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

Explain static multivariable model, Q. Explain Static multivariable model? ...

Q. Explain Static multivariable model? They relies on several variables representing various aspects of the software development environment for example methods used and user p

Define about the software development life cycle, Define about the Software...

Define about the Software Development Life Cycle The different steps (known as phases) that are adopted in development of this process are collectively called as Software Devel

Explain about the iterative enhancement model, Iterative Enhancement Model ...

Iterative Enhancement Model This model was developed to remove disadvantages of waterfall model. In this model, phases of software development remain the same however the cons

What is fault, A manifestation of an error in software. A fault, if encount...

A manifestation of an error in software. A fault, if encountered, might cause a failure.

Time line chart, what is time line chart for travel management?

what is time line chart for travel management?

Pert chart, Well establish garment factory (large scale- one of country big...

Well establish garment factory (large scale- one of country biggest) received order of 40,000 fabric to complete within 12 weeks. (This is well profitable order which cannot be ign

Explain the throw away prototype, Explain the Throw away prototype I...

Explain the Throw away prototype In this technique, prototype is discarded once its purpose is fulfilled and final system is built from scratch. Prototype is built quickly t

Task set, task set for a project plan

task set for a project plan

Iterative enhancement model, Iterative Enhancement Model Iterative Enha...

Iterative Enhancement Model Iterative Enhancement Model: This model has the similar phases as the waterfall model, but with fewer restrictions. Normally the phases happen in th

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