Conglomeration-realising alias protection

Author

Potter, John ; Noble, James

Author_Institution

Sch. of Comput. Sci. & Eng., New South Wales Univ., Sydney, NSW, Australia

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

189

Lastpage

195

Abstract

Composition and aggregation are widely used in UML analysis and design models to represent part-whole structures. Neither kind of association places any restriction on how the paths may be used from outside the whole object; this can lead to a number of problems if a part object is aliased from outside. Conglomeration realises a stronger form of encapsulation than does composition. Parts of conglomerate objects are protected from external access. By imposing instance-level consistency conditions on part-whole relationships, conglomeration can make UML models easier to build, understand, and implement correctly

Keywords

data encapsulation; object-oriented programming; Component Object Model; Java Beans; UML analysis; aggregation; alias protection; association; component interfaces; component-based software; composition; compositional approaches; conglomerate objects; conglomeration; encapsulation; external access protection; instance-level consistency conditions; modelling notations; part-whole structures; systems development; Aggregates; Computer science; Design engineering; Electrical capacitance tomography; Encapsulation; Object oriented modeling; Protection; Read only memory; Tree data structures; Unified modeling language;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science Conference, 2000. ACSC 2000. 23rd Australasian

Conference_Location

Canberra, ACT

Print_ISBN

0-7695-0518-X

Type

conf

DOI

10.1109/ACSC.2000.824402

Filename

824402