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What is cardinality in data modelling?
Cardinality in data modeling, cardinality verifies how the number of occurrences of one object is related to the number of occurrences of another object.
Why software change occurs? Software change happens because of the following reasons. New needs emerge when the software is used. The business environment changes. Errors need
Aggregation between objects Aggregation among objects shows a relationship. It is a whole/part relationship. Aggregation might be implying containment.
Define maintenance. Maintenance is explained as the process in which changes are executed by either modifying the existing system's architecture or by adding latest components
Determine the technique - Parallel With this approach, old and new systems are run together for a time - If new system goes down for any reason, you still have old system
Determine the level 0 and level 1 of DFD External entities provide input data for processing. During processing, some intermediate data is generated. After final processing, fi
Discuss in detail about COCOMO model. Constructive Cost Model. Software cost estimation gives the opportunity to estimate of how much months a man take to develop a softw
explain software document.create the necessary documents for employee management system.
What is a vertical microinstruction? Ans) A vertical microinstruction is a microinstruction that states one of a sequence of operations required to carry out a machine language
Explain in detail the design concepts. Abstraction Functional abstraction Data abstraction Control abstraction Information hiding Every module in
Define Data Flow Diagram. A Data flow diagram is a graphical description that depicts information flow & the transforms that are applied as data move from input to output. T
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