nasa-systems-modeling pack — content licence
=============================================

This pack is derived from:
    NASA Systems Modeling Handbook for Systems Engineering
    NASA-HDBK-1009A, Revision A
    Office of the NASA Chief Engineer, NASA — Approved 2025-03-12

Source licence: Public Domain (US Government work, 17 U.S.C. 105)  (tier 1 — see ../../docs/SOURCE-VETTING.md)
No source-material download link is published (see ../../docs/LICENSING.md).

This source is a NASA Technical Handbook, a work of the United States Government, marked
"APPROVED FOR PUBLIC RELEASE — DISTRIBUTION IS UNLIMITED." As a US Government work it is
NOT subject to copyright protection in the United States (17 U.S.C. 105) and is in the
public domain: anyone may reproduce, transform, and redistribute it for any purpose,
including commercially, without permission. Attribution to NASA is provided as a courtesy
(see the repository NOTICE), not a legal obligation. NASA does not endorse this pack or
its authors.

TRADEMARK / TRADE-NAME NOTICE (reproduced from the source). The handbook states: "Trade
names and trademarks are used in this NASA Technical Handbook for identification only.
Their usage does not constitute an official endorsement, either expressed or implied, by
NASA." This pack carries that same notice. Tools named in the source — MagicDraw (the
companion-model tool) and CATIA No Magic, a Dassault Systèmes product (the diagram tool) —
are identified for illustration only and are NOT endorsed by NASA or by this pack. The
modeling method is explicitly tool-agnostic.

THIRD-PARTY MATERIAL CAVEAT. The handbook illustrates its metamodel using the OMG Systems
Modeling Language (SysML), Version 1.7 (also published as ISO/IEC 19514), which remains the
COPYRIGHT of the Object Management Group (OMG) and is NOT in the public domain. That
third-party material is not reproduced here. This pack contains only synthesized,
transformed reference notes that NAME the SysML diagram types, pillars, and the bracketed
`[type]` convention, and describe in original words how NASA's NPR 7123.1-derived metamodel
maps systems-engineering elements onto SysML. The OMG SysML specification text, figures,
and tables are NOT reproduced. SysML® and OMG SysML® are trademarks of the Object
Management Group.

NOTE: This file governs the CONTENT of this pack. The repository tooling is licensed
separately under MIT (see ../../LICENSE).