# PAG Structure Declaration

> Make a document's structure explicit with the declaration that names it: a DAG for a dependency graph, a STATE_MACHINE for a lifetime or a set of derived states, a PRIORITY_QUEUE for a ranking, a FLOWCHART for the rendered projection of a declared structure, and for a shared surface the coordination model's SURFACE, RECORD and ITEM with their typed edges, derived states and the one post-and-wait operation, so ordering, ownership and state are declared as structure rather than narrated as prose.

Record: `algorithms:pag-coordination-construct`
Kind: algorithm
Canonical: https://banes-lab.com/ontology/algorithms#algorithms-pag-coordination-construct
Closure: https://banes-lab.com/json/records/algorithms/pag-coordination-construct/closure

Listed in [Algorithm contracts](https://banes-lab.com/api/records/algorithms.md), after [PAG Semantic Operation](https://banes-lab.com/records/algorithms/pag-tool-invocation.md) and before [PAG Ambiguity Reduction](https://banes-lab.com/records/algorithms/pag-ambiguity-reduction.md).

## Domain

- [Pattern Abstract Grammar](https://banes-lab.com/records/algorithms-domain/pag.md)

## Stage

- [project](https://banes-lab.com/records/stage/project.md)

## Axis

- [reasoning](https://banes-lab.com/records/reasoning/axis-reasoning.md)

## Tier

- [process](https://banes-lab.com/records/vocabulary/domain-tier-process.md)

## Composed by

- [PAG Authoring Kernel](https://banes-lab.com/records/algorithms/pag-authoring-kernel.md)

## Math type

- [Graph](https://banes-lab.com/records/reasoning/math-type-graph.md)

## Force

- [Causality ordering](https://banes-lab.com/records/force/causality-ordering.md)
- [Control coordination](https://banes-lab.com/records/force/control-coordination.md)
- [Event messaging](https://banes-lab.com/records/force/event-messaging.md)

## Linked from

- [Pattern Abstract Grammar](https://banes-lab.com/ontology/algorithms/algorithms-domain-pag.md)
- [The derivation loop](https://banes-lab.com/ontology/reasoning/reasoning-loop-derivation-loop.md)
- [The axes](https://banes-lab.com/ontology/reasoning/the-axes.md)
- [The mathematics](https://banes-lab.com/ontology/reasoning/the-mathematics.md)
- [Domain tiers](https://banes-lab.com/ontology/schema/the-vocabulary-domain-tier.md)
- [The forces](https://banes-lab.com/ontology/schema/the-forces.md)