- evaluate objects created in the analysis phase
- helps identify more objects needed for overall solution
- refines existing object properties and methods
- specify class dependencies
- establishes relations between objects
- determines appropriate classes to represent respective objects
- relationships:
- inheritance - allows a class to inherit the properties and methods of another class
- containment - an object of one class becomes a member object of another class
- use - provides information on the many classes a class could use as well as inform us of how it will do so.
- relationships:
- create a class hierarchy
- allows for the reuse of data and functions already established
- new classes can be formed from existing ones
- class design
- management functions: how to create or destroy objects
- implementation functions: operations performed upon class data types
- access functions: this is a function for accessing internal properties of a class
- utility functions: how to handle errors, testing, or access control
- determine the "driver" program
- i.e. the
main()function in C++ - receives user input
- creates objects from class definitions
- displays output based on user's input requirements
- makes calls to member? functions
- i.e. the
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steps in object-oriented design
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