COPR ACP study materials
COPR ACP study resources

COPR ACP key terms

COPR ACP · Get comfortable with the vocabulary.

Agile Manifesto

A short 2001 statement of four values and twelve principles that favor individuals, working software, customer collaboration, and responsiveness to change over rigid plans and heavy documentation.

Related: Iterative and Incremental Delivery, Servant Leadership
Iterative and Incremental Delivery

Building a product in short repeated cycles, where each cycle adds a usable slice of functionality and allows earlier assumptions to be corrected before more work is committed.

Related: Agile Manifesto, Timebox, Definition of Done
Lean Thinking

A management approach that maximizes customer value by identifying which activities create value, removing waste, limiting work in progress, and improving flow continuously.

Related: Value Stream Mapping, Work in Progress Limit, Kaizen
Value Stream Mapping

A visual exercise that traces the steps a request passes through, marking where time is spent waiting versus working, so teams can target the largest sources of delay.

Related: Lean Thinking, Cycle Time, Little's Law
Work in Progress Limit

A cap on how many items may be in a given stage at once, used to expose bottlenecks, shorten queues, and encourage the team to finish work before starting more.

Related: Lean Thinking, Little's Law, Cumulative Flow Diagram
Kaizen

A habit of small, continuous, team-driven improvements to process and working conditions, applied regularly rather than through occasional large restructuring efforts.

Related: Retrospective, Lean Thinking, Impediment
Timebox

A fixed, non-extendable period allocated to an activity such as a meeting or iteration, which encourages focus and forces trade-off decisions when scope would otherwise expand.

Related: Iterative and Incremental Delivery, Sprint Cadence
Sprint Cadence

The steady rhythm of planning, review, and retrospective events across iterations, giving stakeholders predictable points to inspect progress and adjust direction.

Related: Timebox, Release Planning
Value-Driven Delivery

Prioritizing and sequencing work by the benefit it delivers to customers and the organization, so the highest-value items are completed and validated as early as possible.

Related: Minimum Marketable Feature, Prioritization, Return on Investment
Minimum Marketable Feature

The smallest set of functionality that delivers meaningful, usable value to a customer segment, allowing early release and learning without building the whole vision.

Related: Minimum Viable Product, Prioritization, Definition of Done
Minimum Viable Product

A version of a product with just enough capability to test key assumptions with real users, built to gather evidence rather than to satisfy every anticipated requirement.

Related: Minimum Marketable Feature, Spike, Value-Driven Delivery
Prioritization

The act of ordering backlog items by value, risk, cost, and dependency so the team always works on the most worthwhile item available within current constraints.

Related: Value-Driven Delivery, Weighted Shortest Job First, Backlog Refinement
Weighted Shortest Job First

A ranking method that divides the value of an item by its duration and other cost factors, favoring short high-value items so economic benefit arrives sooner.

Related: Prioritization, Return on Investment, Little's Law
Return on Investment

The expected benefit of a piece of work compared with its cost, used to justify funding decisions and to compare competing candidate features or projects.

Related: Value-Driven Delivery, Weighted Shortest Job First
Stakeholder Analysis

Identifying everyone affected by or interested in the product, then recording their influence, interest, and concerns so engagement effort can be targeted appropriately.

Related: Stakeholder Engagement Plan, Persona, Communication Plan
Stakeholder Engagement Plan

A lightweight plan describing which stakeholders need what information, in which format, at which intervals, and who is responsible for each interaction.

Related: Stakeholder Analysis, Communication Plan
Communication Plan

An agreed schedule and set of channels for sharing progress, decisions, and risks with specific audiences, adjusted as the project and its stakeholders change.

Related: Stakeholder Engagement Plan, Information Radiator
Information Radiator

A highly visible, easy-to-read display of current status such as a task board or burn chart, placed where the team and passers-by see it without asking anyone.

Related: Task Board, Burndown Chart, Communication Plan
Persona

A representative description of a typical user type, including goals and frustrations, used to keep design and prioritization decisions focused on real customer needs.

Related: Stakeholder Analysis, User Story
Servant Leadership

A leadership stance in which the leader's main job is removing obstacles, providing resources, and developing people so the team can make decisions and deliver.

Related: Impediment, Self-Organizing Team, Coaching
Self-Organizing Team

A group that decides how to divide and sequence its own work, within agreed boundaries, rather than waiting for a manager to assign tasks and methods.

Related: Servant Leadership, Cross-Functional Team, Team Charter
Cross-Functional Team

A team whose members collectively hold the skills needed to take an item from idea to delivered result, reducing handoffs and external dependencies.

Related: Self-Organizing Team, T-Shaped Skills
T-Shaped Skills

A profile where a person has deep expertise in one area and working competence across several related areas, enabling flexible reallocation of work within the team.

Related: Cross-Functional Team, Pairing
Team Charter

A short document the team writes for itself covering purpose, values, working agreements, decision rules, and escalation paths, used to resolve friction later.

Related: Working Agreements, Self-Organizing Team
Working Agreements

Explicit norms the team chooses about how members will behave and collaborate, such as review turnaround or meeting conduct, which can be revisited when they stop helping.

Related: Team Charter, Retrospective
Coaching

Helping individuals and the team improve through questioning, feedback, and practice rather than by giving instructions or solving their problems for them.

Related: Servant Leadership, Conflict Resolution
Adaptive Planning

Planning at multiple horizons with just enough detail for the near term, revising forecasts as new information arrives instead of defending an outdated baseline.

Related: Rolling Wave Planning, Release Planning, Velocity
Rolling Wave Planning

Detailing near-term work precisely while leaving later work at a coarse level, refining it progressively as the horizon approaches and uncertainty falls.

Related: Adaptive Planning, Backlog Refinement
Release Planning

A forward look that maps prioritized features to one or more upcoming releases, balancing value, capacity, dependencies, and market timing.

Related: Adaptive Planning, Sprint Cadence, Velocity
Velocity

The average amount of estimated work a team completes per iteration, used as a short-term forecasting input rather than as a performance target or comparison across teams.

Related: Release Planning, Burndown Chart, Story Point
Story Point

A relative unit of size used to estimate backlog items, capturing effort, complexity, and uncertainty without pretending to be a precise measure of elapsed time.

Related: Velocity, Planning Poker
Planning Poker

A group estimation technique where members privately choose a size card, reveal simultaneously, and discuss outliers until the team converges on a shared estimate.

Related: Story Point, Backlog Refinement
Backlog Refinement

The ongoing activity of clarifying, splitting, re-estimating, and reordering upcoming backlog items so they are ready when the team has capacity to start them.

Related: Rolling Wave Planning, Definition of Ready, Prioritization
Problem Detection and Resolution

The practice of making work, risk, and defects visible early through charts, reviews, and tests, then resolving root causes rather than repeatedly patching symptoms.

Related: Impediment, Cumulative Flow Diagram, Root Cause Analysis
Impediment

Any obstacle blocking the team's progress, such as a missing decision, environment, or person, which is logged, owned, and driven to removal quickly.

Related: Servant Leadership, Problem Detection and Resolution, Escalation
Escalation

Raising an issue to a level with authority or resources to resolve it, following an agreed path and time threshold rather than waiting indefinitely.

Related: Impediment, Team Charter
Cumulative Flow Diagram

A stacked chart of item counts per stage over time, whose widening bands reveal growing queues and bottlenecks before they show up as missed dates.

Related: Work in Progress Limit, Little's Law, Problem Detection and Resolution
Little's Law

A relationship stating that average items in a system equal arrival rate multiplied by average time in the system, used to predict how limiting work in progress shortens lead time.

Related: Work in Progress Limit, Cycle Time, Cumulative Flow Diagram
Cycle Time

The elapsed time from when work starts on an item to when it is finished, a key flow measure for forecasting and for judging process improvements.

Related: Little's Law, Value Stream Mapping
Root Cause Analysis

A structured investigation, such as repeated asking why or a fishbone diagram, that identifies the underlying reason a defect or delay occurred so it can be prevented.

Related: Problem Detection and Resolution, Retrospective
Continuous Improvement and Product Quality

The combined discipline of raising delivered quality through built-in technical practices while steadily improving how the team works, using evidence rather than opinion.

Related: Definition of Done, Technical Debt, Retrospective
Definition of Done

A shared checklist describing what must be true for an item to count as complete, including quality criteria, so that finished work needs no later rework.

Related: Acceptance Criteria, Technical Debt, Iterative and Incremental Delivery
Acceptance Criteria

Conditions written for a specific backlog item that must be satisfied for the customer or product owner to accept it as meeting the intended need.

Related: Definition of Done, User Story
Definition of Ready

An agreed checklist indicating an item is clear, estimated, testable, and free of blocking dependencies, so the team can start it without further negotiation.

Related: Backlog Refinement, Definition of Done
Technical Debt

The future cost of shortcuts in design or code that make later change slower, tracked and repaid deliberately rather than allowed to accumulate silently.

Related: Definition of Done, Refactoring, Continuous Improvement and Product Quality
Refactoring

Improving the internal structure of existing code without changing its external behavior, keeping the design easy to modify as understanding grows.

Related: Technical Debt, Pairing
Test-Driven Development

A cycle of writing a failing automated test first, then the simplest code to pass it, then refactoring, which yields a safety net and drives design decisions.

Related: Refactoring, Continuous Integration, Definition of Done
Continuous Integration

Merging each change into a shared mainline frequently and running automated builds and tests, so integration problems surface within minutes rather than weeks.

Related: Test-Driven Development, Definition of Done
Pairing

Two people working together at one workstation, one writing and one reviewing, swapping roles often to spread knowledge and catch defects while they are cheap.

Related: Refactoring, T-Shaped Skills
Retrospective

A regular team meeting to inspect how work was done, identify causes of friction, and commit to a small number of concrete improvements to try next iteration.

Related: Kaizen, Root Cause Analysis, Working Agreements
Risk-Adjusted Backlog

An ordering of work that places high-value, high-uncertainty items early so that risky assumptions are tested while there is still time to change course.

Related: Spike, Risk Register, Prioritization
Spike

A short, timeboxed investigation built to answer a specific technical or product question and reduce uncertainty before committing to delivery work.

Related: Risk-Adjusted Backlog, Minimum Viable Product, Timebox
Risk Register

A living list of identified risks with likelihood, impact, owner, and planned response, reviewed regularly so responses are acted on rather than filed away.

Related: Risk-Adjusted Backlog, Compliance Requirement
Compliance Requirement

An external rule, standard, or contractual obligation the product must satisfy, which should be expressed as testable acceptance criteria and verified within each iteration.

Related: Risk Register, Definition of Done, Acceptance Criteria
User Story

A short statement of a need written from a user's perspective, with a goal and a reason, intended to prompt conversation rather than to serve as a full specification.

Related: Acceptance Criteria, Persona, Backlog Refinement
Task Board

A visible grid of columns representing workflow stages, with cards moving across as work progresses, making status and bottlenecks obvious at a glance.

Related: Information Radiator, Cumulative Flow Diagram, Work in Progress Limit
Burndown Chart

A line chart showing remaining estimated work against time within an iteration, used to spot a flat trend early and discuss causes rather than to pressure the team.

Related: Velocity, Information Radiator
Conflict Resolution

Addressing disagreement directly and early by focusing on interests and evidence, choosing an approach suited to the stakes, and preserving the relationship.

Related: Coaching, Working Agreements