|
Traditional development methodology of information systems is
either phrase-oriented or developer-oriented. In such case, the
final system usually is not what users want. Besides this,
there is no good design tool for users to easily express their
needs, then to implement a runnable system. In this thesis we
develop an end-user computing(EUC) model, and tool as well. The
EUC model adopts both advantages of object-oriented methodology
(OOM) and structured methodology(SM). Users can choose either
top-down or bottom-up approach when designing a system.
Extended Data Flow Diagram(EDFD) and Finite State Machine(FSM)
which together form an executable requirement language are used
to describe customer's needs. In such situation, written
requirements become runnable immediately. Also included in this
paper are detail descriptions of the EUC tool's implementation.
|