Distribute system intelligence

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:''Distribute system intelligence horizontally as uniformly as possible, i.e. the top level classes in a design should share the work uniformly.'' --Riel's Heuristic 3.1, [[Arthur Riel 1996]]
 
:''Distribute system intelligence horizontally as uniformly as possible, i.e. the top level classes in a design should share the work uniformly.'' --Riel's Heuristic 3.1, [[Arthur Riel 1996]]
  
 
==Description==
 
==Description==
From chapter 3.3 of [[Arthur Riel 1996]], Riel describes the &quot;god class problem&quot;:
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From chapter 3.3 of [[Arthur Riel 1996]], Riel describes the "god class problem":
&lt;blockquote&gt;
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<blockquote>
 
''The behavioral form of the god class problem is caused by a common error among action-oriented developers in the process of moving to the object-oriented paradigm. These developers attempt to capture the central control mechanism so prevalent in the action-oriented paradigm within their object-oriented design. The result is the creation of a god object that performs most of the work, leaving minor details to a collection of trivial classes. There are a number of heuristics that work together cooperatively toward the avoidance of these classes.''
 
''The behavioral form of the god class problem is caused by a common error among action-oriented developers in the process of moving to the object-oriented paradigm. These developers attempt to capture the central control mechanism so prevalent in the action-oriented paradigm within their object-oriented design. The result is the creation of a god object that performs most of the work, leaving minor details to a collection of trivial classes. There are a number of heuristics that work together cooperatively toward the avoidance of these classes.''
&lt;/blockquote&gt;
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</blockquote>
  
 
This heuristic follows from that.
 
This heuristic follows from that.
  
 
[[Category:Riel's heuristics]]
 
[[Category:Riel's heuristics]]

Latest revision as of 03:10, 25 November 2010

Distribute system intelligence horizontally as uniformly as possible, i.e. the top level classes in a design should share the work uniformly. --Riel's Heuristic 3.1, Arthur Riel 1996

Description

From chapter 3.3 of Arthur Riel 1996, Riel describes the "god class problem":

The behavioral form of the god class problem is caused by a common error among action-oriented developers in the process of moving to the object-oriented paradigm. These developers attempt to capture the central control mechanism so prevalent in the action-oriented paradigm within their object-oriented design. The result is the creation of a god object that performs most of the work, leaving minor details to a collection of trivial classes. There are a number of heuristics that work together cooperatively toward the avoidance of these classes.

This heuristic follows from that.

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