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 standard enforces, Q. What is Standard enforces? Standard enfo...

Q. What is Standard enforces? Standard enforces This tool is like a code inspector; expect that the rules are generally simpler. The main distribution is that a full-blown

Draw a class diagram which represents the information, QUESTION Draw a ...

QUESTION Draw a class diagram which represents the information handled by the Online Bakery-equipments Ordering System. Your class should briefly and simply reflect the relatio

Mca, encoded micro instruction vs unecoded micro instruction

encoded micro instruction vs unecoded micro instruction

Why software change happens, Why software change occurs? Software chang...

Why software change occurs? Software change occurs because of the following reasons. New requirements appear when the software is used. The business atmosphere changes. E

Product engineering, Product Engineering The Product engineering which ...

Product Engineering The Product engineering which is also called system engineering is a problem solving activity. To function, desired product data, and behaviour are uncovere

Features of cds - isis software, Features of Cds - isis software: Main...

Features of Cds - isis software: Main Features The main features of CDS/ISIS software may briefly be summarised as follows:   the handling of variable length records, fi

Explain communicational cohesion, Communicational cohesion : Communicationa...

Communicational cohesion : Communicational cohesion is when parts of a module are grouped because they operate on the similar data (e.g. a module which operates on the similar reco

#use case diagram, #use case diagram for car manufactures by considering bu...

#use case diagram for car manufactures by considering build and price of car as use case#

Explain glass box testing, Glass box testing is the similar as white box te...

Glass box testing is the similar as white box testing. It's a testing approach that consider the application's program structure, and derives test cases from the application's prog

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