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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.
Q. What is the need for obtaining ISO 9000 certification? The need for obtaining ISO 9000 certification :- Confidence of customers in an organization improves when orga
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What does it mean by software re-engineering ?
Describe the method of Technical documentation This usually comprises: - Program listing/coding - Programming language(s) used - Algorithm/Flowchart - Purpose o
What is structured programming and why is it important? Structured programming is a programming which was coined in the late 1960's to mean programming without using go to stat
a) There are four steps or activities in needs engineering: elicitation, specification, validation, and negotiation. Briefly explain the task of every of the four steps. Why needs
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To develop software of lasting quality you have to lay down a solid architectural foundation that is resilient to change. Modelling is at the heart of the development of good quali
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