week 9 System Modeling

0 11 Datenblatt up804653

Lernen beginnen

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Frage		Antworten
Waht is System Modeling Lernen beginnen		The process of developing abstract models of a system, with each model presenting a different view or perspective of that system (Sommerville)
What are the 4 perspectives of a system? Lernen beginnen		External, Interaction, Structural, Behavioral.
explain external system perspective Lernen beginnen		External: context or environment
Explain interaction system perspective Lernen beginnen		system-environment, component-component interactions
Explain structural system perspective Lernen beginnen		organization of a system or the structure of the data being processed
Explain behavioural system perspective Lernen beginnen		Behavioral: dynamic behavior of a system and how it responds to events
what tools do we have for modeling systems Lernen beginnen		Standard modeling language for object-oriented modeling: Activity diagram, Use case diagram, Sequence diagram, Class diagram, State diagram.
What is a context model Lernen beginnen		Early on, decide on the system boundaries, Functionality that should be included in the system, Functionality provided by the system’s environment.
What are interaction models? Lernen beginnen		User interaction, Interaction between system developed and other system(s), Interaction between components of the system.
explain Interaction Models: Use Cases Lernen beginnen		Model interaction between a system and external actors, A use case is a simple scenario that describes what a user expects from the system
explain Sequence Diagrams Lernen beginnen		Model interactions between system components (possibly external agents as well), Show the sequence of interactions that take place during a particular use case.

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