Define the minimum cardinality of a relationship, Software Engineering

Assignment Help:

Define the Minimum cardinality of a relationship

Minimum cardinality of a relationship is the minimum number of instances of second entity (student, in this case) with every instance of first entity (class, in this case).

In a situation where there can be no instance of second entity, then, it's known as an optional relationship. For instance if a college doesn't offer a particular course then it would be called as optional with respect to relationship 'offers'. This relationship is demonstrated in Figure.

 

2393_Cardinality & Optionally.png


Related Discussions:- Define the minimum cardinality of a relationship

How to write the data dictionary, Write down the Data dictionary for the da...

Write down the Data dictionary for the data item "Telephone Number". Names: Telephone number Aliases: none Where to use /How to use: assess against set-up Explanation

Handling customer complaints, Handling customer complaints There are al...

Handling customer complaints There are always some customers who complain after completing the sales. Like customer objections, don't take complaints negatively. Other than

Software Quality Assurance - Defect Amplification and Remova, Errors from p...

Errors from previous stage Errors passed through Amplified errors Newly generated errors Errors passed to next stage Testing phase of project-A 35 35 0 5 20 Testing phase of Projec

Explain dynamic and static metrics, Dynamic and static metrics Dynamic ...

Dynamic and static metrics Dynamic metrics are closely related to software quality attributes It is relatively easy to measure the response time of a system (performance

What is control structure testing, Explain Control Structure Testing Ans...

Explain Control Structure Testing Ans) Due to basis path testing alone is insufficient, other methods should be utilized. Condition testing can be utilized to design test cas

Iterative Enhancement Model, what is the advantage of Iterative Enhancement...

what is the advantage of Iterative Enhancement Model in developing a system?

What is the use of architectural design, What is the use of Architectural d...

What is the use of Architectural design? The Architectural design explains the relationship among major structural elements of the software, the "design patterns" that can be u

Discuss the impact of "information era", Question 1 Discuss the impact of ...

Question 1 Discuss the impact of "information era" Question 2 Explain whether the linear sequential model of the software process is an accurate reflection of software developme

Software development system, Question: (a) Shneiderman's eight golden ...

Question: (a) Shneiderman's eight golden rules for dialogue design are (1) strive for consistency, (2) enable frequent users to use shortcuts, (3) give informative feedback,

What is upward compression, What is Upward compression? Ans) In software...

What is Upward compression? Ans) In software design, "upward compression" means a type of demodularization in which a subordinate module is copied into the body of a better modu

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