---
schema_version: "1"
id: f7db114b5d3d3c086b90c02bdc093fe0488bb5a1d5dfc5632eec7bbe04640bc9
title: Business Rules Engine Key Terms
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/ind/264-0-0/business_rules_engine_key_terms.md
canonical_url: https://help.salesforce.com/s/articleView?id=ind.business_rules_engine_key_terms.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: e224884bf6915b9454b4fa30015162549cceb7233d3ae390e6f586f6b9219831
description: Let's look at some key terms that you come across when you use Business Rules Engine.
products:
  - Industry Solutions
  - Cross Cloud
release: "264"
---
# Business Rules Engine Key Terms

Let's look at some key terms that you come across when you use Business Rules Engine.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition"><colgroup><col></colgroup><tbody><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: Lightning Experience</td></tr><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: <strong>Enterprise</strong>, <strong>Unlimited</strong>, and <strong>Developer</strong> Editions for clouds that have Business Rules Engine enabled</td></tr></tbody></table>

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small " summary="Key Terms">
        <caption>Key Terms</caption>
        <colgroup>
          <col style="width:50%">
          <col style="width:50%">
        </colgroup>
        <thead class="slds-text-title_caps ">
          <tr class="">
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d15742e72">Term</th>
            <th scope="col" class="slds-cell-wrap" style="vertical-align:top;" id="d15742e75">Description</th>
          </tr>
        </thead>
        <tbody>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Expression Sets</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">
              <p style="margin-bottom:0;">Set of rules that are created in Expression Set Builder in Business Rules Engine.
                Expression sets are a series of rules created by using expression set elements. Each
                element added to an expression set forms a logical step that's runs sequentially.
                Expression sets evaluate conditions, perform mathematical operations, look up decision
                tables and matrices, and perform multiple transformations simultaneously. Add expression
                sets to workflows that are created in Flow, Omnistudio, or third-party tools. </p>
            </td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Expression Set Elements</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">The building blocks of expression sets. You can add each available element as a step
              in an expression set. Use step elements to perform calculations and aggregations, build
              conditions, and look up decision tables and decision matrices to implement complex rules in
              a systematic and readable way.</td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Decision Matrices</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">Lookup tables that match your input values to a row in the matrix. When the matrix
              finds an exact match, it returns the row's output value.</td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Decision Tables</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">Advanced lookup tables that can provide multiple matching outcomes for the same set of
              inputs. Decision tables can read rules from Salesforce objects and can support different
              operators for each field in the object.</td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Advanced decision tables</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">A type of decision table that supports a large volume of rows and lesser complexity.
            </td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Standard decision tables</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">A type of decision table that supports complex conditions.</td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Expression Set Templates</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">Prebuilt, read-only rules that you can't modify. Save expression set templates as
              expression sets to modify them for your business needs. Templates provide an outline for
              building your expression set and save you the trouble of creating an expression set from
              scratch.</td>

          </tr>
          <tr class="">
            <td data-label="Term" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e72 ">Workflows</td>

            <td data-label="Description" class="slds-cell-wrap" style="vertical-align:top;" headers="d15742e75 ">Digital processes that can call Business Rules Engine components: expression sets,
              decision tables, and decision matrices. Create workflows with Flow, Omnistudio, or custom or
              third-party tools.</td>

          </tr>
        </tbody>
      </table>