Describe the concept of aggregation, Computer Engineering

Assignment Help:

Aggregation

Aggregation is a special form of association that models the "part-whole" or "a-part-of" relationship as an aggregate (the whole) and parts. The most important property of aggregation is transitivity, i.e.  If X is part of Y and Y is part of Z, then X is part of Z. Aggregation should consider as a relationship in which an assembly class is related to component class. As component objects are not having different existence, they depend on composite objects as you can see in Figure Exam Schedule is not having separate existence.

 

573_cse.png


Related Discussions:- Describe the concept of aggregation

Explain properties of the webservice attribute, Question: (a) (i) Expl...

Question: (a) (i) Explain properties of the WebService attribute. (ii) Discuss three properties of the WebMethod attribute. (b) What are WSDL documents used for? (c)

What can be middle wares role within e-commerce, What can be middle wares r...

What can be middle wares role within e-commerce? By the utilize info Platform Commerce Server a shopping service can take benefit of reaching the end user onto Open TV, SMS, WA

Secondary memory and characteristics, It is desirable that operating speed ...

It is desirable that operating speed of primary storage of a computer system be as fast as possible since most of the data transfer to and from processing unit is via main memory.

Example on cyclic distribution of data, Q. Example on Cyclic Distribution o...

Q. Example on Cyclic Distribution of data? !HPF$ PROCESSORS P1(4) !HPF$ TEMPLATE T1(18) !HPF$ DISTRIBUTE T1(CYCLIC) ONTO P1 The result of these instructions is display

Summary of tasks, Summary of Tasks Task Summary attempts to show amoun...

Summary of Tasks Task Summary attempts to show amount of duration every task has spent starting from beginning of task until its completion on any processor as displayed in Fi

Modality and cardinality, Ask question #Midifference between cardinality an...

Ask question #Midifference between cardinality and modality nimum 100 words accepted#

What is basic working of modem, Q. What is basic working of Modem? A mo...

Q. What is basic working of Modem? A modem (modulator/demodulator) is an electronic device that takes digital data as a serial stream of bits and produces a modulated carrier s

Distributed network architecture, Problem a) Distributed network archi...

Problem a) Distributed network architecture is whereby services are executed and distributed  among various computers. Give two advantages and two disadvantages of the distrib

What will exactly the hide statement do, What will exactly the hide stateme...

What will exactly the hide statement do? For displaying the details on secondary lists needs that you have previously stored the contents of the selected line from within the

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