A coordinate grid emerging out of a cell-like lattice structure, echoing a vocabulary built up from first principles

Foundations of the Locus Language

Course overview

Every economic classification system in general use answers one question: what industry is this business in? None of them answers what a business functionally does, or where that falls in the order of work. This course is the entry point to the vocabulary that does — the root theory, the framework, the language, and the one piece of notation (Diversified) that lets all of it describe a range rather than a single fixed value.

Start here before Systems Economics or the Lexicon stop making sense as a system rather than a list of terms.

Key themes

Functional coordinates versus industry categories, the Locus Model as the settled governing frame (and why an earlier candidate for that position was walked back), the Locus Language’s grammar of activities-as-verbs and resources-as-nouns, and the Diversified notation that lets any term in the language admit a range of values instead of one.

Intended audience

Anyone starting the lexicon from zero — readers who want the underlying logic before the applied material in later courses (barcodes, classification, functional information systems).

In this course

Five articles, read in order.

01 · Root term

Locus Theory & the Theory of Economic Systems

The comprehensive systems theory everything else in the lexicon sits under, stated in two branches of unequal weight.

Locus Theory · Theory of Economic Systems

02 · Preface

Why Systems Economics Exists

The founding claim, stated plainly: industry classification answers the wrong question.

Systems Economics · Locus Model

03 · Frame · ● Live now

The Locus Model

The settled governing frame for the entire vocabulary, and the one term that has cleared every qualification check run against it.

Locus Model · Functional Coordinate System · Natural Functional Order

04 · Pillar

The Locus Language

The formal language itself: a lexicon of valid words and a syntax for combining them into full statements about economic activity.

Locus Language · Locus · Systems Syntax

05 · Spoke

Diversified: The Locus “Div” Notation

The notation representing a range of admissible values for an activity or resource.

Diversified (Div)

Lexicon terms in this course

Each article above is a deep dive on one or more entries from the Lexicon. This course’s core terms:

Continue the reading path

This is the first of seven courses tracing the full lexicon, from this foundational vocabulary through the applied classification system and its commercial extension. Continue to Activities & Resources: The Grammar. For the full term-by-term specification, see the Lexicon.

Only serious, qualified inquiries. For speaking, consulting, or collaboration on any of these strands, describe the problem you are trying to solve.

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