Release Management Best Practices - Glossary of Terms and Phrases
Release Management Best Practices
Chapter 2. Glossary of Terms and Phrases

| Term or Phrase | Abbreviation or Acronym | Definition |
|---|---|---|
| Asset | Something the enterprise owns, operates, or depends on that is important and worth governing. Assets are hierarchical/compositional. | |
| Average Release Time | ART | The average of Total Release Delivery Time across a set of Releases or a time period. Note: “ART” also refers to Agile Release Train — the two are distinct. |
| Change Advisory Board | CAB | Change Management’s own governance body that advises on production-impact assessment; not a Release Management concept. |
| Change Failure Rate | The percentage of Releases that fail at a Readiness Gate, require Rollback, or trigger an Issue/Incident once deployed; a stability metric. | |
| Change Management | The adjacent discipline that governs a Release’s impact on other Assets sharing the same targeted Environment, and functions as its own distinct Readiness Gate. | |
| Change Record | The Documentation record submitted to the Change Management Readiness Gate, capturing cross-Asset impact assessment. | |
| Change Set | The bundle of one or more changes to one or more governed Assets that a Release carries. | |
| Concern | An Issue Type: a stakeholder-raised observation or worry not yet a confirmed Bug/Defect or Incident, but warranting tracking. | |
| Continuous Release Environment | A highly-controlled, live Environment where changes are applied while End Users are actively working in it, typically forgoing Freeze Windows entirely. | |
| Deployment | A scripted (preferably automated) set of steps to Install, Configure, Build, Instantiate, and Execute an instance of an Asset into a specific Environment. | |
| Deployment Frequency | How often Deployments occur for a given Asset/Product/Service; a velocity metric. | |
| Deployment Management | The adjacent discipline responsible for creating and managing Deployments. | |
| Emergency/Hotfix Release | A Release Type: urgent, bypasses normal scheduling/Freeze Windows, but still passes through governance. | |
| Enhancement Request | An Issue Type: a request for new or improved capability, mapping to a future Feature Release. | |
| Enterprise Release Dashboard | A leadership-level rollup view of all Releases in flight across all Products/Services/Assets. | |
| Environment Management | The adjacent discipline that plans, designs, configures, builds, and secures Environments for reuse across many Releases. | |
| Feature Release | A Release Type: a set of new features to an existing Product/Service, often also including some defect corrections. | |
| Freeze Window | A defined period during which no Releases may deploy to a given Environment. Optional, scaled to Asset complexity/risk. | |
| Issue | A captured incident/disruption, bug/defect, question/inquiry, concern, enhancement request, or administrative problem, correlated to a Release/Asset/Environment. | |
| Major Release | A Release Type: a new major architectural or capability change. | |
| Patch | A Release Type: a set of defect corrections. | |
| Product Management | The adjacent discipline responsible for ownership/accountability of a Product as a whole; the Release Owner is most often the Product Owner. | |
| Project Management | The discipline of which Release Management is itself a specialized form. | |
| Release | A titled, versioned Change Set that is coordinated and moved across one or more IT Operating Environments toward its intended target Environment. | |
| Release Calendar | An artifact showing the intended Release Date and a Release Window, if necessary. Optional, scaled to complexity/risk. | |
| Release Documentation | The broad, foundational practice of documenting the Release process itself, including Asset-facing documentation. | |
| Release ID | The X.Y.Z label assigned to a Release. Interchangeable with Release Version. | |
| Release Iteration | A single governed attempt, with its own Change Set, to advance a target Release through the Readiness Gate sequence. | |
| Release Lifecycle | The full collective sequence of Release Iterations pursuing a single target Release, ending in a Version or Termination/Withdrawal. | |
| Release Management | The governance, management, and execution discipline responsible for defining, scoping, sequencing, coordinating, and controlling the movement of a Release across IT Operating Environments, with accountability divided between the Release Owner and the Release Manager. | |
| Release Manager | The role accountable for a Release’s process and orchestration. | |
| Release Notes | A short-form, per-Release communication of what’s new, changed, fixed, or still a known issue. | |
| Release Owner | The role accountable for a Release’s content and scope, most often the Asset Owner acting in that capacity. | |
| Release Project Plan | The Project Plan for a Release, covering scope, schedule, staffing, dependencies, and risk. | |
| Release Readiness Gate | Readiness Gate | The formal pass/fail decision point that authorizes a Release Iteration to advance into its next targeted Environment. |
| Release Roadmap | An artifact showing each Release’s own estimated start and delivery date, visualized as a horizontal chevron. | |
| Release Train | Agile’s specific named practice for a fixed-cadence, uniform-size, sequentially-chained Release pattern. | |
| Release Type | A recommended, customizable baseline classification of a Release’s predominant/defining intent. | |
| Risk Classification | A recommended, customizable set of tiers assigned to a Release based on multiple driving factors. | |
| Risk Register | An ongoing record of individually identified risks to a Release, tracked throughout the Release Lifecycle. | |
| Rollback | Reverting a Deployment back to the prior known-good state, typically the previous successfully-reached Release ID/Version. | |
| Remediation | Fixing forward via a new Release Iteration or Emergency/Hotfix Release, rather than reverting. | |
| Service Management | The adjacent discipline responsible for ownership/accountability of a Service as a whole. | |
| Systems Development Lifecycle | SDLC | The customizable, phase-based baseline reference model (Intake and Strategizing through Post-Mortem and Closing) that Release Management aligns Environment selection and movement against. |
| Total Release Delivery Time | The aggregate time across all Release Iterations in a Release’s full Lifecycle; a velocity metric. | |
| Version | The same identifier as a Release ID, carried by a Release once it successfully reaches its target Environment. |
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