First, choose a suitable framework that will guide your process. 2 common frameworks involve mapping assumptions about:
- the present – an existing system, service or user journey
- the future – what is viable, desirable, ethical and usable for a future system, service or journey
Defining the present
To assumption map an existing system, service or journey:
- Create a table with rows labelled Doing and Feeling, like this:
- As a group, add a label for each step at the top of each column. Add as many columns as you need to
- Ask people to write what they assume the user is doing at each stage
- Then ask them to write what they assume the user is feeling at each stage
- If you want, you can add more rows for things like thinking and saying
- As you are doing this, discuss as a group why people are making those assumptions
Defining the future
To assumption map ideas you have for a future system, service or journey:
- Create 3 lists headed feasible, viable and desirable. This could be in a table, on a whiteboard, or just on a piece of paper
- Under each heading discuss and write down assumptions about an idea
- Feasible means whether you can do something (with the resources you have). Is it possible?
- Viable means whether it’s worth you doing something (or if it’s too difficult or expensive)
- Desirable means whether you and your users actually want an idea or not
- A helpful way to do this is to think about what has to be true for an idea to be placed under each heading. For example, ‘for this idea to be viable we will have to build it in 3 months’
- Repeat this for each idea you want to think about
- If you want, you can consider more headings, like ethical and usable