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Q. Classes of data items in a data dictionary?
There are three classes of data items in a data dictionary
1) Data element- It is the smallest unit of data that cannot be meaningfully decomposed further. Example- Employee number and so on.
2) Data structure is a group of data elements forms a data structure.
3) Data Flows as well as Data Stores- data flows are data structures in motion whereas data stores are data structures at rest.
Discuss the design steps of the transform mapping. Re-examine the fundamental model. Re-examine and refine the DFD for the software. Determine the DFD has either the
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Gamma testing is testing of software that does have all the needed features, but did not go by all the in-house quality checks.
Data validity is the reasonableness and correctness of data.
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