1 / 15

Pengembangan Sistem Informasi

Pengembangan Sistem Informasi. Williams, B.K, Stacy C. Sawyer (200 7 ). Using Information Technology: A Practical Introduction to Computers & Communications . Seventh Edition, McGraw-Hill, New York . ISBN-13: 978-0-07-110768-6. Learning Outcomes.

loutten
Download Presentation

Pengembangan Sistem Informasi

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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: 978-0-07-110768-6

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

  3. 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. 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. 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 • 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

  11. Systems Development

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

  15. Kesimpulan

More Related