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Adanda for today: Problem in systems development PS1. Overview af the semester The history of systems development Problems in systems development.

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Presentation on theme: "Adanda for today: Problem in systems development PS1. Overview af the semester The history of systems development Problems in systems development."— Presentation transcript:

1 Adanda for today: Problem in systems development PS1. Overview af the semester The history of systems development Problems in systems development

2 Semester walktrough System Development and Project Management Literature; –Professional System Development. Finn Kensing a.o. –Applying UML and Patterns. Graig Larman –Notes (Test, User interface, Database)

3 The history of systems development History of systems development –Phase 1: the 40’ and the 50’ties –Phase 2: the 60’ties –Phase 3: the 70’ties –Phase 4: the 80’ties –Phase 5: the 90’ties –The scandinavian model

4 The history of systems development Base technologyUsage Phase st generation machines / tubes Technichal calculations Phase 2 60’erne 2nd generation machines / tape stations /SSI and LSI Automatisation of standard routines Phase 3 70’erne 4th generation Mainframe / terminal / VLSI Information systems / Process controle Phase 4 80’erne Micro computers / network Computer technology to all Phase 5 90’erne Internet / terminal servers Total integration

5 The Scandinavian model Union <> New technology End user participation Objectoriented view on systems development (Simula 67, C++)

6 Professionel System Development Chapter 1. Typical problems. Insufficient analysis (Breaks Boeing) Unreflected design process (Danish defence) No baselines (SLV road control) Incomplete test (Digiquant) Many postponements (DSB Danish railroad) Narrow communication lines (Statens Serum Institute) Need for professional working practices (Many new employees)

7 Ideal and reality

8 Why not? -The users don’t know what their own goal is -New knowledge trough the system development process -High complexity

9 Situation an uncertainty Routine Problem solving Problem setting

10 The project and its enviroment The situation which arise in the project The working practices which are applied in the project The conditions which affect the course of the project


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