The Advantage of a Physical Data Flow Diagram (DFD) Versus

question 77

True/False

The advantage of a physical data flow diagram (DFD) versus a logical data flow diagram (DFD) is that we can concentrate on what activities a system is performing without having to specify how, where or by whom.

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Definitions:

Wilcoxon Rank

A nonparametric test that compares two paired groups to determine if their population mean ranks differ significantly.

Alternative Hypothesis

The hypothesis that proposes there is a statistically significant difference between two data sets or a deviation from the null hypothesis.

Spearman Rank

A method that non-parametrically quantifies the rank correlation to determine how well a monotonic function can depict the relationship between two variables.

Precipitation

Any form of water - liquid or solid - falling from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.