Exam 7: Using Data Flow Diagrams

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When the data flow in and out of a parent process do not match the data flow in or out of a child diagram, it is called:

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D

A CRUD matrix is used to show:

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A use case:

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A CRUD matrix shows where records are added, changed, used, and deleted from a file.

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By using combinations of only four symbols, the systems analyst is able to create a pictorial depiction of data flows that eventually can provide solid system:

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More detail is achievable through using a process called "exploding the diagrams."

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Why is partitioning useful when designing a Web site?

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The data flow approach enables the systems analyst to better understand the interrelatedness of ________ and ________.

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Linear data flow from process to process is normal in higher level data flow diagrams.

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A logical data flow diagram shows how the business operates.

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Processes that transform data should be named with a noun which indicates the data that has been transformed.

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Which of the following is not an advantage of using a physical model?

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Data flow diagrams must be drawn working from left to right on the page.

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Balanced decomposition is when the data flow in or out of a child diagram does not match the data flow in or out of a parent process.

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Ajax is a technique used to obtain data from a server and update large amounts of data using UML.

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Base elements are elements that are created by a process using a formula or some logic.

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Having separate Web forms to collect transaction data means that:

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The process of creating a simple data flow diagram fragment for each unique system trigger is called:

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An arrow is used to depict an external entity that can give and receive data from the system.

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The advantage of building data flow diagrams based on events is that:

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