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 entity, What is Entity  It is most elementary thing of an organ...

What is Entity  It is most elementary thing of an organisation about which data has to be maintained. Each entity has unique identity. It's represented by rectangular box with

Mention some of the drawbacks of rad model, Mention some of the drawbacks o...

Mention some of the drawbacks of RAD model. Not suitable for largescale projects. Commitment of developers & customers are required. Not appropriate when technical ris

What are the different architectures developed during bpe, What are the dif...

What are the different architectures developed during BPE? Data architecture framework for the information requires of a business. Application architecture incorporates the

Hotel reservation, how to make pseudo code of hotel reservation

how to make pseudo code of hotel reservation

3809ICT, I need help on and assignment that is due on monday can you help ?...

I need help on and assignment that is due on monday can you help ?

How does the risk factor affect the spiral model, Q. How does the risk fact...

Q. How does the risk factor affect the spiral model of software development? Ans: Risk Analysis phase is the most vital part of Spiral Model. In this phase all probable (and

What is the full form of eva, What is EVA? Earned Value Analysis is a ...

What is EVA? Earned Value Analysis is a technique of performing quantitative analysis of the software project. It gives a common value scale for each task of software projec

Explain installation testing, Installation testing is testing full, partial...

Installation testing is testing full, partial, upgrade, or install/uninstall processes. The installation test for a release is conducted with the aim of demonstrating production re

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