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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.
normalization Explain its forms in brief
Describe the various elements of data design? i. Data object - The data objects are identified and relationships among various data objects are represented using ERD or data di
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Explain an error checklist for inspection in detail.
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What does modality in data modeling indicates? Modality shows whether or not a particular data object must participate in the relationship.
What is SCM? Software Configuration Management is a set of activities carried out for identifying, organizing and controlling alters throughout the lifecycle of computer softwa
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