1. ANALISIS dan PERANCANGAN SISTEM (INFORMASI)
Catur Iswahyudi, S.Kom, S.E
Department of Informatics Engineering
Institute of Science and Technology AKPRIND Yogyakarta

2. Gambaran Umum Prasyarat : Penunjang : Tools : Tujuan : Kompetensi :
Agar mahasiswa mengerti dan mampu menggunakan teknik-teknik serta perangkat untuk analisis, perancangan, dan pemodelan sistem.
Kompetensi :
Mampu mengimplementasikan Analisis & Perancangan Sistem menggunakan alat bantu perangkat lunak
Prasyarat :
Sistem Informasi (TIFS 1407)
Penunjang :
Prakt. Analisis & Perancangan Sistem
Tools :
Easy CASE
Microsoft Access
Microsoft Visio
Microsoft Project

3. MATERI Pendahuluan : Kontrak Pembelajaran, RPP Konsep Dasar Sistem
Analisis Sistem
Siklus Hidup Sistem
Perancangan Sistem Secara Umum
Pendekatan Perancangan Terstruktur
Pemodelan Sistem (DFD)
Flowchart
Perancangan Sistem Terinci (Output dan Input)
Perancangan Sistem Terinci (Basisdata)
Pengujian dan Jaminan Kualitas Sistem
Manajemen pengembangan sistem
Study Kasus

4. Kalau diringkas Perencanaan sistem (System Planning)
Analisis Sistem (System Analysis)
Perancangan Sistem (System Design)
Implementasi Sistem (System Implementation)
Pendukung sistem dan Keamanan (System Support and Security)

5. PUSTAKA
Kenneth E. Kendall dan Julie E. Kendall, System Analysis and Design 8th Edition, Pearson Education Ltd, 2011 (printed only)
Gary B. Shelly dan Harry J. Rosenblatt, System Analysis and Design 8th Edition, Course Technology, 2010 (ebook available)
Arthur M. Langer, Analysis and Design of Information Systems 3rd Edition, Springer-Verlag London Limited, 2008 (ebook available)
Jeffrey L. Whitten dan Lonnie D. Bentley, Systems Analysis and Design Methods 7th Edition, McGraw-Hill Irwin, 2007 (ebook available)

6. Penilaian Acuan Patokan
Skor Nilai Akhir :
Dasar :
SK No. 073/Skep/Rek/2008, tanggal 20 Peb 2008
NA = 0,5*Tugas+0,2*UTS+0,2*UAS+0,1*Hadir
A  NA = 80 – 100
B  NA = 60 – 79
C  NA = 40 – 59
D  NA = 20 – 39
E  NA =

7. IS and IT
An information system (IS) is an arrangement of people, data, processes, and information technology that interact to collect, process, store, and provide as output the information needed to support an organization.
Information technology is a contemporary term that describes the combination of computer technology (hardware and software) with telecommunications technology (data, image, and voice networks).

9. Systems Development Life Cycle (SDLC)
Project Planning
System Analysis
System Design
Construction/Implementation
Integration and Testing
Installation
Operation & Maintenance
Testing

10. SDLC Phases Project Planning System Analysis
Put project in context
Small part of a much larger system?
New system or modify old?
System Analysis
Define user requirements
Analyze tasks
Develop specifications
System Design - Define the system to be built
Logical design
Physical design

11. SDLC Phases (continued)
Construction
Write (or buy) the code
Integration and Testing
Unit testing, system testing, acceptance testing
Installation
Testing, training, conversion
Operations & Maintenance
Put into production
Fix bugs, add facilities

14. Generic Life Cycle Models
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Generic Life Cycle Models
The Waterfall Model
Prototyping
Iterative and Incremental Development
The Unified Process Life Cycle

15. Waterfall Life Cycle Requirements specification
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Waterfall Life Cycle
Requirements specification
Functional specification
Acceptance test specifications
Unit test report
Sub-system test report
System test report
Acceptance test report
Completed system
Software architecture specification
System test specification
Design specification
Sub-system test specification
Unit test specification
Change requests
Change request report

16. TLC (traditional life cycle) with Iteration
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TLC (traditional life cycle) with Iteration
The cost of this form of iteration increases as the project progresses making it impractical and not effective

17. Merge Sort
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Problems with TLC
Real projects rarely follow such a simple sequential life cycle
Lapsed time between systems engineering and the final installation is long
Iterations are almost inevitable in real projects but are expensive & problematic with the TLC
Unresponsive to changes during project as iteration is difficult
Therefore, this model is only appropriate when the requirements are well-understood

18. Strengths of TLC Provide a very structured way to system development
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Strengths of TLC
Provide a very structured way to system development
Tasks in phases may be assigned to specialized teams.
Project progress evaluated at the end of each phase, and assessment made as to whether the project should proceed

19. Prototyping Life Cycle
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Prototyping Life Cycle
Not intended to deliver the final working system
Quickly built up to explore some aspects of the system
May be used as part of other iterative life cycle
Perform an initial analysis. All software development activity utilizes valuable re­sources. Embarking upon a prototyping exercise without some initial analysis is likely to result in an ill-focused and unstructured activity producing poorly designed software.
Define prototype objectives. Prototyping should have clearly stated objectives. A proto­typing exercise may involve many iterations, each iteration resulting in some improv­ement to the prototype. This may make it difficult for the participants in a prototyping exercise to determine if there is sufficient value to continue the prototyping. However, with clearly defined objectives it should be possible to decide if they have been achieved.
Specify prototype. Although the prototype is not intended for extended operation it is important that it embodies the requisite behaviour. It is almost certainly the case that the proto­type will be subject to modification and this will be easier if the software is built according to sound design principles.
Construct prototype. Since it is important that prototype development is rapid, the use of a rapid development environment is appropriate. For example, if an interactive system is being prototyped, environments such as DelphiTM or Visual Basic® can be most effective.
Evaluate prototype and recommend changes. The purpose of the prototype is to test or explore some aspect of the proposed system. The prototype should be evaluated with respect to the objectives identified at the beginning of the exercise. If the objectives have not been met then the evaluation should specify modifications to the prototype so that it may achieve its objectives. The last three stages are repeated until the objectives of the prototyping exercise are achieved.

20. Prototyping – Advantages
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Prototyping – Advantages
Early demonstrations of system functionality help identify any misunderstandings between developer and client
Client requirements that have been missed are identified
Difficulties in the interface can be identified
The feasibility and usefulness of the system can be tested, even though, by its very nature, the prototype is incomplete

21. Prototyping – Problems:
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Prototyping – Problems:
The client may perceive the prototype as part of the final system
The prototype may divert attention from functional to solely interface issues
Prototyping requires significant user involvement
Managing the prototyping life cycle requires careful decision making

22. Incremental Development
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Incremental Development
The Spiral Model (Boehm, 1988)

23. Incremental Development
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Incremental Development
Iterative problem solving: repeats activities, each can be viewed as a mini-project
Incremental delivery, either external or internal release
New release = new functionality + (improved) previous release
Several approaches to structuring iterations
Define and implement the key system functions
Focus on one subsystem at a time
Define by complexity or risk of certain components

24. Unified Process Life Cycle
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Unified Process Life Cycle
The Unified Process System Development Life Cycle

25. Unified Process Life Cycle
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Unified Process Life Cycle

26. Unified Process Life Cycle
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Unified Process Life Cycle
Captures many elements of best practice
The phases are:
Inception is concerned with determining the scope and purpose of the project;
Elaboration focuses requirements capture and determining the structure of the system;
Construction's main aim is to build the software system;
Transition deals with product installation and rollout.

27. Choose Appropriate Life Cycle
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Choose Appropriate Life Cycle
TCL is highly predictive
Prototyping, Spiral and UP life cycle models are highly adaptive
Predictive versus adaptive approaches to the SDLC

28. Problem Biaya (Kasus Gunung Es)

29. Distribusi Usaha Pengembangan Sistem

30. Problem Kesalahpahaman

31. System Designers and System Builders
System designer – a technical specialist who translates system users’ business requirements and constraints into technical solution. She or he designs the computer databases, inputs, outputs, screens, networks, and software that will meet the system users’ requirements.
System builders – a technical specialist who constructs information systems and components based on the design specifications generated by the system designers.

32. Systems Analysts
Systems analyst – a specialist who studies the problems and needs of an organization to determine how people, data, processes, and information technology can best accomplish improvements for the business.
A programmer/analyst includes the responsibilities of both the computer programmer and the systems analyst.
A business analyst focuses on only the non-technical aspects of systems analysis and design.

33. Where Do Systems Analysts Work?

34. Skills Needed by the Systems Analyst
Working knowledge of information technology
Computer programming experience and expertise
General business knowledge
General problem-solving skills
Good interpersonal communication skills
Good interpersonal relations skills
Flexibility and adaptability
Character and ethics

35. The Systems Analyst as a Facilitator

36. Ringkasan
Metode Pengembangan Sistem
Case tools

37. Metode Pengembangan Sistem

38. Structured Analysis

39. Object Oriented Analysis

40. Agile Methods agile=lincah, quick, easy

41. CASE tools UML-Unified Modelling Language
IBMS-Information Base Modelling System
IDE-Integrated Development Tools
Individual tools
Modelling tools
Documentation tools
Engineering tools
Construction tols (apps gen, screen gen, report gen)

42. Contoh Visible Analyst – Visible system
System Architect – Telelogic IBM company
Rational Software - IBM