---
type: "term"
title: "Data vs Code Boundary"
description: "A normative classification principle: Domain specific expressions (e.g., SQL, LDAP, XPath, GraphQL, template syntax, configuration languages) are treated as data unless they directly cause FEC execution via a general purpose execution engine."
resource: "tlctc:term:data-vs-code-boundary"
tags:
  - "glossary"
---
# Data vs Code Boundary

A normative classification principle: Domain-specific expressions (e.g., SQL, LDAP, XPath, GraphQL, template syntax, configuration languages) are treated as **data** unless they directly cause **FEC execution** via a general-purpose execution engine.

**Reference:** §4.2.2 (Global Definitions)