Object-oriented design steps

1. Extract the class according to the requirement description

The extraction class information can refer to the noun and verb information in the requirement description, extract various kinds of attributes and methods, compare the properties and methods of each class, extract the public properties and methods, and then extract the parent class.

2. According to the requirements of the requirements, can build class factories, using polymorphic technology, flexible use of various classes.

3. According to the logic request, extracts the business class, mainly carries on the data operation to each object.

4. According to the Man-machine interface operation (System prompts the information), extracts the UI class, namely the test class, completes the user and the program interaction.

5. Optimize the design and comb the running process.