Design Thinking is NOT a linear or a cyclical process. You can go back and forth between stages at any time. It is an iterative process. The more you do this, the closer you get to an outcome which will really work for the people it is designed for.
This video gives a good overview of the stages inside of a practical context.
EMPATHISE
Find out more about the people you are designing a solution for.
This is not about asking people what they want, because they may not know. It is about immersing yourself in the world of the person you are solving a problem for and really understanding the actual problem. You may, in fact, find a different problem to solve.
What do my learners do?
Observe
Consider other points of view
Consult experts
Conduct interviews
DEFINE
Based on what has been observed, define what the actual problem is.
The defined problem needs to be:
human/user-centred
broad enough for creative freedom
narrow enough to be manageable
These sentences act as a good framework for defining a problem:
__________________ is a challenge for ____________ because _____________________.
__________________ needs a way to ______________ because _____________________.
How might we ________________ for _________________ in order to _______________?
IDEATE
Come up with ideas to solve the problem
there are no limits
no idea is a bad idea
come up with as many ideas as possible
the ideas can be products, systems, experiences or services.
PROTOTYPE
Design a model which you can test with your users
The prototype needs to be:
quick
cheap
easy to make
a general idea rather than specific detail
TEST
Test the model with your users
When testing you need to
observe
be impartial
ask for "I like..." and "I wonder..." responses
ask questions to clarify