1. Pengembangan Sistem Informasi
Williams, B.K, Stacy C. Sawyer (2007). Using Information Technology: A Practical Introduction to Computers & Communications. Seventh Edition, McGraw-Hill, New York. ISBN-13:

2. menjelaskan enam langkah dalam pengembangan sistem informasi (C2)
Learning Outcomes
Pada akhir pertemuan ini, diharapkan mahasiswa
akan mampu :
menjelaskan enam langkah dalam pengembangan sistem informasi (C2)

3. Six phases of systems analysis & design
Outline Materi
The purpose of a system
Starting the project
Six phases of systems analysis & design

4. Systems Development
Organizations can make mistakes, and big organizations can make really big mistakes
Murphy’s Law: Whatever can go wrong, will go wrong,
and at the worst possible time
A system
A collection of related components that interact to perform a task in order to accomplish a goal
Systems Development
6-phase process of gathering information about system requirements and using that to develop a new system that improves productivity
Warning! Road Out!

5. The three kinds of users of a project are:
Systems Development
The three kinds of users of a project are:
Users
The new system must ALWAYS be developed in consultation with the people who will be using the completed system
Management
Managers within an organization should be consulted about the system, as they control the budget and resources
Technical staff
The Information Systems or IT staff must be involved so they can make sure the technology is there

6. Systems Development Systems Analyst
An information specialist who performs systems analysis, design, and implementation
His or her job is to study the information and communications needs of an organization and determine what changes are needed to deliver better information to the people who need it

7. The 6 phases of systems analysis & design are:
Systems Development
The 6 phases of systems analysis & design are:
Preliminary investigation
Systems analysis
Systems design
Systems development
Systems implementation
Systems maintenance
Information systems are frequently revised and upgraded
Steps in the cycle often overlap

8. Systems Development Phase 1: Conduct a preliminary investigation
Conduct a preliminary analysis
Propose alternative solutions
Interview people within the organization
Study what competitors are doing
Decide to leave the system as is, improve it, or develop a new system
Describe costs and benefits
Submit a preliminary plan with recommendations
This should be a written report
Get management approvals for next phase

9. Systems Development Phase 2: Analyze the system Gather data
Interview employees and managers
Develop, distribute, analyze questionnaires
Review current written documents
Observe people and processes at work
Analyze the data
Use system modeling tools, such as CASE tools
Create a data flow diagram to show how data flows through the system
Write a report and get approvals for next phase
Document how the current system works
Document problems with the current system
Describe the requirements for the new system

10. Systems Development

11. Systems Development Phase 3: Design the system
Notice that you don’t design the new system until you have done phase 2 since that establishes the requirements it must meet!
Do a preliminary design
Often involves prototyping
Do a detail design, showing:
Input requirements
Output requirements
Storage requirements
Processing requirements
System controls
Backup
Write a report and get approvals for next phase

12. Phase 4: Develop the system
Systems Development
Phase 4: Develop the system
Develop or acquire the software
Acquire and integrate the hardware
Test the system
Unit testing
Systems testing with both analysts and end-users
End-user testing is critical, as they don’t know the software and will show the developers where they forgot something

13. Phase 5: Implement the system
Systems Development
Phase 5: Implement the system
Choose a strategy to convert to the new system
Direct implementation
Parallel implementation
Phased implementation
Pilot implementation
Train the users
Document the system
Give classes or train the trainers

14. Phase 6: Maintain the system
Systems Development
Phase 6: Maintain the system
Perform periodic evaluations
Make changes to the system based on new conditions
Document those changes

15. Kesimpulan