The CACTIS (COM-B Assessment Criteria To Intervention Strategy) tool aims to help behavioural researchers and practitioners to use the COM-B model, the Behaviour Change Wheel (BCW) and the Behaviour Change Technique Ontology (BCTO) to develop an intervention strategy.

It is not an alternative to the BCW workflow but rather a tool to help users to implement it.

CACTIS takes the form of an HTML file that you can run from our website or download and run on your local computer.

When you access the tool, please carefully read the instructions!

Click here for a paper setting out the development of CACTIS, which also covers some core features of an updated COM-B model on which CACTIS is based.

The latest version of CACTIS is Version 1.8.3. It is a significant upgrade on previous versions but is backwards-compatible with Version 1.7.2 in terms of saved projects. However, if you want to keep using Version 1.7.2 here is a link.

Click here for a record of CACTIS developments and proposed changes from Version 1.7.2 onwards.

If you would like training on the CACTIS tool, or consultancy to help use it in developing an intervention, go to the Training and Contact Us tabs.