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System Development >>>

S D L C

System Development Life Cycle

Main topic:

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Dilakukan karena

Latar Belakang Pengembangan Sistem

S D L C

Kebutuhan bisnis Perkembangan teknologi Perkembangan bisnis

prosesMengefisienkan biayaMeningkatkan

produktivitas Delegasi pengembilan

keputusan

Mengintegrasikan sistemMenggantikan sistem

lama yang tidak stabil

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SikLus Hidup Pengembangan Sistem

>> System Development Life Cycle (SDLC)

Tahapan dari SDLC:

Analisis Sistem

Conceptual Design

Physical Design

mplementasi !"onversi

#perations !$aintenance

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Manajemen Akuntan IS steering committee

Project development team Analis Sistem Programmer Pihak Eksterna

PiC Pengembangan Sistem

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Perencanaan Pengembangan Sistem

Perlu memperhatikan: Consistency

Sesuai dengan renstra perusahaan

Efficiency yang didapatkan melalui pengembangan sistem

Cutting edgetechnology and techni!ues" Lower costs

mengurangi duplikasi# $aktu# dan biaya

Adaptaility untuk pengembangan sistem di masa depan

!ools monitoring Perencanaan Sistem: PE"! #Program E$aluation and "e$iew !echni%ue& 'A(!! Chart

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Design

%irdhouse

&'(

&%ill(

%uy )ood

* +ails

&,(

&%ill(

%uy

Paint

&,(

&Sara(

%uild

%ase

&'(

&%ill(

%uild

-oof

&,(

&%ill(

+ail

.ogether

&'(

&%ill(

Paint *

Decorate

&/(

&Sara(

Sell

&'(

&Sara(

SAMPE PE-. 01A-. 2or building and selling a birdhouse" Each block contains a task and a time estimate &may

include best time# $orst time# and average time(" May indicate $ho $ill be responsible for the task"

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SAMPLE 'A(!! C)A"!

0omplete

.esting

In Development

Milestone

, ' / 3 4 5 6 7 8 ,9

Design birdhouse

%uy $ood * nails

%uy paint

%uild roof%uild base

+ail together

Paint * decorate

Sell

Period

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AnaLisis Sistem

Su topic:

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Langkah%Langkah AnaLisis Sistem

Mengapa sistem dikembangkan# masalah sistem sekarang#cost and benefit ne$ system# harapan dan tujuan

nvestigasi A&aL

Identifikasi kelebihan dan kekurangan sistem

Survey sistem

Kelayakan dari rencana pengembangan sistem

'easibility Study (Studi"elayakan)

Informasi apa saja yang diharapkan dari sistem:

De*nisikan "ebutuhannformasi

Sistem seperti apa yang diperlukan:

De*nisikan "ebutuhanSistem

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Survey

Metode Pengumpuan Data

Intervie$s

;uestionnaires

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'easibiLity Study + Studi "eLayakan

Manajemen# Akuntan# auditor internal# pengelola sistem#user

Dilakukan #leh,

!echnical *easiility +perational *easiility Legal *easiility Scheduling *easiility Economic *easiility

$eliputi

0ost vs %enefit Menggunakan metode +P=# Payback Period# I--

-C#.#$C '-ASBL/0

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De*nisikan "ebutuhan nformasi ! Sistem

,eutuhan -nformasi. meliputi:

> Processes

> Data elements

> Data structure

> Inputs

> Documentation constraints

> 0ontrols> -eorgani?ations

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De*nisikan "ebutuhan nformasi ! Sistem

Kebutuhan sistem# meliputi@> sefulness

> Economy

> -eliability> Availability

> .imeliness

> 0ustomer service

> 0apacity

> Ease of use

> 2leBibility

> .ractability> Auditability

> Security

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Add on >>> Communication 1AP

,9 C ,3

Communication 'ap Prolem

Systems Analyst

Management

"esistanceto change

/osecurity

0ncertainty

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Add on >> Communication GAP

Dalam pelaksanaan sur$ey sistem er1alan. ditekankan adanya

pertimangan perilaku untuk mengatasai1urang komunikasi

Pendekatan untuk mengatasi jurang komunikasi@

Ketahui sebanyak mungkin orang yang terlibat dalam sistem Komunikasikan manfaat sistem yang diusulkan

%erikan jaminan &terkait kerja dan tanggung ja$ab(

%erikan jaminan sistem akan memudahkan kerja

Manajemen support

1umani?e System

Kendalikan Ekspektasi ser

1indari Emosi

KEEP the System SImpe

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ConceptuaL Design

Su topic:

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Tahap-Tahap ConceptuaL Desin

Prepare

DesignSpecifications

Prepare

0onceptual SystemsDesign -eport

Evaluate

DesignAlternatives

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!"aluasi Alternati# Desain $istem

Apakah akan menggunakan 1asa perusahaan

sendiri atau $endor222 Packaged soft$are

In>house development End>user development

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Prepare Desin $peci%cation

Prepare design specificationsMeliputi@

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PhysicaL Design

Su topic:

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Systems

Analysis

0onceptual

Systems

Design

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memperhatikanKegunaan output

Media output

2ormat printed

ocation

AccessDetail

.imeliness

Desain &utput

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'ile and Data(ase Desin

*ile and dataase design =arious company segments need to store data in

compatible formats so that data can be shared across

units"

Important file and database design considerations

include@ Storage medium

Processing mode

Maintenance

Si?e

Activity level

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Desain )nput

Pertimangannya: Input medium

Input source

Input format Input type

=olume

Personnel

2re!uency 0ost

Error detection and correction

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Proram Desin

3ang dierikan kepada programmer: Laporan Desain ,onsep

Pertimangan input.

Pertimangan output.

Pertimangan file.

Pertimangan dataase design

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Desain Prosedur

Dapat disampaikan melalui@System manuals

ser instruction classes.raining materials

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Desain *ontroL

Meliputi: =alidityAuthori?ationAccuracy Security +umerical controlAvailability Maintainability IntegrityAudit trail

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mpLementasiSistem ! "onversi

Su topic:

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Systems

Analysis

0onceptualSystems

Design

Physical

Systems

Design

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Di antaranya (ew electrical outlets

Data communications facilities

"aised floors

)umidity controls

Special lighting

Air4conditioning

Security measures. such as:

*ire protection

Emergency power supply Space for e%uipment. storage. and offices

Pen+iapan $istem

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!est the system Dilakukukan !rial "0(:

Documents and reports ser input

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etode Penu,ian

Pendekatan yang digunakan@)alk>throughs

Processing test transactions

Acceptance tests

!ermasuk 1uga software dari $endor

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*on"ersi Cuto"er/

Cuto$erergantinya sistem lama men1adi sistem aru

.ipe>tipe cutover@

Percontohan (pilot)

Sistem diujicoba pada satu subset keseluruhan operasi

Serentak &directimmediate)

Sistem lama langsung diganti sistem baru

%ertahap (phase in)

Sistem baru digunakan bertahap per bagian

Paralel

Sistem baru dan sistem lama dijalankan bersamaan

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#peration !$aintenance

Su topic:

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Post mpLementation 2evie&

3ang Dire$iew:'oals and +1ecti$esSatisfactionCost and BenefitReliability

AcccuracyTimeliness

Compatiility Controls and security Errors !raining Communications

+rgani5ation changes Documentation

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Terima Kasih

Jakarta, 11 Oktober 2011