Engineering Notebook

StreamFlow Phase 2

Enterprise analytics pipeline

A Snowflake medallion architecture, Gold star schema, Airflow orchestration template, and Power BI semantic contract built on top of the StreamFlow Phase 1 event stream.

01 Preserve raw payloads in Bronze 02 Type and deduplicate records in Silver 03 Publish facts and dimensions in Gold 04 Validate counts and joins before BI 05 Document dashboard measures and QA checks

Warehouse story

From stream output to business metrics

Phase 2 shows the handoff from data engineering to analytics engineering: raw event files become audited warehouse layers, reconciled reporting tables, and dashboard-ready measures.

Medallion SQL

sql/bronze, sql/silver, sql/gold

Defines raw preservation, clean typed events, and BI-ready fact/dimension tables.

Reconciliation

tests/reconciliation_checks.sql

Checks row counts and dimensional join integrity before dashboard refresh.

Semantic Layer

powerbi/measures.md

Documents DAX measures and Snowflake queries used to validate dashboard totals.

Open the interactive StreamFlow analytics dashboard backed by exported Snowflake Gold metrics

Read the StreamFlow Phase 2 project record