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BI Semantic Layer Generator

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Generates semantic layer definitions for BI tools from dimensional models

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BI Semantic Layer Generator

Overview

Generates semantic layer definitions for BI tools from dimensional models. This skill automates the translation of dimensional models into platform-specific semantic definitions.

Capabilities

  • LookML generation (Looker)
  • Tableau data model generation
  • Power BI semantic model creation
  • Cube.js schema generation
  • dbt metrics layer integration
  • Calculation and measure definitions
  • Hierarchy generation
  • Security filter generation
  • Join path optimization

Input Schema

{
  "dimensionalModel": "object",
  "targetPlatform": "looker|tableau|powerbi|cubejs|dbt",
  "businessGlossary": "object",
  "securityRules": ["object"]
}

Output Schema

{
  "semanticModel": "object",
  "calculations": ["object"],
  "hierarchies": ["object"],
  "securityFilters": ["object"],
  "documentation": "string"
}

Target Processes

  • Metrics Layer
  • BI Dashboard Development
  • Data Warehouse Setup

Usage Guidelines

  1. Provide complete dimensional model definition
  2. Specify target BI platform
  3. Include business glossary for consistent naming
  4. Define security rules for row-level filtering

Best Practices

  • Maintain consistency between semantic layer and source models
  • Use business glossary terms for user-facing labels
  • Implement hierarchies for drill-down analysis
  • Configure appropriate caching strategies
  • Document calculation logic for maintainability