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 computer clock synchronization of paramount importance, QUESTION - Time...

QUESTION - Time Synchronization (a) Why is computer clock synchronization of paramount importance? Give 2 business scenarios whereby time accuracy is critical? (b) Computers

State the term software is engineered, Justify the term "Software is engine...

Justify the term "Software is engineered" Software is engineered not manufactured. Although some similarities exist between software development and hardware manufacture, the t

What is data dictionary, What is Data Dictionary? Data dictionary is a ...

What is Data Dictionary? Data dictionary is a storehouse of data giving information about data. It is a list of terms and their meaning for all data items and data files of a s

Write a valid schema for the container, A storage tank has a container to k...

A storage tank has a container to keep a certain amount of fuel and it also has an indicator to inform about the level of fuel inside the container. The container cannot exceed

Illustrate intermediate COCOMO model, Q.Illustrate Intermediate COCOMO mode...

Q.Illustrate Intermediate COCOMO model ? The intermediate COCOMO model approximation the software development effort by using 15 cost drivers' variables besides the size variab

What are the different rapid prototyping techniques, What are the different...

What are the different Rapid prototyping techniques? i. Dynamic high level language development. ii. Database programming. iii. Component and application assembly.

Explain about virtual memory, Explain about Virtual memory Virtual memo...

Explain about Virtual memory Virtual memory is a method used in some large computer that permit the user to construct programs as by a large memory space were available, equal

Patient management system for a hospital, Maintain you are involved in a la...

Maintain you are involved in a large project concerning the development of a patient management system for a hospital. You may opt for one of two plans. The first plan is to start

Explain cyclomatic complexity, What is cyclomatic complexity? Cyclomati...

What is cyclomatic complexity? Cyclomatic complexity is software metric that gives the quantitative measure of logical complexity of the program. The Cyclomatic complexity e

Explain test procedure, Explain Test Procedure? Ans) The formal or infor...

Explain Test Procedure? Ans) The formal or informal process that will be followed to execute a test. This is usually a written document that permits others to implement the test

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages