Sources of Snippets (text quotes/extracts)

A Source is an authoritative document such as a specification, technical manual, or design manual from which Snippets (short text quotes) are extracted. Each Source page links to its Snippets.

Arduino Mega 2560 Rev3 interactive board viewer

Datasheet: Atmel ATmega640/V-1280/V-1281/V-2560/V-2561/V

Arduino Mega 2560 Rev3 Pinout Diagrams (PDF)

Wiktionary

OMG Systems Modeling Language TM (SysML®) Version 2.0 Release 2021-02

Modelica By Example

SysPhS-1.1

'Origins of the Digital Twin Concept', August 2016, Dr Michael Grieves

ANZLIC 2019 - Principles for Spatially Enabled Digital Twins of the Built and Natural Environment in Australia

Wikipedia

Object Constraint Language Version 2.4

Action Language for Foundational UML 1.1

Semantics of a Foundational Subset for Executable UML Models 1.4

OMG Systems Modeling Language (SysML) 1.6

Unified Modeling Language 2.5.1