Exam 7: Structuring System Process Requirements

________ is the extent to which information contained on one level of a set of nested data flow diagrams is also included on other levels.

A file folder containing orders is represented on a data flow diagram as a:

Referencing a decision table,an action is provided for each rule.

An arrow on a data flow diagram represents a:

A level-0 diagram is a data flow diagram that represents a system's major processes,data flows,and data stores at a high level of detail.

A context diagram shows the scope of the organizational system,system boundaries,external entities that interact with the system,and major information flows between entities and the system.

The lowest level of decomposition for a data flow diagram is called the:

An individual wishes to withdraw cash from an ATM machine.Prepare a decision table to represent this situation.Please note any assumptions that you make.

Assume Process 7.4 produces a data flow and that Process 7.2 must be ready to accept it;we would say that these processes are physically linked to each other.

A modeling technique that allows you to represent a set of conditions and the actions that follow from them in a tabular format best describes:

A decision table is simplified by:

What is gap analysis? Why is gap analysis useful?

On a data flow diagram,an arrow represents an action,such as calculating an employee's pay.

Data cannot move directly from a source to a sink.

As a rule of thumb,no data flow diagram should have more than about seven processes on it,because the diagram would be too crowded and difficult to understand.

The lowest level of DFDs is called:

The lowest-level data flow diagrams are called level-0 diagrams.

The five guidelines for drawing DFDs include ________,________,________,the ________,and ________.

A customer order is represented on a data flow diagram as a data flow.

The origin and/or destination of data,sometimes referred to as external entities defines: