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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.
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Discuss iterative waterfall Iterative waterfall model a) Requirement collecting phase in which all requirements are specified. b) The design phase is responsible for cr
#question.hatley pirbhai .
(a) Draw an Entity-Relationship model for the relational schema given in the Appendix. Show all the entities, relationships, relationship names, and attributes and also underline
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Which type of software must not be automated? Following types of software must not be automated: - Incomplete/Unstable software since they are still undergoing changes -
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