Four standards.
One editorial workflow.

S1000D

Issue 5.0

Aerospace · Defense · Heavy industry

Complexity · High

Profile rules by default · formal schema when official assets are attached

International specification for technical publications using a Common Source Database. Codex supports S1000D-shaped authoring, native DMC parsing, applicability cross-references, and IPC integration; formal validation depends on attached XSD and BREX assets.

JSG

JSG-0852

Military structured manuals

Complexity · Medium

Profile rules · formal compliance requires a customer or authority supplied validator

Joint Service Guide-style structured documentation for maintenance manuals and operator handbooks. Codex provides JSG profile editing, local profile validation, and PDF generation; it does not claim formal JSG compliance without an authoritative rule pack.

DITA-OT

DITA 2.0

Software · Hardware · Modular content

Complexity · Medium

External DITA-OT validator when installed · profile fallback otherwise

Darwin Information Typing Architecture toolkit support with topic/map structure, conref reuse, and customizable transforms. Formal validation uses DITA-OT when it is installed in the runtime.

BASIC

Codex Lite

Internal SOPs · Quickstarts · Training

Complexity · Low

Template checks only

A simplified internal format that gets non-XML teams shipping in minutes. Promote Basic content into S1000D, JSG, or DITA when you're ready — no rewrite required.