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Combination / Stack Rule
Combination / Stack Rule

This article explains the difference between the stack rule and the combination rule—and when to use each. These rules are particularly helpful if your knowledge map has multiple simple triangle rules. The article also gives you an example knowledge map so you can explore stack and combination rules inside the Rainbird Studio.

If you are building a map comprised of multiple simple triangle rules, there are different approaches to utilising them all effectively in one rule. All the conditions taken into account can either be stacked in one relationship’s rule, or they can be combined from sub-relationships’ rules into an overall relationship’s rule.

Stacked rules are best used when the number of conditions for a rule is low, as fewer relationships will need to be created. If the number of conditions significantly grows, it is recommended to use combination rules as it improves the readability and makes it easier to maintain the map.

To demonstrate how to use and build combination/stack rules, this article will show you how to build a film recommendation tool that uses both types of rules.

Click on a sub-topic below for more information:

  1. Stack Rule
  2. Combination Rule
  3. Combination / Stack Rule - Downloadable Model
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