columns:
  - column: "Tier"
  - column: "Description"
rows:
  - "Tier": "**Source cluster(s)**"
    Description: |
      **A dedicated cluster(s)** for [sources](/concepts/sources/).

      {{% best-practices/architecture/upsert-source %}}

  - "Tier": "**Compute/Transform + Serving cluster**"
    Description: |
      **A dedicated cluster** for both compute/transformation and serving queries:

      - [Views](/concepts/views/#views) that define the
        transformations.

      - Indexes on views to maintain up-to-date results in memory and serve
      queries.

      With a two-tier architecture, compute and queries compete for the same
      cluster resources.

      {{< include-md file="shared-content/shared-cluster-indexed-view-tip.md" >}}