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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.
Write definition of DFD? Data Flow Diagram supplies the information flow and the transforms that are used on the data as it moves from input to output.
What are the assumptions of the execution-time component model? The execution-time component is based on the several assumptions: (1) Tests show the environment in which the
Discuss in details the design steps in transaction mapping. Re-Check the fundamental model. Re-check and refine the DFD for the software. Determine the DFD has either
A test method satisfying coverage criteria that needs each decision point at every possible branch to be implemented at least once.
What is the meaning of System Engineering? System Engineering means designing, deploying, implementing and operating systems which include hardware, software and user.
It should include all the theory that you need to complete the requested design, and all the simulation documents that you produce after synthesizing the circuit. Briefly, your rep
Q. What is Control coupling? Control coupling: Module A as well as B are said to be control coupled if they communicate by passing of control information. This is typically a
using a dfd and a processing narrative,describe computer based system that can distinct transform flow characteristics.Define flow boundaries map the dfd into a software architectu
Discuss iterative waterfall Iterative waterfall model a) Requirement collecting phase in which all requirements are specified. b) The design phase is responsible for cr
What are the important points to do software design The below points must be kept in mind when performing the design: i) Practicality: This ensures that system is stable
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