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

Online bakery-equipments ordering system, Question: Draw a class diagra...

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 relat

Decode the code problem for smugglers, c code for decode the code problem

c code for decode the code problem

Explain about rapid prototyping techniques, Explain about rapid prototyping...

Explain about rapid prototyping techniques. Used to animate the system specification. It is expressed in a formal, mathematical language to provide a system prototype

DFD AND DATA DICTIONARY, Hoosier Burger''s food ordering system dfd and dat...

Hoosier Burger''s food ordering system dfd and data dictionary

Define software measurement, Define software measurement. A software me...

Define software measurement. A software measurement is a method or method that applies software calculates to a class of software engineering objects to attain a predefined goa

What is program control instruction, What is Program Control Instruction ...

What is Program Control Instruction A program control type of instruction, when implemented, may change the address value in the program counter and cause the flow of control t

What is test data generators, Q. What is Test data generators? This is...

Q. What is Test data generators? This is a difficult one as well as at least for the present is one for which no general solution exists. One of the practical problems with te

E-R diagram, Draw an E-R diagram for the following situation: an account is...

Draw an E-R diagram for the following situation: an account is a relationtion between cutosmer and bank. A customer had a name.

Describe dom browser extension, Describe DOM browser extension. - Docum...

Describe DOM browser extension. - Document Object Model (DOM) browser extension is a SilkTest add-on component for testing Web applications. - DOM browser extension communic

How can we re-engineering of any product, How can we re-engineering of any ...

How can we re-engineering of any product One additional difficulty in adopting this approach is large investment which exists in software system maintenance. It requires additi

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages