When you cook a chilli con carne for the first time, you might start off with a recipe that you like. But once you've burned your tongue a few times, you tweak the original recipe to your own needs and taste.

That's why the Double Diamond process, initially released by the British Design Council, is used. This framework has good structure, clarity and dynamics.

The Double Diamond is a structured design approach to tackle challenges in four stages: 

1. Discover /Research — insight into the problem (diverging)
2. Define/Synthesis — the area to focus upon (converging)
3. Develop/ Ideation — potential solutions (diverging)
4. Deliver /Implementation — solutions that work (converging)

The phases are either diverging (open up as much as possible) or converging (condensing or narrowing your ideas). 

• Try to question the brief or your initial question by challenging every part. List as many elements as you can, find characteristics, define areas of interest. List places, people, experiences that are related and can be explored.
• Cluster your findings into topics to get an overview. You might have to limit yourself in terms of the scope you want to research.
• Dive into your research. Apply primary and secondary research methods.

This should result in a pile of unstructured research findings.

To make sense of your findings, you want to synthesise your research by applying the following steps:

• Download all your research.
• Cluster learnings and similarities to themes.
• Find insights(the consumer's motivations or frustrations) and build opportunity areas (a phrasing of the potential area of action).
• Create HMW questions (How Might We). These are tangible statements of what is to be done.

This should result in a revamped brief that clarifies or details the initial brief or contradicts it.

As you have deduced the actual question to solve or challenge, you start ideating.

• Ideation: You should approach ideation with an open mind and not limit yourself. Apply a "yes, and..." approach, not a "yes, but..."
• Evaluation: At the end of ideation, select your favourite ideas. Each team member votes for ideas or use feasibility matrices.

You ought to end up with a small number of ideas to prototype and test to find the best solution.

Once you have a potential solution (or set of ideas), you want to evaluate the final one and the way it needs to be implemented. An agile approach can be used consisting of three steps:

1. Build/Prototype  
2. Test/Analyse  
3. Iterate/Repeat

Aim for minimum viable products so that you can see if it solves the initial problem. Thereafter, you should be able to go out with your final solution or product.  

• The Double Diamond is just one approach. It's supposed to be challenged, questioned and iterated upon.
• The process is not linear. You need to be open to go back and forth at any point.
• The focus in this article is on the general structure of the process, not on all the individual tools and methods.