Exam 6: Object Modeling

-The ____________________ indicates when an object sends or receives a message.

System analysts define an object's attributes during the systems design process.

MATCHING Identify the letter of the choice that best matches the phrase or definition.a.class diagram f.activity diagram b.BPM g.CASE tools c.lifeline h.black box d.object relationship diagram i.UML e.state transition diagram j.system boundary -Ensure consistency and provide common links so that once objects are described and used in one part of the design, they can be reused multiple times without further effort.

-All objects within a(n) ____ share common attributes and methods.

Some objects might have a few attributes; others might have dozens.

____ resemble verbs that describe what and how an object does something.

Explain what a class diagram is and in your answer, be sure to explain how a class diagram is like a DFD.

When you create an object relationship diagram, it will serve as a guide as you continue to develop additional diagrams and documentation.

Unlike a DFD, a class diagram is a logical model, which evolves into a physical model and finally becomes a functioning information system.

The same message to two different objects produces the same results.

The number of ____ needed to describe an object depends on the business requirements of the information system and its users.

-The UML notation ____ identifies a zero or many relation.

If ____ are similar to adjectives that describe the characteristics of an object, objects are similar to nouns.

-An object belongs to a group or category called a(n) ____.

-A class can belong to a more general category called a ____.

Just as objects are similar to adjectives, attributes resemble verbs that describe what and how an object does something.

In a state transition diagram, the states appear as rounded rectangles with the state names inside.

After you identify the objects, classes, and relationships, you are ready to prepare an object relationship diagram that will provide an overview of the system.

MATCHING Identify the letter of the choice that best matches the phrase or definition.a.class diagram f.activity diagram b.BPM g.CASE tools c.lifeline h.black box d.object relationship diagram i.UML e.state transition diagram j.system boundary -In this, reading from left to right, the lines show direction and describe the action or event that causes a transition from one state to another.

A sequence diagram ____.