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

Describe requirement engineering, Define Requirement Engineering . Requi...

Define Requirement Engineering . Requirement Engineering is a process in which all of the activities required to maintain and create a system requirements document. The four

What is waterfall model, Waterfall is a model of the software development p...

Waterfall is a model of the software development process in which the idea phase, requirements phase, design phase, execution phase, test phase, installation phase, and checkout ph

What is code complete, Code Complete - Phase of development where func...

Code Complete - Phase of development where functionality is executed in entirety with only bug fixes remaining. - All functions from the functional specifications are alrea

Use cases, 1. Perform a requirements analysis for the Case Study. Express t...

1. Perform a requirements analysis for the Case Study. Express the results using the following artefacts:     a. A use case diagram for the functional requirements of the entire

What is project scheduling, Question 1 What is project management? Explain...

Question 1 What is project management? Explain various activities involved in project management Question 2 Describe the following with respect to Estimation and Budgeting of

What is bottom-up strategy, Bottom-up approach, as the name suggests, is th...

Bottom-up approach, as the name suggests, is the differing of the Top-down method. This process begins with building and testing the low level modules first, working its way up

Explain about spiral model, Q. Explain about Spiral Model? The Spiral m...

Q. Explain about Spiral Model? The Spiral model is one of the well-liked model used for large projects. This model was projected by Boehm in 1988 and it focuses on minimizing t

What is parameter, In software QA or software testing, a parameter is an it...

In software QA or software testing, a parameter is an item of information - like a name, number, or selected option - that is approved to a program, by a user or another program. B

List the task regions in the spiral model, List the task regions in the Spi...

List the task regions in the Spiral model. Customer communication - In this region it is suggested to make customer communication. Planning - All planning activities are car

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