System Modeling Flashcards
What kind of diagrams are used for an OOP system model?
Class diagrams
What is a relationship between classes called?
Association
How do you identify that an association between classes is 1-to-1 or 1-to-many on UML?
You can put “1”, or a specific number, or “1..*” (or specify a number replacing *, meaning it can be “up to” that number) next to the elements above the line connecting them
What is Generalization?
Another way of saying Generics/inheritance. A technique to manage complexity.
In UML, how do you represent inheritance (Generalization)?
An arrow pointing to a superclass.
What is a word describing Generics or inheritance?
Generalization
What do you call multiple associations? How do you represent this in UML?
Aggregation Association. Multiple classes with a line with a diamond (actually a rotated square) touching the class containing those classes.
What are Behavioral Models, and what are the UML diagrams called
Models of the dynamic behavior of a system as it is executing; responses to stimuli. The stimuli is either data or events. Activity Diagrams in UML are used for these.
What is Event-Driven Modeling, and what are the UML diagrams called
For developing state machines, assuming there is a countable number of states the system can be in. Not really used for systems that have custom user data. The UML diagrams are called State Diagrams.
In a State Diagram, what is a state called that is hiding details due to its complexity?
A Superstate
What is MDA
Model-Driven Architecture. Uses UML diagrams to describe a system at multiple levels of abstraction.
What are the 3 types of models
Computation Independent Model (CIM)
Platform Independent Model (PIM)
Platform Specific Model (PSM)
What is a CIM
Computation Independent Models, also called Domain Models, are used to abstractly and contextually describe a system’s requirements without detailing any structure.
What makes MDA tough?
You have to have translators, which can be slow and expensive.
What is a PIM
Platform Independent Models describe the operation and logic of a system without being specific about its implementation, like not being specific about which programming language to use.
What is PSM
Platform Specific Models are specific to implementation, being specific about which framework to use for example
