Information Systems Modelling and Design with

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Information Systems Modelling and Design with
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Objectives

• Getting acquaint with the visual modelling
  language UML (Unified Modelling Language)
• Able to design an information system using UML

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Study matter

• Books
• Fowler Scott UML distilled 2nd ed
• Booch, Rumbauch Jacobson The Unified Modeling
  Language User Guide
• Web
• www.omg.org
• www.popkin.com

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UML? 1

• UML is the successor to the wave of
  object-oriented analysis and design (OOAD)
  methods. The methods of Booch, Rumbaugh and
  Jacobson (de 3 amigos) are merged. UML
  represents the culmination of best practices in
  practical object-oriented modelling.
• UML offers a standard way to write a systems
  blueprints, including conceptual things such as
  business processes and system functions as well
  as database schemas.

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UML? 2

• UML is a modelling language, a notation used to
  express and document designs.
• UML proposes a standard for technical exchange of
  models and designs.
• UML also defines a meta-model, a diagram that
  defines the syntax of the UML notation

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UML Model Views

• Use Case Modelling
• Requirements
• Use Case diagrams
• Structural Modelling
• Static structure diagrams
• Class diagrams
• Object diagrams
• Behaviour Modelling
• State diagrams
• Interaction diagrams
• Sequence diagrams
• Collaboration diagrams
• Activity diagrams
• Implementation diagrams

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UML what we will cover

• Use cases
• Documenting the systems behaviour from the
  users viewpoint, requirements capture
• Class diagrams
• Describing the type of objects in a system and
  the static relationships between them
• Activity diagrams
• Describing the sequencing of activities with
  support for both conditional and parallel
  behaviour

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Relationship between diagrams
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UML steps

1. Examine the necessities of the information system
   ? use cases
2. Object-oriented domain analysis ? decomposition
   of the problem field in concepts, attributes and
   associations that may be of relevance to the
   information system

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End of Intro