projectdoc Toolbox



Provides doctypes to document a system or software architecture based on the arc42 Template.


This free add-on for projectdoc provides blueprints to bring the arc42 Template to the Confluence team collaboration platform for easy use.

arc42 supports software- and system architects. It is based upon practical experience of many architecture projects of different sizes and domains. It includes feedback of its many users.

arc42 contains a template for development, documentation and communication of software architectures.

arc42 fits arbitrary technologies and tools.

arc42 therefore ensures better software- and system architectures.

For more information on the arc42 Template, please visit its homepage at!

arc42 is owned by
Dr. Peter Hruschka & Dr. Gernot Starke

projectdoc Toolbox makes it easier for teams to create and maintain a modular documentation they can collaboratively work with. The arc42 Template bring this modular information into a well-know structure. This enhances the usability of the architecture documentation since many software developers and architects know how to document their software and systems architecture with arc42.

So what is in for me using this add-on?

 Simply put:

Create by wizard, don't copy-paste

Space Wizard

Instead of copying spaces around, create one with the space wizard.

This will create a space with the arc42 Template.

The main page of has references to documents for each section of the arc42 template.

Get Started!


We strongly recommend to read How to document a Software Development Project to get started using the projectdoc Toolbox to work on your arc42 Template.

Add the arc42 Template

If you want to add the arc42 Template to an existing space, use the page blueprint 'arc42 SWAD'.

Page Wizard

Instead of copying pages around, just select a blueprint to create a new page based on a template like Blackbox, Architecture Decision, or Interface!

Blackbox Document in Editor


The new page contains in its sections information about how to work with the template.

Blackbox Document in View

The Blackbox in View Mode



Due to the Section Macro, the reader's view is not cluttered with sections without any information.

arc42 Template on projectdoc

Get a quick and more detailed impression on how the arc42 Template on Confluence 5 looks like!

Also check out the live example HTML Sanity Checker Architecture Documentation (based on the original example on GitHub)!

projectdoc provides  additional templates that help you document your software project that are not or only loosely related to architecture documentation.


The projectdoc Add-on for arc42 uses templates from the Core Doctypes for projectdoc (like Role or Stakeholder) and from the Software Development Doctypes (like Architecture Decision or View).

Both Add-ons are available on the Atlassian Marketplace for free. Note that the projectdoc Toolbox has a commercial license.

Please install the following add-ons in your Confluence server:

1. Install projectdoc Toolbox

List of Doctypes for Software Development

The following doctypes help to document your software projects.

# Name Short Description
The blueprint of the arc42 Template creates a tree of pages in the Confluence space.
Describe as a Blackbox the elements of a view where only the externally visible properties are relevant.
Interfaces document how elements of the system communicate with elements of this and other systems.
Describe as a Whitebox the elements of a view where only the relations of internal elements are relevant.

More useful software development templates are part of the Software Development Doctypes.

Lightweight Markup Language for arc42?

arc42 supports different formats to create your system or software architecture. While a wiki helps team members from different fields (especially fields where using a SCM server is not daily business), developers by their own often strive for a format where they do not have to install extra software and are able to check-in the documentation along with their code.

Ralf Müller manages a couple of projects on GitHub to use the arc42 Template with asciidoc.

Related Macros

The following macros are provided by this add-on.

Interface Type Macro
Selects the type of an interface.


These resources provide additional information on creating system and software documentation in your wiki using the arc42 Template and the projectdoc Toolbox.

Name Short Description Doctype
There is no one-size-fits-all for documenting software projects. What we do is giving you an introduction on how to get started with the projectdoc Toolbox and the Software Development Add-on to define your documentation requirements with Confluence.
An example of an software architecture documentation based on the arc42 Template on Confluence 5 with projectdoc and the projectdoc Add-on for arc42.
Tour through the documentation for users who want to learn to create documents based on projectdoc doctypes.
Doctypes define properties and sections for documents. They are essentially Confluence Blueprints that help to create pages in your wiki based on templates.
List of macros provided by the projectdoc Toolbox.
#arc42Track the arc42 hashtag on Twitter!-