Approaches to System Development. Chapter 3. Methodologies, Models, Tools and Techniques. A system development methodology –provides guidelines to follow for completing every activity in the systems development life cycle.
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some models used in system development
--Flowchart, DFD, ERD, Structure charts
Use case diagrams, class diagrams, seq.
some models used to manage the development process
--PERT charts, Gantt chart organ. Hierarchy chart
--Financial analysis models –NPV, ROI
-smart editors, C-S help, debugging tools
CASE (Computer-Aided System Engineering)
Tools -- Help the analyst create the important
Relational database design
Structured analysis and design
Information Engineering (IE) is a popular
variation to structured development
as a collection of interacting objects
that work together to accomplish tasks