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

Explain the test specification and test suite, Explain the Test Specificati...

Explain the Test Specification and Test Suite: - This is a document verifying the test approach for a software feature or combination or features and the inputs, predicted resu

Define process maturity, Define process maturity. In recent years there...

Define process maturity. In recent years there has been a important emphasis on process maturity. The Software Engineering Institute. (SEI) has developed a comprehensive model

Explain data collection, Data collection A metrics programme should be ...

Data collection A metrics programme should be based on a set of product and process data. Data should be collected immediately (not in retrospect) and, if possible, automati

Explain in detail about functional modeling, Explain in detail about Functi...

Explain in detail about Functional Modeling. This model explains the computations that take place within a system. This model is useful when the transformation from the i

What is review, What is Review? Ans) A method or meeting during which a ...

What is Review? Ans) A method or meeting during which a work product or set of work products, is shown to project personnel, managers, users, customers, or other interested part

Explain the brooks law, Define Brooks law. Software was delivered late...

Define Brooks law. Software was delivered late, was defective, cost several times the original estimates and often showed poor performance characteristics.

Software myth, how does software myth affects software process

how does software myth affects software process

Define cardinality and modality, Define Cardinality & Modality. Cardina...

Define Cardinality & Modality. Cardinality: Requirement of the number of occurrences of one that can be linked to number of occurrences of another. Modality: The Modality of

Define software testability, Q. Define Software testability? Software ...

Q. Define Software testability? Software testability is the degree to which a software artifact (i.e. a software system, software module, requirements- or design document) su

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