-TotaLLy uNdErcOntRoL-

it'scomplicated....it's me...

2010-09-29T19:29:00.000-07:00

--- keep holding on ---
by. Avril Lavigne

You're not alone
Together we stand
I'll be by your side, you know I'll take your hand
When it gets cold
And it feels like the end
There's no place to go
You know I won't give in
No I won't give in

Keep holding on
'Cause you know we'll make it through, we'll make it through
Just stay strong
'Cause you know I'm here for you, I'm here for you
There's nothing you could say
Nothing you could do
There's no other way when it comes to the truth
So keep holding on
'Cause you know we'll make it through, we'll make it through

So far away
I wish you were here
Before it's too late, this could all disappear
Before the doors close
And it comes to an end
With you by my side I will fight and defend,
I'll fight and defend
Yeah, yeah!

Keep holding on
'Cause you know we'll make it through, we'll make it through
Just stay strong
'Cause you know I'm here for you, I'm here for you
There's nothing you could say
Nothing you could do
There's no other way when it comes to the truth
So keep holding on
'Cause you know we'll make it through, we'll make it through

Hear me when I say, when I say I believe
Nothing's gonna change, nothing's gonna change destiny
Whatever's meant to be will work out perfectly
Yeah, yeah, yeah, yeah!

La da da da
La da da da
La da da da da da da da da

Keep holding on
'Cause you know we'll make it through, we'll make it through
Just stay strong
'Cause you know I'm here for you, I'm here for you
There's nothing you could say
Nothing you could do
There's no other way when it comes to the truth
So keep holding on
'Cause you know we'll make it through, we'll make it through

Keep holding on...
Keep holding on

There's nothing you could say
Nothing you could do
There's no other way when it comes to the truth
So keep holding on
'Cause you know we'll make it through, we'll make it through

^fighting^

Sayap Ayam Panggang Kecap

2010-09-16T01:03:00.000-07:00

hmm..dapat liat menunya di detik.com, kapan yah bisa nyoba??

Bahan:
10 buah sayap ayam
1 siung bawang putih, parut
1 sdt garam
minyak goreng
Bumbu, aduk rata:
2 sdm saus BBQ
2 sdm saus tiram
2 sdm saus cabai botolan
1 siung bawang putih, cincang halus
2 butir bawang merah, cincang halus
½ sdt merica bubuk
1 sdt garam
1 sdm minyak sayur.

Cara membuat:

Bersihkan sayap ayam. Potong ujung yang runcing.
Remas-remas dengan bawang putih dan garam hingga rata.
Goreng dalam minyak panas hingga agak kering. Tiriskan.
Lumuri tiap sayap ayam dengan Bumbu.
Taruh di piring tahan panas. Panggang dalam oven panas selama 30 menit.
Angkat, sajikan panas.

Untuk 10 buah

Lama tak bersua..

2010-09-14T18:45:00.000-07:00

hmmm...akhirnya buka lagi deh ni blog. diaktifin ajah yahh??tapi saia punya 3 blog, semua di update gitu??

hahaha..

cuma pengen ngisi sesuatu aja,,rada aneh juga,hihihi..

ah,,udah ah gag niat bikin tulisan..

c u

Tugas Penelitian Kelompok IMK

2010-05-26T10:21:00.000-07:00

Bahasan : Facebook

Tugas : membandingkan guideline di buku dengan tampilan yang terdapat di facebook. berikut bahan dan contoh perbandingan terhadap facebook.

bab guideline dimulai dari bab 3 sampai bab 18. dibagi perorang, setiap orang mendapat 2 bab bahasan. untuk bab 3 dan 4 dipecah untuk dibahas bersama. berikut pembagian bab :
- Kutha : bab 5,6 bab 3 bagian 3.1,3.2,3.3
- Ayu : bab 7,8 bab 3 bagian 3.4,3.5,3.6
- PW : bab 9,10 bab 3 bagian 3.7,3.8,3.9
- Agung : bab 11,12 bab 3 bagian 3.10,3.11,3.12
- Janu : bab 13,14 bab 3 bagian 3.13 dan bab 4 bagian 4.1
- Dayu : bab 15,16 bab 4 bagian 4.2,4.3
- Dipta : bab 17,18 bab 4 bagian 4.4,4.5

untuk bahan guideline dan contoh perbandingan dapat donlot di :
contoh evaluasi
http://www.scribd.com/doc/32024896

guideline book
http://www.scribd.com/doc/2962630/guidelines-book
atau
http://www.scribd.com/doc/31187276/Guidelines-Book

bahan tgs prototipe kelompok 1 (tugas lainnya)
http://www.ziddu.com/download/10022418/tokoBukuOnline.doc.html

atau bisa diminta ke dayu atau ayu.

catatan :
+ tugas selanjutnya bahasan untuk tugas prototipe kelompok, yang akan dikerjakan setelah tugas ini. yang diatas hanya bahannya saja.
+ dalam dokumen yang akan dibuat, translate guideline nya dan berikan komen. contoh :

3:4 Enable Users to Skip Repetitive Navigation Links
guideline : untuk membantu mereka menggunakan teknologi bantuan, menyediakan suatu pengertian-pengertian bagi user untuk melewati Repetitive Navigation Links
komentar : pada facebook tidak terdapat fitur untuk Repetitive Navigation Links

+ bila salah satu guideline terdapat di facebook, harap diberikan gambarnya.

tugas ini dikumpulkan bersama selasa,1 mei 2010,mengingat harus dirangkum terlebih dahulu. setelah itu, akan dilanjutkan dengan tugas prototipe kelompok. terima kasih. ^^

Apa segitunya aq nda dianggap???

2010-01-13T00:47:00.001-08:00

Ok..
Mank uda lama kali aku nda ngisi..
Sekalinya ngsi isinya marah2..
Aku taw itu gag baik,,tp dmn aku bs numpahin semua ini..arghhh...

Kenapa c dg mereka..??
Selalu aja bikin kesal..apa krn dasar nya aq kesal ma ssorg..wah,aku dah mencoba untuk gag kecewa atau marahh..tp..this is really enough for me,,how could i hurt myself so deep??
Just because let this person make me annoying...

Trnyata..menerima bhwa ada orng yg seperti begitu mengecewakan..aku kesal..tp aku sadar aku gag berhak marah atas kebodohan ku..menerima semua kekecewaan dan trus maafin dy..

Kesallllll.......!!!!!.
Nda tw hrs bgmn melewati dan menghadapinya.....!!!!?????

Object Oriented

2009-09-15T07:12:00.001-07:00

Check out this SlideShare Presentation:

Object Oriented

View more presentations from asepsuhendar.

curhat lagi ah..

2009-07-30T07:45:00.000-07:00

okayyy...

kantor tempat aku pkl bakal pindahan ni ke daerah MM, yang merupakan daerah padat penduduk, yang juga daerah tempat tingal ku. hurayy.. betewe, aku agak bingung maw hepi atau malah mesem, abis bakal dipalak tuh tiap makan siang, hehe..

dua hari ini aku, ga ol, karena yah.. kantor pindahan, bantuin upacarain, dsb. its really fun, if we don't have to wait for the order(becoz its always spend half of day, just waiting in bore mood). even there was none of our job, its just like we're (the PKL team) having picnic. funny thing, but make us feel . . .

hahaha

selain itu, finally, today, i can use my speedyt modem. humph.. and i have to spen 650mb capacitys, hoaww.. how nice..

sudah ah, masih harus donlot dulu nh..

udah dulu yaa..............

daghhhh

boys over flower,,nice cinderella story...

2009-07-22T23:17:00.001-07:00

hua,,akhirnya malah menghabiskan waktu pkl dengan membaca komik Hana Yori Dango atau dalam bahasa inggrisnya Boys ofer flower. keterusan donlot, jadi ga lese2 deh. wkwkwkwkwkw...

kalo mw baca silahkan donlot disini
walaupun gambarnya ga begitu menarik. cerita nya seru juga, lebih mirip meteor garden menurutku. hehehe...

udah ah, mw lanjutin donlot plus lanjutin baca...

dagh...........

^^

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sebulan lg PKL nya

2009-07-21T20:27:00.001-07:00

sebulan udah berlalu. sisanya, tinggal sebulan lagi deh menyelesaikan pkl nya disini. rada gmn ya, seneng krn udah bs jalanin selama sebulan dengan pas2n, sedih krn bentar lg balik ke rutinitas kuliah (plus seneng juga ketemu temen2 lg), dan bingung menyelesaikan semua format laporan. selain itu mungkin ada banyak hal yang ga ku sampaiin ya...

yang jelas, menghabiskan waktu sebulan ini memang ga bisa dibilang dengan baik. aku ngerasa ga pernah jadi pegawai yang baik. ngeliat ini semua ko aku jadi ngerasa masa depan suram ya? hix.. ngobrol2 sama temen lainnya jg ga ada yang bagus c. rata2 hanya menghabiskan waktu sendiri aja. apa bener ini dunia kerja? mungkin hanya karna aku ga tau gawe aja kali ya.

beberapa hari sebelumnya, aku ngalamin kejadian2 ga nyaman jg c. mobil ketabrak plus kakak operasi usus buntu. begitu masalah selesai, aku sakit, ponakan ku demam. and even there's long weekend (3days), i just spending my time in home hospital home. little bit, mad, but its happen, and we just have to approve it.

sekarang gmn caranya untuk bener2 tau gmn orang kerja. tinggal sebulan kurang lagi waktunya. selesaikan semua yang harus dikerjakan. dan mudah2an aku bisa berhasil dan memperbaiki kesalahan masa lalu kuliah ku.

mudah2n juga aku juga jadi lebih rajin untuk mencapai hal2 nya aku pengen!!!!

wish mydreams come true....(^^)v

God bless us

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did i become someone annoying the others???

2009-07-15T19:41:00.001-07:00

pagi ini, aku telat lagi. salahku si sepenuhnya. aku mengikuti kepuasan diri (cie elah..) untuk bangun tidak pagi(a.k.a. siang,haha..). bahkan setelah mau berangkat pun, ada aja kejadian yang bikin aku bolak-balik masuk rmh lg untuk mengambil ybarang yang ketinggalan. lucu nya, aku ingat setelah selesai mengunci pintu. dodol!!!

setelah itu, di jalan kejebak macet dan ketemu truk air mogok, shit.. will today makes me on bad mood? hopefully not, because everything not on my control, and i don't know what would be happen in noon.

kejadian hari ini bikin aku merasa mungkin menjadi sosok yang menyebalkan, karena marah2 atau hanya krn cuek yang kemudian bikin jengkel. jadi untuk, pihak2 yang aku buat menjadi kesal n marah n bete karena aku bandel n keras kepala, aku mohon maaf yaa.. i'm just an ordinary people who can be frustration. heeeheee.....

entah kenapa juga ko rasanya ada yang salah dan hilang, tapi apa? lebih baik ga usah dipikirkan, daripada aku mencari sesuatu yang aku bahkan ga yakin hal itu ada.

finally, today i'm on office, doing something, and hopefully everything goes fine and will be finish soon.hehe..

then, pray for The Lord, and Thankfull for the gift on our life..GBUs

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on the complex mood??

2009-07-14T20:52:00.000-07:00

hehe...

hampir 1 bulan aku pkl disini, ga tau apa bisa dibilang menjadi suatu perasaan yang menyenangkan atau menyedihkan. tapi ko rasanya aneh ya?

disini aku belum merasakan kerja secara mendalam, mgkn karena kita belum ada trainer sbelumnya, atau mgkn karena akunya yang belum bs niat ky org kerja? bersyukur deh yang udah bisa dengan sukses menikmati waktu kerja secara baik. walaupun hal2 yang dikerjakan belum sepenuhnya berguna.

memang seharusnya bikin list kerjaan per hari. tapi susah juga ya ol perhari inget untuk buka halaman blog. mana karang sibuk smbil ym an. hehe...

yang pasti aku harus meningkatkan niatku untuk melaksanakan kegiatan pkl lebih nyaman. ntah kenapa hal itu susah banget. mungkin krn perasaan ku ajah yang terpaku sama pikiran bahwa aku sama sekali tidak melakukan hal yang berguna. aku bingung sebenarnya. namun nyatanya itu hal yang memenuhi pikiran ku kemarin, hari ini dan (mudah2n c ga) besok. lucunya, tmn2 ku blg aku harus bs lebih hepi lg n mandiri dalam ngahadapinnya, sehingga hal itu ga jadi berlarut2.

yang jelas aku harus lebih berusaha mengexplore diri untuk find how to be a IT worker,humph...

[[*-*]]

it's been 2 weeks

2009-07-08T20:55:00.000-07:00

setelah 2 minggu di AJN, nothing special in moment. everything goes fine in each days. but sometimes it makes me feel don't need to be here. it is not really okey for me. but,, who cares..

ini juga udah 1minggu ga online karena ga dibolein ma kakaq pake modemnya..
tapi sukurnya akhirnya bole

gag ngrti juga, tapi harusnya aku lebih concern terhadap pkl ku,, biar sukses. hehehe...

second day : monday, jun 22 '09

2009-06-22T01:45:00.000-07:00

it's already afternoon..

gag tau mesti gmn, yang jelas pkl hari ini membuat aku belajar satu hal :
sebagai orang yang bekerja di bidang IT harus merelakan dirinya trus menatap layar komputer entah karena terpaksa ataupun tertarik dengan apa yang di kerjakan
funny things, i guess, karena aku ga pernah berpikiran akan menatapnya selama 12 jam ditiap hariku..

kalo begadang ngerjain tugas dan harus menatap layar itu biasa..
hari ini ga biasa........

hwaaaaaa!!!

hari pertama PKL

2009-06-18T23:18:00.000-07:00

hweheiiii ^^,

akhirnya hari PKL dateng juga. sempet bingung dengan jam kerja mulai hari ini. namun akhirnya stlah ketidak tahuan selama 2 jam, akhrnya bisa masuk juga ke dalam kantor dan duduk disatu ruangan untuk melakukan sesuatu(yang masih belum bisa dikatakan sebagai kerjaan). karena hari ini juga hari jumat, mungkin pembimbing akhirnya memberikan waktu luang untuk menikmati waktu dan ruang kerja pkl..pengenalan..jadinya masih santai..hohoho

hari ini selain buka2 halaman web gag jelas, aku teringat niat mengisi blog mengenai kegiatan harian..little bit nervous and feeling so confused..

after all, aku tahu dengan baik tentang tempat pkl ku. info2 mengenai struktur sistem di dalamnya udah sempet dijelasin ma pembimbing lapangan ku disini, tapi . . . rada bingung, mungkin otakku terlalu kaku hingga terkejut mengetahui ada hal yang lebih besar dari yang kupelajari didalam kuliahku..

smoga awal yang baik ini juga akan berakhir baik juga untuk kedepannya...
thx God for today,.

mAgGang!!!

2009-05-23T23:39:00.000-07:00

its about less a month before magang,.dan aku tetep lum lese dengan proposal..
juga TA,.(walaupun TA yang kupikirin duluan)

i'm confused!!!
persiapan matang pun tak jua kelar!!

love,,isn't it?

2009-05-23T23:16:00.000-07:00

hupss..

not from begining story..
gw malah cerita akhirnya "

.............................

sedih
.............................

"

gag tau kenapa
gw hanya mencoba menyukai dy, tapi malah pas gw uda seneng bisa deket, n kesel ma kelakuannya, dia udh jd milik yang lain. maybe, mank ga jodoh kali. but sometimes its hurt me for a second, why finding someone that i love so its too hard for me.

gw pernah gagal. dan gw akui belum spenuhnya gw sembuh. tapi apa karna itu cinta ga dateng lg dalam hidup gw?its shocking me!!!

whatever,,life must go even i have to through myself....
T_T

Normalization Exercise

2009-05-03T09:30:00.001-07:00

from the picture, we can see ERD and make the table from it.

then, make 1NF and 2NF table with functional dependencies

Pegawai

Nopeg -> Napeg,Tgllah,Umur,Alamat,Kdpos
Nopeg -> Nobag
Nopeg -> Bestempl

Bagian

Nobag -> Nabag,Lokasi
Nobag -> Pimpbag

Proyek

Nopro -> Napro,Lokapr
Nopro -> Nobag

however, kerja table and tanggungan table don't have to decomposition, because its a table of relation and dependency with no primary key.

then, 3NF functional dependency would be

reference :
NURAH AGUS SANJAYA ER, S.KOM,M.KOM. Slide ppt ke-6 : NORMALIZATION.

Normalization

2009-04-26T05:43:00.000-07:00

database planning process
>collecting requirement of users or business
>developing E-R model based on requirement of users or business
>converting E-R model to collection of relation (table)
>normalization relatio for eliminating anomaly
>implementation of database with creating table for each relation that had normalization

database normalization
>normalization is forming process of database structure so most of ambiguity can be eliminating
>normalization stage started from lighter stage (1NF) to tighter stage(5NF)
>usually, only reaching at level 3NF or BCNF because its quite for producting tables in good quality
>why we do normalization?
>>>optimalizing of table structures
>>>increasing speed
>>>eliminating of the same input data
>>>more efficient in using storage
>>>decreasing redundancy
>>>avoid anomaly (insertion anomalies, deletion anomalies, update anomalies).
>>>increase data integrity
>a table told great (efficient) or normal if fulfilling 3 criteria, that is :
1. if there are decomposition table, so decomposition must guaranteed to be safe (Lossless-Join Decomposition). its mean, after the table was elaborated become new tables, that tale can relsulting the same previously table
2. looking after to depended of functional at data changes (Dependency Preservation).
3. not break the Boyce-Code Normal Form (BCNF)
>if third criteria (BCNF) cannot complete, at least the table ot break normal form third stage (3rd Normal Form/ 3NF)

functional dependency
>described connection of attributes in a relation
>an attribute told as functionally dependant inother if we using attribute value for determine another attribute value
>symsbol that used is for deputizing functional dependency that read as functional to determine.
>notation : A -> B
>>>A and B is attribute from a table. its means as functional A determine B or B depended in A, if and as if there are 2 row data with same A value, so B value can be same
>notation : A-/>B or Ax->B
>>>it is reverse from previously notatioen.
>example:

>>Functional Dependency:
>>>NRP -> Nama
>>>Mata_Kuliah, NRP -> Nilai
>>Non Functional Dependency:
>>>Mata_Kuliah -> NRP
>>>NRP -> Nilai
>functional dependency from value table is
>>>Nrp -> Nama, because for each value of Nrp is same, so name value same too
>>>{Mata_kuliah, NRP} -> Nilai, because value attribute depend on Mata_kuliah and Nrp as at same time. in other mean, for Mata_kuliah and Nrp that same, value will same too, because Mata_kuliah and Nrp was representing key (in unique characther)
>>>Mata_kuliah -> NRP
>>>NRP -> Nilai

first normal form - 1NF
>a table that told as first normal form if it not as unnormalized form table, where happen duplication of same kind field and possible for exist null field
>not be able for:
>>>multivalued attribute
>>>composite attribute or combination of both so price of attribute domain must atomic price.
>for example :
>>>data mahasiswa

>>>this tables not up to standard of 1NF
>>>decomposition become :

second normal form - 2NF
>2NF completed in a table if up to standard of 1NF, and all attribute except primery key, intactly have functional dependency on primary key
>a table not complete as 2NF if there are attribute that only have a partial functional dependency
>if there are attribute that not have dependency of primary key, so that attribute have to moved or eliminated
>functional dependency X -> Y told as complete if deleting a attribute A from X, that's mean Y not depend as functional anymore
>functional dependency X -> Y told as partial if deleting a attribute A from X, that's mean Y still depend as functional
>relation schema R in 2NF form if each attribute non primary key A is member of R depend on as complete as functional in primary key R
>example :this table complete 1NF, but not include as 2NF
>>>not complete as 2NF, because {NIM,KodeMk} assumed as primary key, while
{NIM, KodeMk} -> NamaMhs
{NIM, KodeMk} -> Alamat
{NIM, KodeMk} -> Matakuliah
{NIM, KodeMk} -> Sks
{NIM, KodeMk} -> NilaiHuruf
>>>that table need to decomposition become several table that p to standard 2NF
>>>the Functional dependency is:
{NIM, KodeMk} -> NilaiHuruf (fd1)
NIM -> {NamaMhs, Alamat} (fd2)
KodeMk -> {Matakuliah, Sks} (fd3)
>>>So :
fd1 (NIM, KodeMk, NilaiHuruf) -> Tabel Nilai
fd2 (NIM, NamaMhs, Alamat) -> Tabel Mahasiswa
fd3 (KodeMk, Matakuliah, Sks) -> Tabel MataKuliah

third normal form - 3NF
>3NF complete if have standard of 2NF form, and if there are no attribute non primary key that have dependency with other attribute non primary key (transitive dependensy)
>example :
>>>this table was up to standard of 2NF, but not complete as 3NF

>>>because there are still have an attribute of non primary key (viz, Kota and Provinsi) that have dependency with other attribute non primary key(viz, KodePos)
KodePos -> {Kota,Provinsi}
>>>until that table has to decomposition become Mahasiswa (NIM, NamaMhs, Jalan, KodePos) and KodePos (KodePos, Provinsi, Kota)

Boyce-Codd Normal Form (BCNF)
>BCNF has more powerful force and 3NF. for become BCNF, relation must in form of 1NF and each attribute forced depend on function at super key attribute
>for example : there are seminar relation, primary key is NPM + Seminar.
>case : student is able to take a or two seminar. each seminar need 2 counsellor and each studet guided by one of them. each counsellor only able to take one seminar. in this example, NPM and seminar showing a counsellor.

>sminar relation form is 3NF, but not BCNF because seminar code still depend with function on counsoller. if each counsellor has teach omly one seminar. seminar depend on one attribute that not super key as standardization as BCNF, so seminar relation must divided become two, that is :

4NF and 5NF
>relation is fourth normal form - 4NF, if relation in BCNF and no involved dependency multivalue. for eliminating dependency multivalue from one relation, we divide relation become two new relation. each relation containing two attribute that have multivalue connection.
>relation is fifth normal form - 5NF deal with property that known as join without losing information (lossless join). 5NF as known as PJNF or projection join normal form.this case is very rare emerge and difficult to detected practically

REFERENCE :
- NGURAH AGUS SANJAYA ER, S.KOM, M.KOM. Slide presentasi : Part 6 - DATABASE NORMALISASI

ER-Diagram

2009-04-17T03:48:00.000-07:00

Database and ERD (Entity Relationship Diagram)
definition of database
- database is group of data that stored into magnetic disk, optical disk, or another secondary data storage.
- fused collection of datas, that connected mutually, from an enterprise (a company, firm, and government).

manufacture company -> production planning data, actual production data, material ordering data, etc
hospital -> data of patient, doctor, nurse, etc

DBMS (Database Management System)

- compilation of database with software application based on database

- the programs of application used for access and take care of database

- main purpose of DBMS is to provide an environment that easier and efficient for using, drawing and saving data and information.

definition of bit, byte, and field

- bit -> smallest part that have some value of 0 and 1

- byte -> collection of same bits

- field -> collection of same bytes as known as attribute

types of attribute

- single vs multivalue

single -> only can containing mostly 1 value
multivalue -> can containing more than 1 value with same kind value

- atomic vs composition

atomic -> cannot divided into smaller attribute
composition -> alliance of smaller attribute

- derived attribute -> attribute that can be yield from other attribute value, for example : age can be yield from attribute of birth datenull

- value attribute -> attribute with no value for a record

- mandatory value attribute -> attribute that must have a value
record or tupple
- a data row inside a relation
- consist of attribute collection which attribute interaction for advising entity or relation as detail
entiry or file
- file is collection of record that have same kind and same element, which the same attribute, but different data value.
- Type of file
In application process, file can be categorized as :

Main file
Transaction file
Report file
History file
Protector file
Activity file

Domain

- collection of value that can be inside one or more attribute.

- Each attribute in database relation defined as domain.

Element key of data

- Key is element of record that used for finding its in access time or can be used for identification each entity/record/row.

Types of key
- Superkey is one or more attribute that can be used for identification entity/record in table as uniquely (not all of attribute can be superkey).
- Candidate key is supperkey with minimal attribute. Candidate key cannot containing the attribute from other table, so candidate key already definite as superkey but not yet the other way.
- Primary key is one of candidate key that can be chosen or determined as primary key with 3 category, that is :

key is more natural for used as reference
key is more simple
key is guaranteed the unique

- alternate key is attribute from candidate key that not chosen as primary key

- Foreign key is any kind attribute that showing to primary key in other table. Foreign key happen in a relation that having cardinality one-to-many or many-to-one. Usually, Foreign key always put in table direct to many.
External key is a lexical attribute (or compilation of lexical attribute) that its value always identification one object instance.

ERD or Entity Relationship Diagram

- A model using word structure that saved in system as abstract,

- Difference between DFD and ERD

DFD is a function network model that will executed by system
ERD is data network model that emphasize in structure and relationship data.

The elements of ERD

- Entity

Something exist inside real system or abstract system which data stored or where are the data.
Symbolized as square of length. There are also line symbol as link between compilation of entity with entity and compilation entity with its attribute.

- Relationship

Natural Relation happened between entity.
Generally, given name with basic verb that facilitating for reading its relation.
Symbolized as rhomb

- Relationship degree

Account of entity that participated inside a relationship.
Degree is often used in ERD\

- Attribute

Characteristic of each entity or relationship
Symbolized as circle

- Cardinality

Showing maximal account tupel that can be relation with entity in the other one.

Relationship degree

- Unary relationship is Relationship model happen between the entity which coming from the same entity set.

- Binary relationship is relationship model happen between 2 entity.
- Ternary relationship between instance of 3 entity unilaterally.
Cardinality

- There are 3 cardinality relation, that is :

One-to-one : relationship degree one-to-one expressed by one event in first entity, only have one relation with one event in second entity and on the contrary.
One-to-many or many-to-one : relationship degree one-to-many is equal many-to-one dependent from where that relationship seen. For one event in first entity can have many relationship with event in second entity, the other way, one event in second entity only have relationship with one event in first entity.
Many-to-many : happen if each event in an entity having a lot of relationship with event in other entity

Example : cardinality

reference :
- NGURAH AGUS SANJAYA ER, S.KOM, M.KOM. Slide presentasi : Part 5 - DATABASE DAN ER-DIAGRAM.

DFD(Data Flow Diagram) Quiz

2009-04-03T08:07:00.000-07:00

Data Flow Diagram (DFD) describe division of system into smaller module. it is easier for user that not quite understand about computer to know how system works.

Context Diagram
> consist of a process and describing scope from a system
> the highest level from DFD that describing all input to system and output from system.
> system limited by boundary (that described with dash line)
> there is not be able to storage.

Zero Diagram
> describing process of DFD
> giving opinion totally about handled system, indicate function or main process that exist, data flow and external entity.
> in this level, enable for data storage.
> for unexplained process in next level ,then addicted symbol ‘*’ or ‘P’ in last number of process.
> balancing input and output between Zero diagram and context diagram must protected.

Detail Diagram
> the diagram that explaining what process inside zero diagram or next up level.
> number sequence level of DFD

> inside a level better not have more than 7 process and maximal 9, if more then must do decomposition.

Process Specification
> every process in DFD must have process specification
> in top level method that used for describing process with descriptive sentence
> in detail level that is in bottom process (functional primitive) requiring specification more structured.
> process specification can be guide for programmer in coding
> method that used in process specification: explain process in narrative, decision table, decision tree.

External Unity
> Something outside system, but its giving data into system or giving data from system
> symbol by box notation
> external entity not included as part as system
> giving name :
==> terminal name in the form of noun
==>terminal cannot have the same name, except the same object

Data Flow
> representing place stream of information
> described with straight line that connecting component from system
> data flow shown with arrow and line that given name as stream data flow
> data flow stream among process, data storage and showing data flow from data as input for system
> guidance of giving name :
==> name of data flow consist of some word stream connected with continue line
==> there is can’t be data flow that have same name and giving name must expressing its.
==> data flow consist of some element can be expressed with element group
==> avoid usage of word ‘data’ and ‘information’ for giving a name in data flow
==> as possible, the name of data flow fully written
> another rules :
==> the name of data flow enter into a process cannot same with the name of data flow that out from that process
==> data flow that in or out from data storage haven’t to given name if :
====> simple data flow and easier to understand
====> data flow describing all data item
==> there are can’t be data flow from terminal to data storage or on the contrary because terminal is not part of system, connection between terminal and data storage must pass process

Process
> process represented what system done
> process can turn data or input data flow into output data flow
> process functioning for transformation one or some input data become one or more output data appropriate with specification needed
> every process have one or some input and resulting one or some output
> process as known as bubble
> guidance of giving name process :
==> name process consist of verb and noun that expressing its function process
==> don’t using process word as part name a bubble
==> there is can’t be some process have the same name
==> process must given number. Number sequence as possible follow stream or process sequence. However number sequence can’t absolutely represented process sequence chronologically.

Data Storage
> represented existing data repository in system
> symbol with a couple of parallel line or two line with one of other side was open.
> process can taking data from or giving data to database
> guidance of giving name :
==> name must expressing data storage
==> if its name more that one word then must given continued sign

Symbol DFD

Data Dictionary
> function as helping system performer for interpreting application in detail and organizing all data element that used system precisely until user and system analyst having same basic knowledge about input, output, storage and process
> in analysis stage, data dictionary used as communication tools between system analyst and user
> in system planning stage, data dictionary used for make an input, report and database
> Data flow in DAD having global character, for more information can seen in data dictionary
> data dictionary loading the followings :
==> name of data flow: have to recorded in order to reader that needing more clarification about a data flow can easy to search
==> data form : used for grouping data dictionary into usage when system planning
==> data flow : showing where data streaming from and go.
==> clarification : giving explain about the meaning from data flow

Balancing inside DFD
> data flow that in into and out from one process must same with data flow that in into and out from process detailed in bottom level/standard
> the name of data flow that in into and out from one process must same with data flow that in into and out from process detailed
> amount and external entity name from a process must same with amount and external entity name from its process detailed
> things which must have to attention in DFD owning more than one level :
==> there is balancing input and output between one level and next level
==> balancing between level 0 and level 1 seen in input/output from data flow to or from terminal in level 0, while balancing between level 1 and level 2 seen in input/output from data flow to or from its process
==> name of data flow, data storage and terminal in each level must same if have same object

Prohibition inside DFD
> data flow mustn’t from external entity direct to other external entity without pass a process
> data flow mustn’t from data storage direct to external entity without pass a process
> data flow mustn’t from data storage direct to other data storage without pass a process
> data flow from one process direct to other process without pass a data storage better to / as possible avoided

reference:
> Slide PPT : Part 4 -DATA FLOW DIAGRAM, oleh : NGURAH AGUS SANJAYA ER, S.KOM, M.KOM

fourth Quiz

2009-03-27T09:31:00.000-07:00

Requirement Analysis

INITIAL INVESTIGATION

System Investigation Concepts

Problem is gap between purpose of system and real condition of system, with any word, why system fail to reach their purpose of system that have definite before. to know everything that cause system fail analys better have to investigation before taking something to do for repair system. With investigation, an analys will more understand the problem and discussion

Many repair in detecting a problem may not real or not solved. It can be happen because :

a. purpose are too ideal

b. system can’t developed

c. system measuring not accurate

d. statement goal is dated

e. the gap between the ideal and the current system is temporary and will decrease given patience

in stage of problem solving, better to have study with :

describe system condition that have pass with detailed investigation activity

get the ideal system consensus

developing some alternative to decrease gap between ideal system and pass system

choose the best alternative and selling to the management

the aim of investigation is for stable or to show real problem that happen beside as a way an analys to understand deeply their system.

Constraint inside investigation system, is :

· Time, analys minus of time resources for cost

· Cost, related to the time of investigation, so there are limit cost

· Knowledge, system information manager ordered junior analys that not quite in knowledge to observe, so impact with investigation result that can be minus.

· Politics, management or other side propagate issues for obstruct investigation activity

· Interference, there are the other side wants to arrange in investigation activity that cause confesion

Recommendation

· Not take an action if there are no a problem

· Doing a protection with small problems

· Improving user capability or user skill in running or using information system.

· Allowing for modification totally system, so need idea to change it with a new system.

· Put a happen problem into system development plan.

Investigation tactics

– Listen, do not lecture

– do not presolve the problem

– compare stories

– look for reluctant responses

– probe for logical inconsistencies

– observe your effect

– expect hard, boring work

– avoid politics

investigation techniques, include activity of :

· direct internal probes, with 3

technique direct investigation, there are :

o questionnaires

o interview

o observation

· indirect external probes, there are

o procedure flow

o document review

o sampling

o Tabular tools

Description system nowadays, that explain

a. inputs

b. outputs

c. files

d. data elements

e. transaction and action document volume

f. data flow diagrams

REQUIREMENT ANALYSIS

There are 4 goal to reach in this phase, that is

· Explain the system completely

· Describing the ideal system

· Taking the ideal system to nowadays system

with take care of the problems

· Give support user conviction in

system development team

The phase of requirement analysis are interaction

phase intensive between analys and end-user where system development team use their skill to get reaction

and trust from user, so can give good participation.

Method in requirement analysis

· interviews,

· questionnaires,

· observation,

· procedure analysis,

· document survey.

Sampling

Sampling can use for help decrease time and cost.

to choose sample of population, there are need

carefulness so will not fail.

Resources problem

· Time

· Money

· Skill

· Technology

· External factor

Requirement analysis document

· Analysis conduct

· User requirement

· Constraint system

· documentation

GENERATING SYTEMS ALTERNATIVES

Selection of strategic

– Distributed versus centralized processing

– Integrated versus dispersed databases

– Surround strategy of system development

Selection of tactics

· Now or later

o Technology

o Current cash

o Resources skill

o politic

· Change VS modification

· Configuration SLDC

Eight selection of operational planning

Selection of planning consist to 3 group, that is input, processing, and output. There are :

a. Input

   1. On-line versus off-line data entry.

   2. Keyed versus machine-readable data entry.

   3. Centralized versus decentralized data entry.

b. Processing

   4. Batch versus real-time record update.

   5. Sequential versus direct access to records.

   6. Single versus multiple-user update of records.

c. Ouput

   7. Traditional versus turnaround documents.

   8. Structured versus inquiry-based reports.

SELECTING THE PROPER SYSTEM

Comparing tactic : the system is compared based on cost and profit according to relative.

It is 3 ways the A system can be says “more superior then other system” if:

Ø A have a lower cost than B, and have same profit

Ø A have a lower cost than B and higher profit then B

Ø Both of the system have same cost but A have higher profit than B.

Selling information system to

the management as projected benefits

has two problem, there are :

· Difficult to estimate quantity benefits

· If benefits estimated as quantity,

rarely form in money

Why important to translate become profit

to measurable dollars? There are 3 reason :

· Company keep track money with

traditional accountancy system

· Alternative information system compare

with another alternative other area in company

· Top management decide to development system

or not.

Cost Category

a. Hardware

b. Software

c. People

d. Supplies

e. Telecommunications

f. Physical site

Nature of costs

Comparing system information cost with system life,

analys projecting how much changes cost for future.

There 2 model cost operation system information :

a. Linear.

b. Exponential.

c. Step function.

Method for comparation system, there is:

a. Break-even analysis (BEP)

b. Payback period

c. Discounted payback period

d. Internal rate of return (IRR).

STUDI SISTEM

Problem statement

1. Nature of the problem detected

(for example, increasing data entry backlogs).

2. How problem was detected

(for example, customer complaints or

performance measurement system).

3. Impact of problem on organizational goals

(for example, delays processing of customer orders

or reduces cash flow).

4. Departments and functions involved

(for example, marketing department and

order processing section of production department).

Existing system documentation

1. System function and interrelationships

(this can be done with a graphic tools,

such as a phyical data flow diagram, accompanied

by step-by-step narrative description).

2. Processing volumes by type of document.

3. Processing times by type of document.

4. Bottlenecks (distribution of backlogs).

5. Organization policies affecting processing

(example, a policy requiring that clerks process

all commercial orders before residential orders).

6. Processing constraints.

   o People (for example, an average 20 percent

       vacancy rate among data entry operators).

   o Hardware.

   o Software.

   o Development funds.

7. Organization of involved departments and

function(for example,an organizational chart).

Problem correction alternatives

1. Procedure for generating information systems

alternatives.

2. Cost determination for different alternatives.

3. Feasibility analysis.

   o Break-even years.

   o Payback years or discounted payback years.

   o Internal rate of return.

4. Qualitative factors.

5. Alternative recommended and why.

6. Alternative comparison with firm's goals

(for example, ROI).

Recommended solution

1. Overall system description

for recommended alternative.

2. New system functions and relationships

(for example, logical data flow diagram).

3. Expected new system results.

   o Costs.

   o Benefits.

4. Proposed development schedule.

5. Development resource needs.

Docummentation

1. Physical and logical data flow diagrams.

2. Processing flow statistics

(volume, timing, and so on).

3. Organizational charts.

4. Feasibility analysis details.

5. Development project schedule chart.

6. Development project proposed cost schedule.

Here are some guidelines for presenting the system study successfully :

· conduct short presentation

· reduce detail description technique

· represented clearly with visual tool

· bring workstation portable

· emphasized advantage from information system with a few existing alternative according to condition of atural company

Go / No-go decision

–        If the company decide to developmney the system,

then information department will do next process,

its a design process sistem.

– If not, the System Development Life Cycle (SDLC)

will be stop.

– Frequently will be found problem with

studying system and generally top management

will ask to re-working with studying system

– Model will explain some stage part which

repeat and sometimes information department

will make decision repeating the stage before

explain studying system

– With alternative, decision for repeating

a SDLC stage previously or not is called

Go – No –Go Decision







Reference:

Slide PPT Pengamatan Awal, Kebutuhan Analisis; Ngurah Agus Sanjaya ER, S.KOM, M.KOM
http://kuliah.dinus.ac.id/ika/asi.html

komputer vs hari raya

2009-03-27T09:21:00.000-07:00

hix..
hixx..

laptop q tak kunjung benar, eh.. yang ada malah komputer hang stlah di dfrag..
menyebalkan c.. yah maw digimanain lagi

mana hari raya datang silih berganti,
yang ada dibanding mikirin komputer dan tugas..
malah harus numplek ama jejaitan dan tandingan..

tapi aku mang hanya bisa pasrah sih..
namanya juga hari raya,,
ada senengnya juga,bisa lancar bikin sampian
hehe...

nyepi nya juga lumayan, meski puasa tak full 1 hari
aku bisa menikmati istirahat dari kepenatan..

yang pasti besok kuningan, jadi harus bangun pagi untuk mebanten...

'met kuningan..'

akhirnya...

2009-03-08T06:03:00.000-07:00

huih..

akhirnya bisa ngenet lagi!!!
merdeka!!!

kemaren koneksi internet dirumah mati, bikin q tak bisa browsing chating dkk deh..
males n bete booo...

blum lagi laptop yang mendadak skak mat,.
n harus diinstall ulang
sayang nya tak puna cd na..

finally,,
bisa ngenet dengan sukses nya...

^^

Third Quiz in ADSI

2009-03-08T05:45:00.000-07:00

System Development

System development can be interpreted as compilation of new system for replacing the all of old system or repairing the existing system.

The important of system development is :

Existence of problems at the old system, that can be the form of

An error
Growth of Organization

To reach for the opportunity
Existence of instructions from directives

The purpose of system development

To resolving the existence of problems

Reach for the opportunity

Fulfilling the existence of instructions

The organization’s expectation after implementing an information system

After developing the system, the expectation is upgrading level connected with

Performance. Upgrading the result of job activity in new system, until its more effective. Performance can be measured from throughput and response time.

Information. Upgrading of information quality that given.

Economy. Upgrading in benefit or advantages or decreases cost happen.

Control. Upgrading in control for detection and repairing the mistakes that happen.

Efficiency. Upgrading of operation efficiency.

Services. Upgrading of service that given by system.

The principles of developing an information system

Developed system is management

Developed system is big capital investment by considering to

investigation of all the alternatives

the best investment has to valuable

Developed system is require an educated people

Activity step and duty must be conducted in the process of system development

the process of system development doesn’t have in sequence

don’t afraid to canceled the project

the documentation has to be performed to guidance in system development

There are many of system development life cycle models. three of them is

Waterfall model

The waterfall model is a sequential development process, in which development is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design (validation), Construction, Testing and maintenance.

The first formal description of the waterfall model is often cited to be an article published in 1970 by Winston W. Royce (1929–1995). In Royce's original waterfall model, the following phases are followed in order:

To follow the waterfall model, one proceeds from one phase to the next in a purely sequential manner. For example, one first completes requirements specification, which are set in stone. When the requirements are fully completed, one proceeds to design. The software in question is designed and a blueprint is drawn for implementers (coders) to follow — this design should be a plan for implementing the requirements given. When the design is fully completed, an implementation of that design is made by coders. Towards the later stages of this implementation phase, disparate software components produced are combined to introduce new functionality and remove errors.

2. Iterative and incremental development

Iterative and Incremental development is a cyclic software development process developed in response to the weaknesses of the waterfall model. It starts with an initial planning and ends with deployment with the cyclic interaction in between.

Incremental development is a scheduling and staging strategy, in which the various parts of the system are developed at different times or rates, and integrated as they are completed. It does not imply, require nor preclude iterative development or waterfall development - both of those are rework strategies. The alternative to incremental development is to develop the entire system with a "big bang" integration.

Iterative development is a rework scheduling strategy in which time is set aside to revise and improve parts of the system. It does not presuppose incremental development, but works very well with it. A typical difference is that the output from an increment is not necessarily subject to further refinement, and its testing or user feedback is not used as input for revising the plans or specifications of the successive increments. On the contrary, the output from an iteration is examined for modification, and especially for revising the targets of the successive iterations

Spiral model

The spiral model is a software development process combining elements of both design and prototyping-in-stages, in an effort to combine advantages of top-down and bottom-up concepts. Also known as the spiral lifecycle model, it is a systems development method (SDM) used in information technology (IT). This model of development combines the features of the prototyping model and the waterfall model. The spiral model is intended for large, expensive and complicated projects.

The steps in the spiral model can be generalized as follows:

The new system requirements are defined in as much detail as possible. This usually involves interviewing a number of users representing all the external or internal users and other aspects of the existing system.

A preliminary design is created for the new system.

A first prototype of the new system is constructed from the preliminary design. This is usually a scaled-down system, and represents an approximation of the characteristics of the final product.

A second prototype is evolved by a fourfold procedure:

evaluating the first prototype in terms of its strengths, weaknesses, and risks;

defining the requirements of the second prototype;

planning and designing the second prototype;

constructing and testing the second prototype.

Approaches of developing a system

There are several approach for developing a system, that is :

- Looked into the methodology that used is

- Classical approach. This methodology approach, developing system with following the steps in system life cycle, is approach inside system development by following adequate technique.

- Structured approach. This methodology approach, basically trying to provide to the system analysis addition of tools and techniques for developing the system beside remain to follow idea of system life cycle.

- Looked into the reached target

- Piecemeal Approach, is approach system development emphasize to an event or application.

- Systems Approach, observe information system as an integrated unity for each event or application.

- looked into the way of determining requirement of system :

- Bottom Up Approach, started from low level organization, that is operational level where the transaction done.

- Top-down approach, started from high level organization, that is strategic planning level.

- looked into how to developing:

- Total-system approach, is approach developing system totally at once time.

- Modular approach. this approach try to breaking complicated system into some simple part or module, so the system is easier to understand and developed.

- looked into the technology that used is :

- Great Loop Approach, applying all change at once time with using sophisticated technology.

- Evolution Approach, applying sophisticated only for applications just needing at that moment and will developing for next periods following the requirements according to growth of existing technology.

the meaning of methodology, method and algorithm is :

Methodology is methods unit, procedures , job concepts , rules, and postulates that used for a knowledge, art, or other discipline.

method is a manner or systematic technique to do something.

Algorithm is the sequence procedure that given by a methodology for resolving the problem.

Methodologies of system development classified become three group :

1. Functional Decomposition Methodologies. This methodology is emphasize in system solver into smaller subsystems, until it is easier to understand, planning and implementation.

2. Data Oriented Methodologies. This methodology is emphasize in characteristic of data that would have proceed. This methodology separate become two class, that is :

Data-flow oriented methodologies. Generally, This methodology based on system solver into modules that based on the type of data element and behavior of its module logic inside the system.

Data-structured oriented methodologies. This methodologies has emphasize structure from input and output in system. Then, this structure will used as basic structure from its system. Function relational between module or system elements explained from the structure system.

3. Prescriptive Methodologies

Included this methodologies is :

ISDOS, is developed software by university of Michigan. The ability of ISDOS is automatic the process of development system.

PLEXSYS. The ability of PLEXSYS is to do transformation a language of high level computer language into an executable code for a configuration the hardware that expected.

PRIDE offered by a company in united state, that is M. Bryce & Ass. Pride is a great compilation software for analysis or design structured system, management data, project management and documentation.

SDM /70 or Systems Development Methodology /70 developed and propagated by a company in united state. This methodology is a software that has content with collection of method, estimation, documentation, and administration instruction for helping user to developing and take care of system

SPECTRUM

SRES and SREM

tools for developing a system can be :

1. Graph, that is : HIPO, DFD, SADT, W/O, JSD

2. Chart, that is : activity charting (systems flowchart, program flowchart, paperwork flowchart or called as for flowchart, database relationship flowchart, process flowchat, gantt chart), layaout chating, and personal relationship charting.

there are many techniques used in developing a system :

project management techniques, that is : CPM (critical path method) and PERT(Program Evaluation and review technique) . This technique used for project scheduling.
fact finding techniques, technique that can used for collecting the data and finding facts in learning event the exist system. this techniques include : interview, observation, questionnaires, sampling.
cost-effectiveness analysis (or cost-benefit analysis)
meeting perform technique
walkthrough

the differences of being a system analyst and a programmer and also mention what are the knowledge a system analyst should posses

System analyst is the person who analyzing system (learn how the problems arise and determining requirements user of system) for identification possible resolving. Otherwise, a programmer is person create the program code for an application pursuant to building design which have been made by system analyst.

The knowledge a system analyst should posses is :

Knowledge about data processing technique, computer technique, and computer programming.

General Knowledge of business

Knowledge about the quantitative method

Ability in trouble-shooting

Ability in communication between personal

Ability in constructing relation between personal.

reference :

Prof. Dr. Jogiyanto HM, MBA, Akt. 2005. ANALISIS & DESAIN SISTEM INFORMASI : Pendekatan Terstruktur, Teori dan Praktik Aplikasi Bisnis. Yogyakarta : Penerbit Andi.
www.klasiber.net/file.php/1/PSI_I.pdf

http://en.wikipedia.org/wiki/Waterfall_model
http://en.wikipedia.org/wiki/Iterative_and_incremental_development
http://en.wikipedia.org/wiki/Spiral_model

ADSI(pertemuan ke-2) ->eng

2009-02-20T02:37:00.000-08:00

ANALYSIS AND DESiGN of INFORMATION SYSTEM

WHAT IS SYSTEM?

System is a network work from procedures which interaction, gathering together to do an activity or to finish a certain target. Procedure is a sequence of instruction steps explaining what ( what) must be done, who ( who) has doing, when ( when) its done and how ( how) to do it.

besides, System represent corps of elements which have interaction to reach specific-purpose. system can reach a purpose ( Goal) or reach a target ( Objective).

CHARACTERISTIC SYSTEM

- component : Component which interact, work along to form one unity. including to Supra System

- boundary : Limiting system with external environment or external system

- environments : Anything beyond the limit of system that could influence system operation

- interface : Link media between one sub system to the other sub system

WHAT IS INFORMATION ?

Information is processed data become useful form and meaningful to accepted.

QUALITY OF INFORMATION

- Accurate -> information free from mistakes and not deflect or mislead

- Punctually -> incoming information at receiver can’t be late

- Relevantly -> information have benefit for its usage

Difference of Information system and information technology

- information system is Corps people, data, process, and information technology which have interaction for the collecting, processing, storage, and provide information that required to support an organization.

- information technology is term used to depict combination of computer technology (hardware or software) and also telecommunications technology ( data network, citre, and voice)

Whose Stakeholders in Information System?

-system owners

-system users: internal & external

-system designers

-system builders

-system analysts and project managers

Why require to develop Information System?

- existence of problems

- oddity in System Growth of Organization

- to have opportunities

- existence of directives

ADSI(pertemuan ke-2) ->indo

2009-02-20T00:38:00.000-08:00

ANALISIS DAN DESAIN SISTEM INFORMASI

APA ITU SISTEM?
Sistem adalah suatu jaringan kerja dari prosedur-prosedur yang saling berhubungan, berkumpul bersama-sama untuk melakukan suatu kegiatan atau untuk menyelesaikan suatu sasaran tertentu. sedangkan Prosedur adalah suatu urut-urutan yang tepat dari tahapan-tahapan instruksi yang menerangkan apa (what) yang harus dikerjakan, siapa (who) yang mengerjakan, kapan (when) dikerjakan dan bagaimana (how) mengerjakannya.

selain itu, Sistem merupakan kumpulan dari elemen-elemen yang berinteraksi untuk mencapai tujuan tertentu. sistem dapat mencapai suatu tujuan (Goal) atau mencapai suatu sasaran (Objective)

KARAKTERISTIK SISTEM
component : Komponen yang saling berinteraksi, bekerjasama membentuk satu kesatuan. termasuk juga Supra Sistem
boundary : Membatasi sistem dengan sistem atau lingkungan luarnya
environments : Apapun diluar batas dari sistem yg mempengaruhi operasi sistem
interface : Media penghubung antara satu sub sistem dengan sub sistem lainnya

APA ITU INFORMASI ?
Informasi adalah data yang diolah menjadi bentuk yang lebih berguna dan lebih berarti bagi yang menerimanya.

KUALITAS INFORMASI
- Akurat -> informasi bebas dari kesalahan-kesalahan dan tidak bias atau menyesatkan
- Tepat pada waktunya -> informasi yang datang pada penerima tidak boleh Terlambat
- Relevan -> informasi mempunyai manfaat untuk pemakaiannya.

perbedaan Sistem informasi dan teknologi informasi
-sistem informasi adalah Kumpulan orang, data, proses, dan teknologi informasi yang berinteraksi untuk mengumpulkan,memproses, menyimpan, dan menyediakan informasi yang dibutuhkan untuk mendukung suatu organisasi.
-teknologi informasi adalah istilah yang digunakan untuk menggambarkan kombinasi teknologi komputer (baik hardware maupun software) serta teknologi telekomunikasi (jaringan data, citre, dan suara).

Siapa saja stakeholders dalam SI?
-system owners
-system users: internal & external
-system designers
-system builders
-system analysts and project managers

Mengapa perlu mengembangkan SI?
- existence of problems
- Ketidakberesan dalam Sistem Pertumbuhan Organisasi
- to have opportunities
- existence of directives

blog lagie ihhhhh

2009-02-19T23:54:00.000-08:00

akhir nya mencoba blogspot,,
setelah sebelum nya mencoba wordpress dengan yoecint.wordpress.com
sekarang akhirnya.......

tet toet toet..

hwehehe

(^^)v