A theory of change captures some crucial details about why a system, service or intervention is necessary and what it aims to achieve. 

As well as laying the foundation for evaluation, to test whether the service has achieved what was intended, a theory of change also enables you to recognise and start to address any uncertainties or risks in your plans, ensure everyone involved is on the same page, communicate the rationale for your approach, and clarify and refine existing programmes and services.

One popular and useful way of guiding the development of a theory of change is through a workshop, bringing together different voices and perspectives from across a local system or around a particular service or intervention.

This two-page quick reference sheet provides a session plan, tips and key links for anyone planning or running a theory of change workshop. It includes:

• Questions to ask before you begin
• Handy preparation resources, for facilitators and participants
• Six suggested sessions, with recommended themes and activities for each session
• Tips
• What next?