> For the complete documentation index, see [llms.txt](https://help.cubelet.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.cubelet.ai/platform-and-integration/glossary.md). # Glossary *Canonical taxonomy for cubelet.ai — v2, July 2026. Supersedes the April 2026 version.* Each term includes its **conceptual synonym** (the idea behind it) and its **shipped UI label** (what the product calls it). Where they differ, both are correct; prefer the shipped label in learner-facing docs and the conceptual synonym in design and architecture discussions. *** ## Content layer — what you have ### Cubelet *Conceptual synonym: Lesson — Shipped label: Cubelet* A **knowledge atom** — the smallest reusable unit of learning content on the platform. * Has exactly **6 faces**: WHAT, WHY, HOW, WHERE, WHEN, APPLY. * Maps **1:1 with a Competency**. * Produced by the `cubelet_produce` pipeline; must clear the quality gate (42/60, 6+ per face, no face at zero) before it reaches a learner. * Not the output of the simulator pipeline. Simulator output is a Case, never a Cubelet. > The APPLY face is the bridge from Cubelet to Case: it presents the judgment drill entry point ("06 · APPLY — Judgment simulator — Start →"), from which a learner steps into a War Room to run the associated Case. *** ### Case *Conceptual synonym: Lab — Shipped label: Case* A **judgment exercise** — a scenario a learner works through to demonstrate applied judgment against Ground Truth. * Composed of a **fictional organization × practices × Ground Truth**. * Comes in forms matched to the domain: Business Cases, Legal Cases, Compliance Cases, etc. * Produced by the **simulator pipeline** (not `cubelet_produce`). * Executed inside a **War Room**; scored against Ground Truth. * A passed Case generates a credential entry on the learner's Passport. > **Do not confuse with a Cubelet.** A Cubelet teaches a competency (study); a Case tests judgment against a scenario (performance). "Lab" is the conceptual synonym for Case; in the shipped product, the surface label is Case. *** ## Collection layer — where you browse ### Catalog *Conceptual synonym: Library — Shipped label: Catalog* The **registered collection of Cubelets and Cases** available on the platform. * Backed by **Neo4j** (graph edges) + **R2** (content storage). * **Dual-write contract:** an item is registered in the Catalog only when both the Neo4j edges and the R2 content are written. A partial write is not a valid registration. * The in-app browse surface is the **Catalog** tab (`/catalog`). * Inside the Cubelet reader, the **Library panel** (opened via the ⊞ Library button) shows the learner's personalized view of the same collection — their entitled domains, mastery progress, and the Cubelets within each path. > "Library" is the conceptual synonym for the collection as a whole. In the shipped UI: the browse surface is called the Catalog; the reader panel that surfaces the learner's view of it is called the Library. Both refer to the same registered collection. *** ## Performance layer — where you step in ### Room *Conceptual synonyms: Stage, Holodeck — Shipped label: Room* A **category of event-space** — an immersive environment a learner steps into to participate in a structured event. Rooms are where performance happens; the Catalog is where content lives. Rooms are accessed via the **top-bar room button** (labeled ◉ Coaching Room on most pages; ⚡ Scaffold Room on Home). Pressing ⌘K opens a generic command palette, not the Room chooser. #### War Room — judgment event A learner takes **Ground Truth** and applies it to a simulated Case. The War Room conducts a structured interview (evidence gathering, challenge, reasoning check), then scores the determination against Ground Truth. A passed War Room session feeds the learner's Passport. This is the primary execution surface for Cases. #### Coaching Room — 1:1 guidance event A private session with an AI coach. Open-ended: the learner brings questions, works through concepts, gets unstuck. Default Room outside Home. #### Seminar Room — 1:many instruction event A structured teaching event with multiple participants. One facilitator, many learners; content is delivered and discussed in session. > Other Room types include: Lab Room, Debrief Room, Scaffold Room (Home diagnostic), voice variants, and domain simulators (ISACA Practice Drill, VulnOps Judgment Simulator, AI Governance Simulator). The defining characteristic of all Rooms is that you *step into* them for an event — not to browse content. *** ## Credential layer — what you earn ### Passport *Shipped label: Passport* The learner's **credential surface** — a verifiable record of proven outcomes. * Issues **W3C Verifiable Credentials** for passed Cases (demonstrated judgment), not study activity alone. * Three verification tiers: **L1 Internal**, **L2 Partner**, **L3 Auditor**. * Public share link: `passport.cubelet.ai/{entityId}`. QR and CLR available once credentials compile. *** ## Diagnostic layer — where the journey starts ### Gap The **delta between a learner's current mastery and the mastery a competency requires.** * Surfaced by the **Scaffold** diagnostic (PJRC: Pattern, Judgment, Relationship, Creative). * The gap in the platform tagline: *"Know the gap. Prove the judgment."* — Gap = what you don't yet know; judgment is proven through Cases and recorded in the Passport. *** ## The learner journey **Scaffold → Pursuit → Passport** * **Scaffold** — diagnose the gap (PJRC Formation Portrait). * **Pursuit** — close it through mastery-paced Cubelet study and Case practice (the "In Progress" surface in the app). * **Passport** — credential the proven outcomes. *** ## Supporting concepts ### Competency The atomic skill or knowledge unit that a **Cubelet maps 1:1 to**. Competencies are the organizing principle of the Catalog. ### Ground Truth The authoritative correct answer embedded in a Case. During a War Room session, a learner's determination is scored against Ground Truth. Ground Truth is never revealed to the learner before scoring. ### Framework taxonomy Every piece of content on the platform belongs to a 4-level hierarchy. The leaf level is where a Cubelet lives. **Framework (Fx)** — the top-level certification, standard, or discipline. Examples: CMMC, CISA, CISM, CRISC, CDPSE, NIST AI RMF, ISO 42001, EU AI Act, TRAIGA, VulnOps. Each Framework is independently certifiable. The learner-facing section label is **Frameworks**. ISACA Tri-Cert and AI Governance are **entitlement families** (catalog groupings) — not a 4th taxonomy level; each member Framework has its own independent taxonomy. **Domain** — the top division within a Framework (Level 1). Terminology varies by archetype: CMMC calls this "Domain" (e.g. Access Control); NIST AI RMF calls it "Function" (e.g. GOVERN); ISACA frameworks call it "Domain" (e.g. Domain 1 — Governance). **Practice / Requirement** — the actionable unit within a Domain (Level 2). What practitioners work toward. Examples: CMMC `AC.L2-3.1.1`; NIST AI RMF `GOVERN 1.1`; CISM Task 1.1. **Assessment Objective** — the specific, measurable outcome within a Practice (Level 3). This is the **Competency leaf** — the unit a Cubelet maps 1:1 to. The hierarchy: Framework (Fx) → Domain → Practice / Requirement → Assessment Objective (= Cubelet). ### Face One of the **6 dimensions of a Cubelet** (WHAT, WHY, HOW, WHERE, WHEN, APPLY). Every Cubelet has all six faces; the quality gate requires 6+ per face with no face at zero. ### Dual-write contract The rule that Catalog registration requires **both** a Neo4j edge write and an R2 content write. See **Catalog**.