Points in acquiring information system is
- Planning for and justifying IT Applications.
- Strategies for Acquiring IT Applications.
- The Traditional System, s Development Life Cycle
- Alternative Methods and Tools for Systems Development.
- Vendor and Software Selection
Alternative Methods and Tools for System Development
There are a wide variety of alternative methods for system development. The alternative methods include:
Joint Application Design (JAD), a group-based tool used to gather user requirements and creating a system design.
Rapid Application Development (RAD), a system development method that can combine JAD, and icase prototyping tool, to produce a high-quality system.
Agile Development, focus on rapid development and frequent contact user to create software that can accommodate the business needs of the user.
End-User Development, an approach, where end-users in an organization, develop its own application, with the help of non-formal basis of the IT department.
There are several tools for system development, namely:
- Prototyping. Prototyping is an implementation of the analysis, planning, and implementation phases simultaneously, and repeatedly. Users can quickly see the functionality of the system and provide feedback. Moreover, as decision makers learn about the problem. But could lose progress on repetition.
- Integrated Computer-Assisted Software Engineering Tools. from Reference. Computer-assisted software engineering system facilitates the design, implementation, and execution of applications in cooperative processing environments. Design tools create, store, retrieve, and edit the system specifications in a repository
- Component-Based Development. System as a result of assembling components, component as entities resusable, and upgrading the system by modifying or replacing components.
- Object-Oriented Development. a way software development and information systems based on the abstraction of objects that exist in the real world. Brooks (1987) quoted from the book Object Oriented Modeling And Design writings of James Rumbaugh suggested that the hardest part of software development and information systems is the analysis phase where we must analyze very complicated problem, which we encounter in the real world and make abstraction of the problem was , then do the design so that later can be implemented quickly and accurately on a computer (both hardware and software) into a system or software that fits the needs and expectations of users.
Vendor and Software Selection
There are stages in the selection of vendors and applications, namely:
1. Identify potential vendors.
2. Determining the evaluation criteria
3. Mengecaluasi vendor and package
4. Select the vendor and package
5. Contract negotiations
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