Data Setup20% of the exam
Semantic model components, relationships and testing
What a Tableau Next semantic model contains, how to build one from Data 360 objects, an existing model or a Tableau published data source, how relationships and logical views combine objects, how to design labels and metrics for analytics agents, and how Test Model checks the result.
Understand the components, design, and application of semantic models.
~8 min read · 20 practice questions
What the exam expects
- Describe a semantic model as metadata and name its layers: objects, relationships, field metadata, calculated fields and metrics.
- Build a model from Data 360 objects, an existing model or a Tableau published data source, and predict what each route allows.
- Choose between a relationship and a logical view, and finish imported relationships correctly.
- Apply AI-readiness rules for labels, descriptions, grain, connected structure, redundant calculations and metrics.
- Use Test Model and interpret its outline, filters, Run and Reset.
Key terms:
- Semantic model: metadata holding a data model plus semantic definitions.
- DMO / DLO: a data model object maps the data stored in one or more data lake objects into a reliable structure.
- Relationship: a connection between two data objects on common fields, without a join type.
- Logical view: a data object built from other objects with joins or unions.
- PDS: a Tableau published data source on Tableau Cloud.
Key facts
What a semantic model is
- Detail
- First-class Salesforce metadata, available throughout Data 360
New-model dialog
- Detail
- One data object at a time; add more with the Data Objects plus icon
Imported relationships
- Detail
- Data 360 DMO relationships included; circular ones removed
Key qualifier
- Detail
- Imported from Data 360, added to imported relationships manually
PDS-backed model
- Detail
- No DMOs created; additional objects can't be added
Create from Tableau permissions
- Detail
- Data Cloud Architect and Semantic Models permission sets plus a Tableau Next license
Field Visibility default
- Detail
- All fields visible by default
API name vs label
- Detail
- API name not editable after creation in the model; label editable
Test filters
- Detail
- Affect only test results, never the model's objects
Test Sample Size
- Detail
- Default 100 rows
Sources for this section (7)
- Semantic Models in Tableau Nexthelp.salesforce.com (opens in a new tab)
- Add Semantic Modelshelp.salesforce.com (opens in a new tab)
- Relationships in Tableau Semanticshelp.salesforce.com (opens in a new tab)
- Design for AI Readinesshelp.salesforce.com (opens in a new tab)
- Connect a PDS to a New Semantic Modelhelp.salesforce.com (opens in a new tab)
- Manage Data Objectshelp.salesforce.com (opens in a new tab)
- Test a Semantic Modelhelp.salesforce.com (opens in a new tab)
- What is the default Sample Size when you configure a Test Model run?
- Why should a modeler avoid combining Live Query Federation objects with objects from other sources in one model?
- Why map a date column to the date field type rather than text?
- When a test uses several filters, which operators can the filter-logic expression contain?
The questions are free to read. Answers with their sources and self-grading are included with the pack.
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