Exam 5: Data and Process Modeling

In a DFD, the Gane and Sarson symbol for an entity is a ____.

Systems analysts call an entity that supplies data to the system a sink. _________________________

A(n) ____________________ uses various symbols to show how the system transforms input data into useful information.

Structured English might look familiar to programming students because it resembles ____, which is used in program design.

Whether to use a decision table or a decision tree often is a matter of personal preference.

-Among the symbols in the accompanying figure, a(n) ____________________ is used to represent data that a system stores because one or more processes need to use the data at a later time.

A decision tree is read from left to right, with the conditions along the various branches and the actions at the far left. _________________________

MATCHING Identify the letter of the choice that best matches the phrase or definition. -Ensures that the input and output data flows of the parent DFD are maintained on the child DFD.

Using ____, an analyst starts with an overall view, which is a context diagram with a single process symbol, and then the analyst creates diagram 0, which shows more detail.

A(n) ____________________ is a data flow in which the same data travels to two or more different locations.

The primary purpose of pseudocode is to describe the underlying business logic of code. _________________________

Two data stores can be connected by a data flow without an intervening process.