​​Chapter 9 True/False

Process specifications show the decision-making logic and formulas necessary to transform process input data into output.

t

While process specifications produce a precise description of what is accomplished, they are not detailed enough to validate the system design.

f

Process specifications are always produced for input and output operations, such as a read or write operation.

f

Process descriptions may exist on a form but not within a CASE tool repository.

f

Process logic may be represented as either structured English, a decision table, a decision tree, or a formula.

t

Selection data dictionary entries become IF...THEN...ELSE structured English statements.

t

Iteration data dictionary entries become simple structured English statements in a sequence.

f

When structured decisions are not complex, an appropriate technique for analyzing the decision process is the use of semistructured English.

f

Besides the obvious advantage of clarifying the logic and relationships found in human languages, structured English has another important advantage as a communication tool.

t

If communication is unimportant, structured English is a viable alternative for decision analysis.

f

Decision trees are most often drawn on their side, with the root of the tree on the left-hand side paper, branching out to the right.

t

It is useful to combine conditions and actions when drawing decision trees.

f

A square node indicates a condition, and a circle indicates an action.

f

In drawing the tree, identify all conditions and actions and the order and timing of these.

t

Use structured English when complex combinations of conditions, actions, and rules are found.

f

Use decision tables when there are many repetitious actions.

f

Use decision trees when the sequence of conditions and actions is critical.

t

All the process specifications for the entire data flow diagram are consolidated and included in the specification packet given to the computer programmer.

f

Business rules are the set of procedures, conditions or formulas that allow a corporation to run its business

t

Use structured English when not every condition is relevant to every action.

f

Use decision trees when there are many repetitious actions.

f

Use decision tables when complex combinations of conditions, actions, and rules are found.

t

Use decision trees when not every condition is relevant to every action.

t

Use decision tables when you require a method that effectively avoids impossible situations, redundancies, and contradictions.

t

One major advantage of using decision tables over other methods is that tables help the analyst ensure completeness.

t

In systems analysis, trees are used mainly for identifying and organizing conditions and actions in a completely structured decision process.

t

The use of diagrams makes the decision tree more readable when one thinks of a circle as signifying IF when the square means THEN.

f

In drawing the tree, begin building from left to right while making sure you are complete in listing all possible alternatives before moving over to the right.

t

Use decision trees when not every condition is relevant to every decision.

f

A goal of producing process specifications is to obtain a precise description of what is accomplished.

t

Business rules are the set of procedures, conditions or formulas that allow a corporation to run its business.

t

Use decision trees when there are many repetitious actions.

f

Use decision tables when complex combinations of conditions, actions, and rules are found.

t

Use decision tables when the sequence of conditions and actions is critical.

f

Use decision trees when you require a method that effectively avoids impossible situations, redundancies and contradictions.

f

Use decision trees when not every condition is relevant to every action (the branches are different).

t

Use decision trees when communication to end users is important.

f

The lower half of a decision tree contains the actions to be taken on the left and the rules for executing the actions on the right.

f

Decision trees are useful when it is essential to keep a string of decisions in a particular sequence.

t