06-reference

dedp ce intro

Fri Apr 03 2026 20:00:00 GMT-0400 (Eastern Daylight Time) ·book-chapter ·source: https://www.dedp.online/part-2/4-ce/_example-of-convergent-evolution.html ·by DEDP / Simon Späti

DEDP 4.1 — Convergent Evolution and Its Patterns (Intro)

The navigation map for Part 2. This chapter provides the flowchart that connects specific technologies to the patterns and design patterns they belong to. It is a reference chapter — short on prose, high on structural value.

The Hierarchy in Practice

The chapter establishes the bottom-up navigation path:

Convergent Evolutions (CEs) → Patterns (DEPs) → Design Patterns (DEDPs)

The key insight: start from what you know. Find a technology you use daily (dbt, Airflow, Snowflake, Kafka), trace the arrows upward to the pattern it implements, then follow to the design pattern that tells you how to implement it well.

The Flowchart

The central visualization maps:

This is the book’s table of contents expressed as a dependency graph rather than a linear list.

How to Use This

For 01-projects/phdata/index consulting work, this flowchart is a client conversation tool:

  1. Ask: “What technologies are you using?” (identify their CEs)
  2. Map those to patterns (what problems are they actually solving?)
  3. Identify gaps: which patterns are missing or poorly implemented?
  4. Recommend design patterns for the gaps

This is 06-reference/concepts/systems-over-goals in action — the flowchart shifts the conversation from “should we use Tool X?” to “which pattern do we need, and what implements it best in our context?”

Connections