The Analysts at Techno InfoSystems Are Considering the Four-Model Approach

question 84

Multiple Choice

The analysts at Techno InfoSystems are considering the four-model approach to system development for a new client.
-When data flow diagrams (DFDs) are drawn, which of the following conventions should be followed?

• A) Each context diagram must fit on one page.
• B) Use the same names within each set of symbols.
• C) Do not cross lines.
• D) Use a unique reference number for each process symbol.

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Definitions:

Observational Study

Research methodology where the researcher observes subjects without manipulating any variables.

Experiment

A controlled procedure carried out to discover, demonstrate, or test a hypothesis, involving manipulation of variables to observe the effect on some phenomena.

Absent From Work

Not present at one's place of employment during scheduled working hours, for reasons such as illness, personal matters, or vacation.

Aerobic Exercise

Physical activity that improves the efficiency of the cardiovascular system in absorbing and transporting oxygen, typically performed at moderate intensity over extended periods.