ETL-Framework Documentation

Contents:

• ETL-framework 🏗️
  • Principles & Practices🚦
• Use Case
  • Business Context
  • Source Data
  • Engineering Goals
  • Pipeline Overview
  • Data Model
  • Dashboard Delivery
  • Extensibility
• Service-Level Objectives
  • 1. Objectives at a Glance
  • 2 Timeliness (T-1)
  • 3 Completeness (C-1)
  • 4 Quality (Q-1)
• Tooling Overview
  • Data Processing
  • Infrastructure & Deployment
  • Testing & Code Quality
  • Documentation
• Delta Engine — Architecture & Design Guide
  • 1) High‑level overview
  • 2) Design principles
  • 3) Concepts & data structures
  • 4) Planning logic (compile/planner.py)
  • 5) Validation rules (validation/rules.py)
  • 6) Execution (execute/)
  • 7) DDL & SQL (execute/ddl.py, sql.py)
  • 8) Public API surfaces
  • 9) Extending the engine
  • 10) Testing playbook
  • 11) Operational guidance & pitfalls
  • 12) Worked example
  • 13) Reference: contracts cheat‑sheet
  • 14) Appendix: module map