The Law of Requisite Parsimony is of the seven laws of the Science of Dialogic Design.
On the meaning of the terms
Requisite is a thing that is necessary for the achievement of a specified end. Something that is indispensable; a requirement. For example Algebra is a requisite for taking calculus. Parsimony is the quality of being very unwilling to spend money. In the context of discussing complex problems, the meaning is about being careful not to overload the cognitive abilities of the participants. The Greek term that best fits the meaning is φειδώ (Example: Η κατανάλωση νερού και ρεύματος, πρέπει να γίνεται με φειδώ).
Attributions
Miller 1956 Warfield 1988
bounded rationality Bounded rationality is the idea that in decision-making, rationality of individuals is limited by the information they have, the cognitive limitations of their minds, and the finite amount of time they have to make a decision.
https://en.wikipedia.org/wiki/Bounded_rationality
Miller, G. A. 1956. The magical number seven, plus or minus two: Some limitations on our capacity
for processing information. Psychology Review 63:81–97.
Warfield, J. N. 1988. The magical number three, plus or minus zero. Cybernetics and Systems
19:339–358.