The Systems Engineering Concept Model working group is currently embracing 3 different but related models:

1. The SE Concept Model originally prepared for the UML4SE RFP, circa 2003
2. An extraction of the SysML 1.4 meta-model to explicitly reveal SE concepts that it supports
3. A new top-down SE Concept Model (referred to as SECM) that elaborates the other models with what we have learned as SysML and MBSE practitioners.

• SECM GitHub
• Original SE Concept Model History and Baselines (UML for SE RFP)

• UML 4 Systems Engineering RFP requirements and terms, MagicDraw 18.1 20150630 This model includes requirements from sections 6.5, 6.5, and 6.8 of the UML for SE RFP, and definitions from the April 1, 2003 definitions list, which is more inclusive than the RFP appendix.

• SE Concept Model Baseline in MagicDraw 18.1, 20150224 This one is much more readable, includes Dave Oliver's cross-reference numbers. It also includes the powerpoint, xls, and csv files at attached files.

• SE Concept Model in MagicDraw 18.1, 20150122 This was an early version, only provided here for reference.

• Web Publisher 2.0 output of 20150224 Baseline Model Download, copy to your desktop and unzip. Don't unzip it in your downloads folder, be sure to unzip it on your desktop! Even at that, it still may not work.

• SysML Web Reports output of 20150224 Baseline Model Download as above. This is a simplified interface, and hopefully it will work better.

• Baseline SE Concept Model Definitions csv file

• Part 1 Discussion: SECM 030315

• Part 2 Discussion: SECM 031815

• SECM Part 1: Intro

• SCEM Part 2: Kernel Base Concepts