An Opportunity Solution Tree (OST) is a visual tool that helps product teams during continuous discovery to structure and document the problem-solving and innovation process.
An OST is organized as a hierarchical tree diagram, with the intended business outcome as the root node on top:
From that top-level node, the tree branches out to map all the different opportunities – a generalized term to represent both, customers' pains and gains. Several layers of opportunities may be used to cluster related pains and gains.
Once these opportunities have been clarified, they are prioritized and only then starts the search for solutions to the most important opportunities.
Experiments are defined for each potential solution. In her book, Teresa actually called them assumptions, making it clearer that these assumptions must be validated before a solution can be implemented.
Here is the typical process for creating an Opportunity Solution Tree:
Focus on a specific outcome, i.e., a business objective you want to achieve.
Conduct user research to understand the needs and pain points of your customers and represent them as opportunities. In doing so, distinguish different user personas and user journeys.
Group related opportunities to form clusters.
Prioritize and select the most important opportunities to start working on.
Ideate to find solutions. In doing so, be very open-minded as to how a solution might look like. However, every solution needs to link to an opportunity – because otherwise, it doesn’t serve our goals.
For each potential solution, make the underlying assumptions explicit and organize experiments to validate these.
In reality, as often in Product Discovery, creating an OST is a continuous, non-linear process.
Furthermore, we have often experienced situations where a solution would serve multiple opportunities, or where a low-level opportunity would support multiple higher-level goals. Hence, we would not be dogmatic and require an OST to be a real tree – when it could also be a directed graph.
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Simply put, an OST is a visual plan for how you will then reach a clear desired outcome.