week 9 System Modeling

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学び始める

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質問		答え
Waht is System Modeling 学び始める		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? 学び始める		External, Interaction, Structural, Behavioral.
explain external system perspective 学び始める		External: context or environment
Explain interaction system perspective 学び始める		system-environment, component-component interactions
Explain structural system perspective 学び始める		organization of a system or the structure of the data being processed
Explain behavioural system perspective 学び始める		Behavioral: dynamic behavior of a system and how it responds to events
what tools do we have for modeling systems 学び始める		Standard modeling language for object-oriented modeling: Activity diagram, Use case diagram, Sequence diagram, Class diagram, State diagram.
What is a context model 学び始める		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? 学び始める		User interaction, Interaction between system developed and other system(s), Interaction between components of the system.
explain Interaction Models: Use Cases 学び始める		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 学び始める		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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