Different views of information system (IS) structural view (data, hardware, software/application, procedures) Object view Services view (user interface, data management, data processing/functionality) Architecture view (tiers. modules) MIS Systems Analysis & Design Summary
Systems analysis: - Analyzing organizational tasks/processes either supported or not supported by electronic or pre-electronic IT - Deliverable: Logical design The Emphasis of the Course Systems Design (exercises, term paper)
Data Process/Functionality Logic (control, decisions) User Interface Object Interactions Class/Object Diagram Activity Diagram Use Case Diagram Sequence Diagram Dialogue Representations x x x xx x x x x x x x = primary purpose a diagram is invented for = provides hints/indications Systems Analyst’s Toolbox: System Aspects & Diagramming Tools Use Case Description x x
Challenges in Systems Analysis What is in the system? Where is system boundary? Process thinking (Activity Diagram) vs. Non-process thinking (Use Case Diagram) Focus on details and completeness Capability to switch between big and small picture Capability to read (and sometimes write) different notation schemes.
Some Highlights MIS Perspective emphasized: - IS informs in support of organizational & management purposes - System examples rooted in specific organizational contexts; focus on end-users - Various systems studied Technical perspective: - Vocabulary, analytical skills, graphical expression - Hands-on experience: iGrafx, Visio, MS Project That’s All Folks!