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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.
What is a software version? A software version is a start release (or re-release) of a software associated with a done compilation (or recompilation) of the software.
Justify the term "Software is engineered"?
Software for Searching Online Retrieval Systems : Each of the major online systems has its own software which supports its activities oil a host computer. Many of these hosts h
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