week 9 System Modeling

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öğrenmeye başla

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