Four main features 4

Definition of Model. Proper name is the simplest model. 5

The Structured Analysis Maxim explained 6-10

The Structured Analysis Box and its Formal Saying 11,31,12

"ICOM" meanings — what ICOM Codes code! 13-15

SA Arrows bundle; only SA Boxes interface; both nest 16,17

SADT A&D modeling, SA Tied together, for completeness 18-20

Definition of Possibility — the reality of hollow arrows 21,22

ICOM codes for both ways to make SA Nodes 23

The Node Number coordinate system; typical modeling 24,25

Arrow meaning and Tunnelled arrows 26,27

Concept Engineering with Picture Language Models PLMs 28

SA’s "ALGEBRA" : Arabic = "Reduction of parts to whole"? 29

MUST SEE! — Concept Engineering 30

AUT’s Complete Technology — a new mindset listed 32

Plex’s Exact Definition Nominal Reality (of named things) 33-36