Answered: Which UML symbol represents…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Which UML symbol represents aggregation?

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an unfilled triangle

a filled diamond

Expert Solution

Step 1

UML stands for Unified Modelling Language.

It is popular for its diagrammatic notation.
It is used for visualizing, constructing, documentation etc. purpose.
Efficient and appropriate use of notations is important for the modeling.

Aggregation:

It is a kind of binary association between a property and one or more of its composite objects.
It shows asymmetric property. i.e., aggregation can only be done with one end.
It is transitive in nature.

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