volume_mute

The Gang of Four

publish date: 2026/06/12 10:18:10.934848 UTC

volume_mute

The most influential set of design patterns was published in 1995. Which of the following correctly describes this publication and its significance?

A government standard mandating the use of patterns in safety-critical systems

A book by Booch et al. defining the UML notation for object-oriented modeling

A journal article by Bass, Clements, and Kazman on architectural patterns

A book by Gamma, Helm, Johnson, and Vlissides ('Gang of Four') describing 23 general-purpose object-oriented design patterns that have become a vocabulary for talking about software design

Correct Answer

A book by Gamma, Helm, Johnson, and Vlissides ('Gang of Four') describing 23 general-purpose object-oriented design patterns that have become a vocabulary for talking about software design

Explanation

The 'Gang of Four' - Gamma, Helm, Johnson, and Vlissides - published the original patterns book in 1995 describing 23 general-purpose object-oriented design patterns. This had a huge impact on OO software design. Patterns have become a vocabulary for talking about designs: you can explain your design by describing the patterns you have used. The 23 patterns are the most well-known, though hundreds of patterns have since been proposed.

Reference

Software Engineering, Ian Sommerville, 10th edition

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