A3 architecture overviews

The A3 method is an excellent tool to capture the relevant architectural aspects for a specific goal, such as an architectural refactoring or hand over of responsibilities.

A few years ago, the A3 method was developed by the University of Twente, together with ESI and Philips. Since then, it is successfully applied within many other companies.

More information about this method:

A3 Architecture Overviews. PhD thesis of P. Daniel Borches A3 architecture overviews

Cookbook A3 Architecture Overviews Cookbook (including template - Visio file)

• Example case: Camera case Camera case

Embedded Systems Innovation by TNO (TNO-ESI)


TNO-ESI is a leading Dutch research group for high-tech embedded systems design and engineering. It has a close cooperation with high-tech industry, as well as a strong association with fundamental research of academia, both national and international.

TNO-ESI contributes to society and economy by driving advances in high-tech systems technology, with a strong shared research programme, dedicated innovation support, a focused competence development programme, and various knowledge- and experience-sharing activities.