Design
type: Concept
preferred label: طراحی @fa
related: Material development

Teaching material
type: Concept
preferred label: ماده آموزشی @fa
related: Material development

Material development
type: Concept
broader: Development
preferred label: توسعه مادی @fa
related: Design
related: Readability
related: Teaching material

Development
type: Concept
narrower: Material development
preferred label: توسعه @fa

Readability
type: Concept
preferred label: خوانایی @fa
related: Material development