Some useful concepts

This page brings together some concepts that we have found particularly useful for handling knowledge.


Our WordPress blog contains several hundred articles about our work.

Link to our WordPress blog


There is a longer collection of links to useful concepts on our WordPress blog here:

Longer collection of links




Some useful concepts

Constraints and affordances: What can’t you do, and what can you do?

Design rationale: A systematic approach to design

Facet theory: Thinking about more than one set of features

Graph theory: Mapping and analysing knowledge

Knowledge modelling: How people organise their knowledge

Levels of abstraction: How people organise their knowledge into structured hierarchies

Significant absences: What’s not there can be as important as what is there

User/Person centred design: What does this really look like?

Verifier: Finding errors in research

Verifier: More on this approach


Material on this website is copyright of Hyde & Rugg unless otherwise stated.