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Chapter 5 – System Modeling - Pace

Chapter 5 System Modeling Summary 1 Chapter 5 System Modeling Topics covered Context models Interaction models Structural models Behavioral models model -driven engineering 2 Chapter 5 System Modeling System Modeling System Modeling is the process of developing abstract models of a System , with each model presenting a different view or perspective of that System . System Modeling has now come to mean representing a System using some kind of graphical notation, which is now almost always based on notations in the Unified Modeling Language (UML). System modelling helps the analyst to understand the functionality of the System and models are used to communicate with customers. 3 Chapter 5 System Modeling Existing and planned System models Models of the existing System are used during requirements engineering.

Behavioral models • Behavioral models are models of the dynamic behavior of a system as it is executing. They show what happens or what is supposed to happen when a system responds to a stimulus from its environment. • You can think of these stimuli as being of two types: –Data Some data arrives that has to be processed by the system.

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Chapter 5 – System Modeling - Pace

csis.pace.edu

Data-driven modeling •Many business systems are data-processing systems that are primarily driven by data. They are controlled by the data input to the system, with relatively little external event processing. •Data-driven models show the sequence of actions involved in processing input data and generating an associated output.

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csis.pace.edu

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csis.pace.edu

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