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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
Explain the term- Phased In this approach only part of the new system is introduced and only when it proves to work satisfactorily is the next part introduced and so on, unti
Give the procedure of the Delphi method. 1. The co-ordinator presents a specification and estimation form to all experts. 2. Co-ordinator calls a group meeting where the exp
system design goals
Describe Operational Testing? Ans) Testing done by the end user on software in its normal operating environment.
System flowcharts System flowcharts are used to demonstrate how all the components in a system link together (for example input, storage, output, processing etc.). They are ver
Re-Engineering cost factors:- 1) The amount of the software to be re-engineered. 2) The tool support available for re-engineering. 3) The extent of the data conversion
i want to select topic to my ethical issues assignment can u propose reasonable topic?
What is a boundary value analysis? A boundary value analysis is a testing method in which the elements at the edge of the domain are selected and tested. It is a test case desi
Demonstrate the Sequence of prototyping Sequence of prototyping is demonstrated in following Figure.
What is software architecture? The software architecture of a program or computing system is the structure or structures of the system, which comprises software methods, the e
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