> ## Documentation Index
> Fetch the complete documentation index at: https://aletyx.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# How-To Guides

> Task-focused guides for Aletyx Decision Control Tower, the governance portal — each guide answers a single "how do I…?" question with the shortest path to done.

Task-focused guides for Aletyx Decision Control Tower, the governance portal. Each guide answers a single "how do I…?" question with the shortest path to done.

<Info>
  **Keystone Edition Only**

  Aletyx Decision Control Tower is exclusively available in the **Keystone Edition** of Decision Control. Once provisioned, the portal exposes all of its features - the UI itself does not gate features by edition.
</Info>

<CardGroup cols={2}>
  <Card title="Sign in & Global" icon="log-in" href="/docs/decision-control-tower/how-to/sign-in-and-global">
    Sign in (SSO or username), sign out, switch theme, and view the About dialog.
  </Card>

  <Card title="Environments" icon="cloud" href="/docs/decision-control-tower/how-to/environments">
    Browse, filter, tag, and launch your Decision Control environments.
  </Card>

  <Card title="Promotions" icon="upload" href="/docs/decision-control-tower/how-to/promotions">
    Create, track, open, and cancel promotion requests through a governed workflow.
  </Card>

  <Card title="Governance Tasks" icon="clipboard-list" href="/docs/decision-control-tower/how-to/governance-tasks">
    Approve, reject, request changes, resubmit, cancel, and annotate tasks.
  </Card>

  <Card title="Promotion History" icon="history" href="/docs/decision-control-tower/how-to/audit-trail">
    Inspect a promotion's timeline, full history, and per-task detail.
  </Card>
</CardGroup>

## Access and visibility

What you can do in Aletyx Decision Control Tower depends on **what access your administrator gave you**. Your organization picks its own role names, but those roles map to three kinds of access in the portal:

| Access                       | What it allows                                                                                                                         |
| ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| **Any signed-in Tower user** | Browse environments, create and track promotions, open a promotion's timeline/history, open task details and notes, view the dashboard |
| **Approval access**          | Claim, approve, reject, or request changes on tasks at the step you're allowed to review; drill into a promotion's full task history   |
| **Original requester**       | Resubmit (with a new version) or cancel a request that was returned to you for changes                                                 |

<Note>
  **Four-eyes is enforced through claims**

  Acting on a task requires you to **claim** it first. The claim model - combined with how steps are assigned - keeps any one person from completing both submission and approval, so segregation of duties is preserved without per-action role checks in the UI.
</Note>

Each guide notes the access it needs under **Prerequisites**.