# Derivative Asset Pipeline A derivative asset pipeline turns one canonical source into controlled outputs such as pages, images, feeds, indexes, excerpts, previews, and search objects. AutoSites' quote and passage system is a semantic derivative pipeline: authoring marks select meaningful units, deterministic names make them addressable, poster templates create visual assets, and feeds distribute them. Provenance and generated-region ownership keep derivation from becoming uncontrolled duplication. Related: [[wiki/Content Atomization|Content Atomization]], [[wiki/Rebuildable Projection|Rebuildable Projection]], [[wiki/Provenance|Provenance]].