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

Why is quality assurance difficult in software engineering, Question: (...

Question: (a) Why is quality assurance especially difficult in software engineering ? (b) Inspiring yourself from the McCall's taxonomy of quality attributes, explain five

List the guidelines for data design, List the guidelines for data design. ...

List the guidelines for data design. i. Apply systematic analysis on data. ii. Identify data structures and related operations. iii. Establish data dictionary. iv. Use

Try, testing

testing

Explain the traces debugging method, Q. Explain the Traces debugging method...

Q. Explain the Traces debugging method? Traces:-Printout contains merely certain memory and register contents and printing is conditional on some event occurring. Typical condi

Define data objects and relationship, Define Data objects, attributes & rel...

Define Data objects, attributes & relationship. Data object: Representation of any collective information that must be understood by software. It can be any external entity.

Encapsulation, Illustrate the use of the concept Encapsulation.

Illustrate the use of the concept Encapsulation.

Cyclomatic complexity for a data flow diagram, pls explain how to calculate...

pls explain how to calculatethe cyclomatic complexity and independent paths Determine the cyclomatic complexity of the code ( (iii) Identify all the independent paths

Explain the term- phased, Explain the term- Phased In this approach ...

Explain the term- Phased In this approach only part of the new system is introduced and only when it proves to work satisfactorily is the next part introduced and so on, unti

Explain the software prototyping, What is meant by software prototyping? ...

What is meant by software prototyping? Software prototyping is a process of producing a model for the software product. This is developed based on the recently known requiremen

What is a test configuration manager, Test Configuration Managers handles t...

Test Configuration Managers handles test environments, scripts, software and test data. Depending on the project, single person may wear more than single hat. For example, Test Eng

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages