design theory
preferred label: نظریه طرح‌ها @fa
type: Concept
narrower: trade

trade
narrower: proper trade
narrower: tradeoff method
broader: design theory
preferred label: ترید @fa
type: Concept

tradeoff method
preferred label: روش معامله @fa
type: Concept
broader: trade

proper trade
preferred label: ترید سره @fa
type: Concept
broader: trade