- A design rule is a theory on how to build things an artefact of a given kind. (Note DSchneider is not sure whether we should use singular or plural for a set of several connected rules ...)
- "A technological rule: an instruction is defined as a chunk of general knowledge, linking an intervention or artifact with a desired outcome or performance in a certain field of application". Bunge (quoted by Järvinen:99)
- Synomyms: technological rule, design principle
2 Design rules in educational technology
.... and how to to combine these within iterative, user-centered research and development approaches.
Pertti Järvinen: On Research Methods. Tampere: Opinpajan Kirja, ISBN 952-99233-1-7