"Markdown Architectural Decision Records" (MADR)
[ˈmæɾɚ]– architectural decisions that matter
- 2018-04-13: Mentioned in @vanto's presentation about ADRs: https://speakerdeck.com/vanto/a-brief-introduction-to-architectural-decision-records.
- 2018-04-03: Scientific publication: Markdown Architectural Decision Records: Format and Tool Support.
It should be as easy as possible to a) write down the decisions and b) to version the decisions.
This repository offers a solution to record architectural decisions. It provides files to document Architectural Decisions using Markdown and Architectural Decision Records.
The decisions are placed in the folder
- Enable GitHub pages to render it using the web. See https://help.github.com/articles/configuring-a-publishing-source-for-github-pages/ for more information.
- Separate the architectural decisions from other documentation.
The filenames are following the pattern
NNNN-title-with-dashes.md (ADR-0005), where
NNNNis a consecutive number and we assume that there won't be more than 9,999 ADRs in one repository.
- the title is stored using dashes and lowercase, because adr-tools also does that.
- the suffix is
.md, because it is a Markdown file.
Table of Contents
The template reads as follows:
# [short title of solved problem and solution]* Status: ] <!-- optional -->* Deciders: [list everyone involved in the decision] <!-- optional -->* Date: [YYYY-MM-DD when the decision was last updated] <!-- optional -->Technical Story: [description | ticket/issue URL] <!-- optional -->## Context and Problem Statement[Describe the context and problem statement, e.g., in free form using two to three sentences. You may want to articulate the problem in form of a question.]## Decision Drivers <!-- optional -->* [driver 1, e.g., a force, facing concern, …]* [driver 2, e.g., a force, facing concern, …]* … <!-- numbers of drivers can vary -->## Considered Options* [option 1]* [option 2]* [option 3]* … <!-- numbers of options can vary -->## Decision OutcomeChosen option: "[option 1]", because [justification. e.g., only option, which meets k.o. criterion decision driver | which resolves force force | … | comes out best (see below)].### Positive Consequences <!-- optional -->* [e.g., improvement of quality attribute satisfaction, follow-up decisions required, …]* …### Negative Consequences <!-- optional -->* [e.g., compromising quality attribute, follow-up decisions required, …]* …## Pros and Cons of the Options <!-- optional -->### [option 1][example | description | pointer to more information | …] <!-- optional -->* Good, because [argument a]* Good, because [argument b]* Bad, because [argument c]* … <!-- numbers of pros and cons can vary -->### [option 2][example | description | pointer to more information | …] <!-- optional -->* Good, because [argument a]* Good, because [argument b]* Bad, because [argument c]* … <!-- numbers of pros and cons can vary -->### [option 3][example | description | pointer to more information | …] <!-- optional -->* Good, because [argument a]* Good, because [argument b]* Bad, because [argument c]* … <!-- numbers of pros and cons can vary -->## Links <!-- optional -->* [Link type] [Link to ADR] <!-- example: Refined by [ADR-0005](0005-example.md) -->* … <!-- numbers of links can vary -->
The template is available at template/template.md.
# Use Markdown Architectural Decision Records## Context and Problem StatementWe want to record architectural decisions made in this project.Which format and structure should these records follow?## Considered Options* 2.1.0 - The Markdown Architectural Decision Records* - The first incarnation of the term "ADR"* - The Y-Statements* Other templates listed at <>* Formless - No conventions for file format and structure## Decision OutcomeChosen option: "MADR 2.1.0", because* Implicit assumptions should be made explicit.Design documentation is important to enable people understanding the decisions later on.See also .* The MADR format is lean and fits our development style.* The MADR structure is comprehensible and facilitates usage & maintenance.* The MADR project is vivid.* Version 2.1.0 is the latest one available when starting to document ADRs.
The example is rendered at template/0000-use-markdown-architectural-decision-records.md
For the MADR project itself, all ADRs exist at docs/adr/.
Apply it to your project
docs/adr in your project.
Copy all files in
template from the MADR project to the folder
docs/adr in your project.
For instance, using
npm, this can be done using the following command:
npm install madr && mkdir -p docs/adr && cp node_modules/madr/template/* docs/adr/
Create a new ADR
NNNNindicates the next number in sequence.
index.md, e.g., by executing
adr-log -d .You can get adr-log by executing
npm install -g adr-log.
Note you can also use other patterns for the directory format, but then the tools cannot be applied.
- MADR follows Semantic Versioning 2.0.0 and documents changes in a
CHANGELOG.mdfollowing keep a changelog 1.0.0.
- Issues can be reported at https://github.com/adr/madr/issues.
- Use the Markdown Style Guide space-sentence:1, wrap:sentence, header:atx, list-marker:asterisk, list-space:1, code:fenced
Releasing a new version:
README.mdwith the new template and the example.
- Adapt the version reference in
package.json, publish to npmjs, create GitHub release.
Use release-it (do not create a release on GitHub) and github-release-from-changelog.