Exam 8: Class and Method Design

Invariants model constraints that must always be true for all instances of a class.

Class cohesion addresses the cohesion within each individual method of a class.

_____ means having the ability to send the same message to different objects, which can be interpreted differently by different objects.

What are the two types of coupling in object-oriented systems?

Essentially, all OCL expressions are simply a declarative statement that evaluates to either being true or false. If the expression evaluates to true, then the constraint has been _______________.

Using an attribute to store the value of a computation is the use of a derived attribute.

A listing of the items that trigger the functionality in the program is known as events.

Many project teams are too quick to jump into writing code for classes without first designing them.

The order of the code in a method is critical for the method to execute correctly. This method has position connascence.

Describe the concept of inheritance. How does this impact the development of object-oriented systems?

_____ suggests that only the information required to use an object should be available outside the object.

Functional method cohesion is the "best" type of method cohesion.

UML's Object Constraint Language is a formal language.

Clicking a mouse can be an event.

The audience for pseudocode is the _____.

Method signatures, in conjunction with frameworks, class libraries and design patterns, offer excellent opportunities for reuse.

High levels of inheritance coupling in a system are always good and desirable.

What is coupling? Is this desirable or undesirable in a system? Why?

One of inheritance abuses in Object-oriented design is the inheritance was used to implement an association relationship.

Fan-out refers to the number of attributes passed by one object to another.