# ddd-crew/welcome-to-ddd

Definitions of DDD and fundamental concepts to reduce the learning curve and confusion

Repository: https://github.com/ddd-crew/welcome-to-ddd
Canonical: https://ross.abutalabs.com/products/welcome-to-ddd
License: CC-BY-SA-4.0
License Family: other
Topics: domain-driven-design
Last push: 2026-08-02T18:00:38+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 35, longevity 100
- inputs: {"age_days": 2074, "days_push": 31, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1542, forks 88 (observed 2026-08-28T04:05:01.168731+00:00)

## What it is
A curated collection of definitions and fundamental concepts of Domain-Driven Design (DDD), including visual 'DDD on a page' diagrams and links to starter resources. It aims to reduce the learning curve and confusion around DDD terminology and practices.

## Use cases
- learn domain-driven design fundamentals
- understand DDD terminology and definitions
- find a starting point for applying DDD to a project
- get a one-page visual overview of DDD concepts
- reduce confusion when introducing DDD to a team
- find translations and related DDD learning resources

## When to choose
- you are new to DDD and need clear definitions of core concepts
- you want a concise visual reference to share with your team
- you need curated links to starter modelling processes and DDD techniques
- you want a free, openly licensed introduction to DDD

## When to avoid
- you need a software library or framework implementing DDD patterns in code
- you are looking for an in-depth tutorial or full-length book on DDD
- you need tactical DDD code examples or templates for a specific language

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation
- domain: developer-tools, tutorials, awesome-lists
- platform: -
- tags: domain-driven-design, definitions, learning-curve, software-design, reference-guide, web-server

## Member repositories
- ddd-crew/welcome-to-ddd (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:01.168731+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:30:43.431471+00:00, confidence not recorded.
  - readme: https://github.com/ddd-crew/welcome-to-ddd (fetched 2026-08-28T04:05:01.168731+00:00, sha e16d84fb9911)
- Data as of 2026-08-30T08:39:29.467469+00:00.