---
title: "What is 'Class Cluster' ?"  
description: "What is 'Class Cluster' ?"  
author: "Tarun Kumar"  
published: 2015-10-28  
updated: 2020-09-18  
canonical: https://www.mindstick.com/interview/22873/what-is-class-cluster  
category: "iphone"  
tags: ["iphone", "ios", "objective c"]  
reading_time: 1 minute  

---

# What is 'Class Cluster' ?

Foundation Framework uses classCluster design pattern, Cluster classes are a group of a number of private concrete subclasses under a public abstract superclass. The grouping of classes in this way simplifies the publicly visible architecture of an object-oriented framework without reducing its functional richness.

## Answers

### Answer by Tarun Kumar

Foundation Framework uses classCluster design pattern, Cluster classes are a group of a number of private concrete subclasses under a public abstract superclass. The grouping of classes in this way simplifies the publicly visible architecture of an object-oriented framework without reducing its functional richness.


---

Original Source: https://www.mindstick.com/interview/22873/what-is-class-cluster

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.