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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.
how do risc factor affect a spiral model of software development
Define Black box testing Black box testing Black-box test design care for the system as a "black-box", so it doesn't explicitly use knowledge of the internal structure. It ta
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Class diagram: A class diagram in the Unified Modelling Language (UML) is a type of static structure diagram that defines the structure of a system by showing the system's classes
What are the various types of system testing? 1. Recovery testing - is intended to check the system's capability to recover from failures. 2. Security testing - verifies tha
Information engineering is a system engineering approach which is used to describe architectures which enable a business to use data professionally. The intent of information eng
Explain Big-Bang Strategy? Ans) Big-Bang approach is very easy in its philosophy where basically all the modules or builds are constructed and tested independently of each other
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What is Constant? In software or software testing, a constant is a meaningful name that shown a number, or string, that does not alter. Constants are variables that remain the s
compare and contrast the advantages of verticle and horizontal structural partitioning?
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