Business Case Summary
Solution Overview
Solution Components
This solution demonstrates:
- ✅ Architectural thinking and design decisions
- ✅ Business communication skills
- ✅ SQL solution (query design)
- ✅ ETL design (pseudocode, diagrams, edge cases)
- ✅ CI/CD workflow design
- ✅ Stakeholder communication templates
Solution Contents
📄 Executive Documents
- Executive Summary - High-level overview, assumptions, trade-offs
- Handout - Presentation handout
🏗️ Architecture & Design
Task 1: ETL Design
- Assumptions and Edge Cases - Design assumptions and edge case handling
- ETL Flow & Pseudocode - Complete ETL logic in pseudocode and diagrams
- ETL Implementation - Complete ETL code
- Configuration Template - Configuration template (example only)
Task 2: Data Lake Architecture
- Data Lake Architecture - Complete architecture documentation (8 sections)
- Architecture Diagram - Architecture diagram source
Task 3: SQL Solution
- Balance History Query - Production-ready SQL query
- SQL Breakdown - SQL design rationale and query structure
Task 4: CI/CD Design
- CI/CD Workflow - Complete CI/CD workflow design and documentation
📧 Communication & Documentation
Task 5: Stakeholder Communication
stakeholder_email.md- Monthly status update email templateone_pager_tech.md- Technical one-pager for engineersREADME.md- Communication guideTEMPLATE_GUIDE.md- Template assembly guidemodules/- Modular communication system (9 reusable modules)
📚 Supporting Documentation
TESTING.md- Testing approach and strategyAWS_SERVICES_ANALYSIS.md- AWS services analysis (if applicable)
Key Highlights
Architecture Excellence
- ✅ Bronze/Silver/Gold medallion architecture
- ✅ Immutable raw layer with audit trail
- ✅ Schema evolution strategy with versioning
- ✅ Failure mode analysis for all critical components
- ✅ Comprehensive governance and ownership model
Design Quality
- ✅ Explicit assumptions and trade-offs documented
- ✅ Edge case handling thoroughly considered
- ✅ Cloud-native architecture (S3, Glue, Athena)
- ✅ Production-ready patterns (run isolation,
_SUCCESSmarkers)
Communication Skills
- ✅ Stakeholder email with clear metrics
- ✅ Technical one-pager for engineers
- ✅ Modular communication system for different audiences
- ✅ Professional documentation structure
SQL Solution
- ✅ Performant query with partition pruning
- ✅ Window functions for efficient month-end calculation
- ✅ Handles accounts with no activity
- ✅ Engine-portable ANSI SQL
How to Navigate
- Start Here: Executive Summary - Get the high-level overview
- Architecture: Data Lake Architecture - Deep dive into design
- SQL Solution: Balance History Query - See the query
- ETL Design: ETL Flow & Pseudocode - Understand the logic
- Communication: Stakeholder Email - See stakeholder comms