week 9 System Modeling

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