---
schema_version: "1"
id: f430eadcae86cc1774fb7c53bc440c71083cfbd66bbacccd302cfbceb99cc09c
title: Scan a Semantic Model for Performance Recommendations
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/analytics/264-0-0/c360_sl_scan_model_perf_recommendations.md
canonical_url: https://help.salesforce.com/s/articleView?id=analytics.c360_sl_scan_model_perf_recommendations.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: d49a16dce01f52b6b4678a4dc296431e0497cb8739010a1a18b6247ac221482c
description: Open Optimize Model to scan join settings on a semantic model. The scan returns a Model Health rating and a card for each recommendation type.
products:
  - Data 360
release: "264"
---
# Scan a Semantic Model for Performance Recommendations

Open Optimize Model to scan join settings on a semantic model. The scan returns a Model Health rating and a card for each recommendation type.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small "><colgroup><col></colgroup><tbody><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;"><a href="https://help.salesforce.com/s/articleView?id=analytics.tua_editions.htm&amp;language=en_US" target="_blank">View supported editions.</a></td></tr></tbody></table>

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small permission">
        <colgroup>
          <col style="width:50%">
          <col style="width:50%">
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            <th scope="colgroup" class="slds-cell-wrap" colspan="2" style="text-align:left;vertical-align:top;" id="d19222e52">User Permissions Needed</th>
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            <td data-label="User Permissions Needed" class="slds-cell-wrap" style="vertical-align:top;" headers="d19222e52 ">To edit a semantic model:</td>

            <td class="slds-cell-wrap" style="vertical-align:top;" headers="d19222e52 ">Data Cloud Architect permission set AND Semantic Models object</td>

          </tr>
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A new session starts a new scan. The same session keeps the results already on the panel.

1. On the **Semantic Layer** tab, select the semantic model.
2. To start the scan, select **AI Optimization** | **Optimize Model** on the model toolbar.
    
    The scan reads the model's metadata and samples the join-column data. A scan usually takes a few minutes.
    
    ![Scan semantic model for performance recommendations](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-analytics-semantics-264-0-0-production-enus/f7c99ab1-3439-4722-b925-34cb47455d89/semantics/images/semanticlayer/SL_Perf_Recc_Optimize_Model.png)
3. When the scan completes, review the **Model Health** indicator and the card for each recommendation type.
    
    The panel shows a **Model Health** indicator, such as Moderate, and a card for Cardinality and for Match Case Insensitivity.
    
    ![Performance recommendation cards after the scan is complete.](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-analytics-semantics-264-0-0-production-enus/f7c99ab1-3439-4722-b925-34cb47455d89/semantics/images/semanticlayer/SL_Perf_Reco_Scan_Complete.png)

On a card that lists relationships, apply the recommendations. See [Apply Cardinality Recommendations to Your Semantic Model](https://help.salesforce.com/s/articleView?id=analytics.C360_sl_perf_reco_apply_cardinality_recommendations.htm&release=264.0.0&type=5 "Set a relationship's cardinality so queries skip extra deduplication. Review each suggestion, and then apply or dismiss it for this session.") and [Apply Match Case Insensitivity Recommendations to a Semantic Model](https://help.salesforce.com/s/articleView?id=analytics.c360_sl_perf_reco_apply_match_case_insensitivity_rec.htm&release=264.0.0&type=5 "Case-sensitive text joins slow queries when the values share one capitalization. Review each suggestion, and then apply or dismiss it for this session.").