Add Support for Audiences

[mullinsms]

A lot of real-world semantic layer work is not “one universal model for everyone.” Teams need to package the same semantic definitions into audience-specific views: Finance vs Sales, Exec vs Analyst, Customer-facing vs Internal, etc. OSI needs a first-class concept for packaging/audiences.

Strawman Approach

Introduce an optional top-level construct such as:

• domains: groupings with metadata (owner, description, tags)
• perspectives (or packages / audiences): named bundles that reference a subset of semantic assets
  • includes/excludes for metrics, dimensions, entities, semantic_models
  • optional aliases (renames) and folders for presentation
  • optional visibility_rules hook (even if enforcement stays vendor-specific)

Example

• Domain: “Finance”
• Perspective: “Finance Executive”
  • include: revenue, gross_margin
  • exclude: internal_cost_allocations
  • aliases: revenue -> “Revenue (GAAP)”