Affinity diagramming has long been used in business to organize large sets of ideas into clusters. In UX, the method is used to organize research findings or to sort design ideas in ideation workshops.
The goal of accessibility is to design & code digital products, services in a way that users with disabilities are able to use them. Your context or temporary condition and limitation also affect the way you use a product.
Proof of concept in software development is a controversial topic. The person that came up with a software idea is usually convinced of its relevance. And stakeholders usually don't want to spend time on something that is not even going to be included in the final product.
Startups, Biz Dev
Proof of Concept in Software Development
Knowledge
Stakeholder Interview — UX Knowledge Base Sketches
At the beginning of a UX research and design project a Stakeholder Interview should be conducted to find out the Business Goals, Existing Research including User Research, Competitors and Technological Limitations.
Interviews
Stakeholder Interview — UX Knowledge Base Sketches