Explain about the e-r diagram, Software Engineering

Assignment Help:

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.

 

 


Related Discussions:- Explain about the e-r diagram

What is the work product of software design process, What is the work produ...

What is the work product of software design process and who does this? A design model that encompasses architectural, interface, component level and their representations is th

What is code coverage and code inspection, What is Code Coverage and Code I...

What is Code Coverage and Code Inspection - This is an analysis method which verifies which parts of the software have already been covered by the test case suite and which are

Extract Caracthers froplat recognition, how to extract the characters from ...

how to extract the characters from the car plate image to the car plate recognition. matlab code

Path & Path Production, Path & Path Production, Syntax testing, Computer En...

Path & Path Production, Syntax testing, Computer Engineering Take the following flow graph and use the procedure in chapter 8 to derive an equivalent regular expression. Show all i

What is heuristics testing, What is Heuristics Testing? Ans) Heuristics ...

What is Heuristics Testing? Ans) Heuristics Testing is the failure-directed testing.

State about the software requirements specification, State about the Softwa...

State about the Software Requirements Specification This document is produced as output of requirement analysis.  Requirement analysis involves obtaining a clear and thorough

What is random testing, What is Random testing? Random testing is also ...

What is Random testing? Random testing is also referred as adhoc testing. As the tester can give the out of coverage data and the stability of an application is checked, whethe

Explain the process of prototyping, Explain the process of Prototyping ...

Explain the process of Prototyping Prototyping is a process which enables developer to create a small model of software. IEEE 610.12 standard defines prototype as a preliminary

What is quality control, What is quality control? Ans) Quality control m...

What is quality control? Ans) Quality control means to preserve the quality of product by measuring their content , different physical parameters.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd