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 about the incremental model, Explain about the incremental model. ...

Explain about the incremental model. Have similar phases as the waterfall model. Phases are Analysis. Design. Code. Test. Incremental model delivers

What is sei capability maturity model, What is SEI capability maturity mode...

What is SEI capability maturity model? Initial Essentially uncontrolled Repeatable Product management procedures explained and used Defined Proc

Explain about token count - software metrics, Q. Explain about token count ...

Q. Explain about token count - software metrics? Token count :- A program is considered to be series of tokens and if we count the number of tokens, some interesting results m

What is test incident report, A document reporting on any event that happen...

A document reporting on any event that happens during testing that needs further investigation.

Determine the primary activities of spiral model, Determine the primary act...

Determine the primary activities of spiral model Below are the primary activities in this model: • Finalising Objective: Objectives are set for the particular phase of the

Explain about core dumps debugging technique, Q. Explain about Core dumps d...

Q. Explain about Core dumps debugging technique? Debugging is the activity of locating as well as correcting errors. Core dumps: -A printout of all registers as well as rel

How to minimize energy consumption in software program, In order to minimiz...

In order to minimize the energy consumption, the report will first identify the components that are consuming most energy in a system. Clearly, above mentioned are those components

Briefly explain integration testing, Q. Briefly explain Integration Testing...

Q. Briefly explain Integration Testing? Integration Testing: In this the module are methodically integrated and tested to find protocol design error, interface problems, errors

Describe about the environmental model, Describe about the Environmental mo...

Describe about the Environmental model It indicates environment in which system exists. Any small or big system is a sub-system of a larger system. For illustration, if softw

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