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 are the problems in comes in SRS, What are the Problems in comes in SR...

What are the Problems in comes in SRS There are numerous features which make requirements analysis difficult. These are explained below: 1. Complete requirements are diffic

Explain the prototyping approaches in software process, Explain the prototy...

Explain the prototyping approaches in software process. Two approaches i. Evolutionary prototyping - In this approach of system development, the initial prototype is prepare

Explain the process of software testing, Explain the process of Software Te...

Explain the process of Software Testing Testing is the process of running the software on manually created inputs with intention to find errors. In process of testing, an atte

Compare CMM with ISO 9001, Q. Compare CMM with ISO 9001 ? 1: Managemen...

Q. Compare CMM with ISO 9001 ? 1: Management responsibility: ISO 9001 needs that the quality policy be defined and documented and understood as well implemented and maintaine

Define the failure intensity of the basic model, Q Define the failure inten...

Q Define the failure intensity of the Basic model? Ans: The failure intensity of the Basic model is λ (μ) = λ 0 [1 - μ / v 0 ] Where λ 0 is the initial failure inten

Srs, Why SRS document is also called as boack-box specification of a system...

Why SRS document is also called as boack-box specification of a system

Software Metircs, I have a comprehensive question for Software Metrics ...i...

I have a comprehensive question for Software Metrics ...it is 16 question

Who is a stake holder for a software project, Q. Who is a stake holder for ...

Q. Who is a stake holder for a software project? [Stake holder :- something or somebody with direct interest:  a group or person with a direct interest, investment or involvem

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