Discuss in detail about data modeling, Software Engineering

Assignment Help:

Discuss in detail about data modeling.

Data modelling makes use of the ERD.
Consists of three interconnected information.

The data object.

Attributes.

Relationships.

Cardinality and Modality

Cardinality means the specification of the number of occurrences of one object that can be linked to the number of occurrences of another object.
One-to-one cardinality.
One-to-many cardinality.
Many-to-Many cardinality.
Modality of a relation is 0 when no explicit relationship or relation is optional.
Modality is 1 when occurrence of relationship is mandatory.

Entity/Relationship Diagrams

Elements are

Data Objects.

Attributes.

Relationships.

Various type indicators.

Related Discussions:- Discuss in detail about data modeling

Produce a use case diagram, ZeroJet, a new low cost airline, wants a brand ...

ZeroJet, a new low cost airline, wants a brand new web-based system to allow people to book seats for flights on-line. They want an automated check in system which has no staff.

What are the phases of problem solving loop, What are the phases of Problem...

What are the phases of Problem solving Loop? Problem definition identifies the problem to be resolved. Technical development helps to resolve the Problem through various Te

Illustrate about the managed level of maturity model, Level 4 (Managed) ...

Level 4 (Managed) Organisation satisfies all the requirements of level-3. At this level quantitative standards are set for software processes andproducts. Project analysis is

Black box and white box testing, I am not properly understanding the basis ...

I am not properly understanding the basis difference between black box testing and white box testing. Please explain in simple way and with some example so that I can easily under

What is function count, Function count:- It measures the functionality fro...

Function count:- It measures the functionality from the user point of view, that is, on the basis of what the user requests and receives in return. Therefore it deals with the fun

What is benchmark, What is Benchmark? Ans) A Benchmark is a standard to ...

What is Benchmark? Ans) A Benchmark is a standard to calculate against.

Queue, algorithm

algorithm

One want record a data driven test then how will one do that, You want to r...

You want to record a data driven test. How will you do that? There are 3 ways to create a data-driven test: a.) By using data from a data table b.) By using data from a f

What is test suite, What is Test Suite - It is a collection of tests t...

What is Test Suite - It is a collection of tests that are used to validate the behavior of an application or product. - Generally a test Suite is a high level concept, grou

Give the procedure of the delphi method, Give the procedure of the Delphi m...

Give the procedure of the Delphi method. 1. The co-ordinator shows a specification and estimation form to each expert. 2. Co-ordinator calls a group meeting in which the exp

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages