Use cases are sexy – or at least they should be.
Recently, I co-led a workshop series on omnichannel orchestration use cases and was reminded how pivotal they are to both business and user success. Beyond defining requirements, use cases cut through ambiguity, align teams, and accelerate value realization. The group agreed resoundingly that gaining a deeper understanding of how different functions contribute to the overall solution helped in decision making about alignment. To me, the rare level of shared vision, commitment, and engagement was a great example of how important cross-functional collaboration is to project success.
At a Microsoft + EPAM event on AI that I attended, three main foundational friction points were called out: infrastructure readiness / maturity, having well defined user/customer experiences as a compass, and aligning on the right use cases.
So what are the ‘brilliant basics’ of use cases?

Why: Use cases can be “sexy” because they transform abstract concepts into tangible, high-value solutions. They help translate business needs into actionable requirements, bridge the gap between technical and business teams, and provide clarity on priorities, sequencing, and desired outcomes.
What: A use case describes how people (“actors”) interact with systems (technology / data / AI) to achieve a specific goal. Through both visual and narrative formats, use cases reduce complexity, validate real-world viability, and turn vague ideas into documented business, data, and technology requirements. They provide enough detail for planning and decision-making without getting lost in implementation specifics.
When: Early and often. Complex solutions require thoughtful planning, making early collaboration essential. Bringing stakeholders together at the start helps avoid rushed decisions, misaligned priorities, and suboptimal adoption. Regular check-ins keep teams focused on user needs, business KPIs, and desired outcomes.
Who: People are the secret sauce. Successful use cases require stakeholders to align on objectives and expectations – failing to do so often creates friction and weakens outcomes. Development teams gain a clearer understanding of the business problem they are solving, helping to prioritize and design more effectively. Business teams gain insight into technical considerations, enabling smarter investment decisions and more realistic planning. The result is a stronger partnership focused on shared goals.
Asking the right business questions is always the best place to start, which then shapes effective use cases. Taking the time to bring cross-functional teams, and leadership, along in the journey is equally important. Having internal talent that are fluent in user stories and use cases, and that understand customer experience, is key. Including change management and optimization processes as part of execution and continuous learning helps in achieving sustained, repeatable and scalable solutions.