Chapter9_answers - Exam Name_ TRUE/FALSE. Write 'T' if the...

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Exam Name___________________________________ TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Process specifications show the decision - making logic and formulas necessary to transform process input data into output. 1) 2) While process specifications produce a precise description of what is accomplished, they are not detailed enough to validate the system design. 2) 3) Process specifications are always produced for input and output operations, such as a read or write operation. 3) 4) Process descriptions may exist on a form but not within a CASE tool repository. 4) 5) Process logic may be represented as either structured English, a decision table, a decision tree, or a formula. 5) 6) Selection data dictionary entries become IF. ..THEN. ..ELSE structured English statements. 6) 7) Iteration data dictionary entries become simple structured English statements in a sequence. 7) 8) When structured decisions are not complex, an appropriate technique for analyzing the decision process is the use of semistructured English. 8) 9) Besides the obvious advantage of clarifying the logic and relationships found in human languages, structured English has another important advantage as a communication tool. 9) 10) If communication is unimportant, structured English is a viable alternative for decision analysis. 10) 11) It is important to develop decision tables in a logical, systematic approach. 11) 12) Decision tables can become very burdensome because they grow rapidly as the number of conditions and alternatives increase. 12) 13) If conditions are mutually inclusive, they can be written in extended - entry form. 13) 14) The number of decision table columns and rows necessary decreases while the understandability decreases. 14) 15) 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. 15) 16) It is useful to combine conditions and actions when drawing decision trees. 16) 17) A square node indicates a condition, and a circle indicates an action. 17) 1
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18) In drawing the tree, identify all conditions and actions and the order and timing of these. 18) 19) Use structured English when complex combinations of conditions, actions, and rules are found. 19) 20) Use decision tables when there are many repetitious actions. 20) 21) Use decision trees when the sequence of conditions and actions is critical. 21) 22) The logic of a parent process shows the sequence that the child diagram processes must be executed in. 22) 23) All the process specifications for the entire data flow diagram are consolidated and included in the specification packet given to the computer programmer. 23)
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This note was uploaded on 01/11/2012 for the course ACCOUNTING ACOM taught by Professor Sanchocastro during the Spring '11 term at De La Salle University.

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Chapter9_answers - Exam Name_ TRUE/FALSE. Write 'T' if the...

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