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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.
compare and contrast the advantages of verticle and horizontal structural partitioning?
List any three characteristics of a good SRS. Ans:The SRS should be: Correct , Unambiguous, Complete 1. Correct: An SRS is correct if each requirement stated therein is on
The sudden and finish failure of a computer system or component.
Describe about the Environmental model It indicates environment in which system exists. Any small or big system is a sub-system of a larger system. For illustration, if softw
Why decision tables are used in many cases instead of boundary value and equivalence partitioning analysis? - A decision table is an efficient way to deal with combinations of
which are the invisible registers?
cause effect testing
Explain the process of Black box testing This is applied during the later stage of testing. It enables software developer to derive a set of input conditions which will fully
How can a company improve quality of business information?
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