association schemes
preferred label: طرح‌های وابسته @fa
type: Concept
narrower: cometric scheme

Johnson scheme
preferred label: طرح جانسون @fa
type: Concept
related: cometric scheme

t-design
preferred label: t-طرح @fa
type: Concept
related: cometric scheme

Hamming scheme
preferred label: طرح همینگ @fa
type: Concept
related: cometric scheme

cometric scheme
related: Johnson scheme
related: Hamming scheme
related: q-polynomial scheme
related: t-design
broader: association schemes
preferred label: طرح هم‌متریک @fa
type: Concept

q-polynomial scheme
preferred label: طرح q-چندجمله‌ای @fa
type: Concept
related: cometric scheme