> For the complete documentation index, see [llms.txt](https://docs.aloop.icustomer.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aloop.icustomer.ai/introduction/core-concepts.md).

# Core concepts

A few terms show up everywhere in Audience Loop. Here's the short version — each has its own page for the detail.

* **The loop** — the always-on cycle: capture → resolve → score → decide → attribute, running continuously. See [How the Loop works](/how-it-works/how-the-loop-works.md).
* **The Harness** — the orchestrator that reasons over your context and runs the loop, on request and proactively. See [The orchestrator](/how-it-works/the-harness.md).
* **Intelligence** — what the system knows: your [context and memory](/how-it-works/overview.md).
* **AUM (Audience Under Management)** — the accounts and contacts the always-on system actively manages.
* **FIRE score** — Fit, Intent, Recency, Engagement, combined into a Hot/Warm/Cool tier. See [FIRE scoring](/using-audience-loop/explorer/fire-scoring.md).
* **Master goal & target** — your standing focus (one of six) and the time-bound objective under it. See [Master goals & targets](/using-audience-loop/overview/master-goals-and-targets.md).
* **Decision Trace** — the receipt for any action, joined to everything else by one trace ID. See [Decision Traces](/how-it-works/decision-traces.md).
* **Credits** — the unit of usage every plan includes. See [How credits work](/manage/overview-1/credits.md).


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