📖Reference Guide

Product Management Glossary

100+ product management terms, frameworks, metrics, and methodologies defined clearly and concisely.

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A/B Testing

A controlled experiment in which two or more variants of a page, feature, or flow are shown to different user segments at the same time to...

AARRR (Pirate Metrics)

A framework developed by Dave McClure that breaks the customer lifecycle into five stages: Acquisition, Activation, Retention, Revenue, and...

AI Alignment

The research and engineering discipline focused on ensuring AI systems behave in accordance with human values, intentions, and goals rather...

AI Copilot UX

A design pattern where AI augments human work as a collaborative assistant rather than replacing the human, with the user maintaining...

AI Design Patterns

Reusable solutions to common UX challenges in AI-powered products, including patterns for confidence display, progressive disclosure,...

AI Evaluation (Evals)

Systematic testing of AI system outputs against quality benchmarks, safety criteria, and task-specific metrics to measure performance and...

AI Safety

The research and engineering practices focused on preventing harmful AI behaviors, ensuring reliable operation under adversarial...

AI UX Design

The practice of designing user experiences for AI-powered products, addressing unique challenges like probabilistic outputs, user trust...

API-First Design

A development approach where the API contract is designed and agreed upon before building the implementation, enabling parallel development...

ARR / MRR (Annual Recurring Revenue / Monthly Recurring Revenue)

ARR is the annualized value of all active subscription contracts, while MRR is the same figure on a monthly basis.

ATS Optimization

The practice of formatting and keyword-optimizing a resume so it passes through Applicant Tracking Systems. The software that filters...

Acceptance Criteria

A set of predefined conditions that a user story or feature must satisfy before it is considered complete and ready for release.

Accessibility (a11y)

Designing products usable by people with disabilities, following standards like WCAG and legal mandates like ADA.

Activation Rate

The percentage of new users who complete a key action that correlates with long-term retention, often called the \\"aha moment.

Affinity Diagram

A collaborative technique in which team members write observations, ideas, or data points on sticky notes (physical or digital) and then...

Agentic AI

AI systems that can autonomously plan, reason, and take sequential actions to achieve complex goals with minimal human intervention,...

Agentic UX

The design of user experiences for autonomous AI agents that plan and execute multi-step tasks, requiring new UX patterns for oversight,...

Agile

A family of iterative and incremental software development methodologies grounded in the Agile Manifesto (2001).

Agile Coach

A role focused on helping teams adopt and improve agile practices across process, mindset, and team dynamics.

Agile Estimation

Techniques for forecasting effort in agile teams, including story points, t-shirt sizes, and ideal days.

Annual Contract Value (ACV)

The annualized revenue value of a single customer contract, used to normalize deals of varying lengths for comparison.

Associate Product Manager (APM)

An entry-level product management role, typically for candidates with 0-2 years of experience, often structured as a rotational program at...

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CAC (Customer Acquisition Cost)

The total cost of sales and marketing efforts required to acquire a single new customer over a given period.

CI/CD (Continuous Integration / Continuous Delivery)

The practice of automatically building, testing, and preparing code changes for release, enabling faster and more reliable software...

Canary Release

Deploying a change to a small subset of users first, monitoring for issues, then gradually rolling it out to everyone.

Card Sorting

A user research method in which participants organize topic labels into categories that make sense to them, revealing their mental models.

Chain-of-Thought

A prompting technique that improves AI model reasoning by instructing it to break down complex problems into explicit, step-by-step...

Chief Product Officer (CPO)

The C-suite executive accountable for a company's entire product strategy, portfolio, and product management organization.

Churn Rate

The percentage of customers or subscribers who stop using a product during a given time period.

Cognitive Load

The mental effort required to use a product feature, measured across intrinsic, extraneous, and germane types.

Cohort Analysis

A method of grouping users by a shared characteristic. Most commonly sign-up date. And tracking their behavior over time.

Competitive Analysis

A structured evaluation of competitors' products, positioning, and strategies to inform your own product decisions.

Competitive Intelligence

The ongoing collection, analysis, and distribution of competitor data to support product and go-to-market decisions.

Competitive Moat

A sustainable competitive advantage that protects a company from rivals, analogous to the moat around a castle.

Context Window

The maximum amount of text, measured in tokens, that a large language model can process in a single interaction, including both the input...

Contextual Inquiry

A field-based research method in which the researcher observes and interviews users in their natural work or life environment while they...

Continuous Delivery

A software engineering practice in which code changes are automatically built, tested, and prepared for release to production at any time.

Conversational UX

A design paradigm where users interact with software through natural language dialogue rather than traditional graphical interfaces,...

Conversion Rate

The percentage of users who complete a desired action out of the total who had the opportunity.

Cost of Delay

The economic impact of not delivering a feature or product sooner, measured as lost revenue, market share, or strategic position per unit...

Cost-Benefit Analysis

A method for quantifying the costs and expected returns of a product initiative to inform investment decisions.

Customer Advisory Board (CAB)

A structured group of 8-15 strategic customers who provide ongoing product feedback and validate roadmap direction.

Customer Development

A methodology pioneered by Steve Blank in which founders and PMs systematically test business hypotheses by getting out of the building and...

Customer Effort Score (CES)

A metric measuring how easy it is for customers to accomplish tasks and resolve issues with your product.

Customer Journey Map

A visual representation of every touchpoint a customer has with a product or company, from initial awareness through purchase, onboarding,...

Customer Onboarding

The process of guiding new users from signup to their first meaningful value moment in your product.

Customer Segmentation

Dividing your customer base into distinct groups based on shared characteristics to make targeted product and marketing decisions.

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DAU / MAU (Daily Active Users / Monthly Active Users)

DAU is the count of unique users who engage with a product on a given day; MAU is the same over a 30-day window.

Data Flywheel

A self-reinforcing cycle where product usage generates data that improves the AI model, which improves the product experience, which drives...

Decision Matrix

A scored comparison table for evaluating options against weighted criteria to make structured decisions.

Definition of Done (DoD)

A shared agreement within a team that specifies all conditions a piece of work must meet before it can be considered complete. For example,...

Definition of Ready (DoR)

A checklist of conditions a user story must meet before a team commits to working on it in a sprint.

Demand Generation

The process of creating awareness and interest that drives qualified pipeline for a product.

Dependency

A relationship in which one piece of work, team, or system relies on another to proceed.

Design Debt

The accumulated UX inconsistencies and design shortcuts that degrade the user experience over time.

Design Sprint

A five-day structured process created at Google Ventures for rapidly solving big product problems through ideation, prototyping, and user...

Design System

A collection of reusable UI components, patterns, and guidelines that ensure consistent product design at scale.

Design System for AI

An extension of traditional design systems that includes components, patterns, and guidelines specifically for AI-powered features,...

Design Thinking

A human-centered problem-solving methodology popularized by IDEO and Stanford's d.

DevOps

A set of practices that unifies software development and IT operations to shorten delivery cycles and improve reliability.

Diary Study

A longitudinal research method in which participants record their experiences, behaviors, and thoughts over a period of days or weeks using...

Discovery (Product Discovery)

The ongoing practice of determining what to build by understanding customer problems, validating assumptions, and evaluating solutions...

Double Diamond

A design process model from the UK Design Council that visualizes work in four phases across two diamonds: Discover (diverge), Define...

Dual-Track Agile

An approach in which a product team runs two parallel tracks: a discovery track (exploring problems and validating solutions) and a...

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Fake Door Test

A discovery technique in which a button, link, or menu item for a feature that does not yet exist is presented to users.

Feature Adoption

The percentage of active users who have used a specific feature at least once (or on a recurring basis, depending on definition).

Feature Creep

The uncontrolled expansion of a product's feature set beyond its original scope, often driven by stakeholder requests, competitive...

Feature Factory

A pejorative term for a product team that churns out features based on stakeholder requests without validating whether those features solve...

Feature Flag

A software mechanism that allows teams to enable or disable a feature for specific user segments without deploying new code.

Few-Shot Learning

A technique where AI models learn to perform tasks from just a small number of examples provided in the prompt, without requiring...

Fine-Tuning

The process of further training a pre-trained AI model on a smaller, task-specific dataset to adapt its behavior and improve performance...

First-Mover Advantage

The competitive benefit gained by being the first company to enter a new market or create a new product category.

Flywheel Effect

A concept from Jim Collins describing a self-reinforcing cycle in which each component of a business model feeds and accelerates the next,...

Foundation Model

Large pre-trained AI models trained on broad datasets that can be adapted through fine-tuning or prompting for a wide variety of downstream...

Freemium

A pricing model in which a basic version of the product is offered for free while advanced features, higher usage tiers, or premium support...

Function Calling

A large language model capability that enables AI to invoke external tools, APIs, and services based on natural language input, bridging...

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Market Positioning

Where your product sits relative to competitors in customers' minds, defined by the value you deliver to a specific audience.

Market Research

Systematic gathering and analysis of data about a target market, including customer needs, competitors, and market dynamics.

Market Sizing (TAM / SAM / SOM)

Three nested lenses for estimating market opportunity.

Metric (Leading vs. Lagging)

Leading metrics predict future outcomes while lagging metrics measure past results. Product teams track both to understand performance and...

Microservices

An architecture pattern where an application is built as a collection of small, independently deployable services, each owning a specific...

Minimum Lovable Product (MLP)

The smallest version of a product that customers will love. Not just tolerate. Enough to recommend to others.

Minimum Viable Product (MVP)

The smallest version of a product that can be released to test a key business hypothesis with real users.

MoSCoW Prioritization

A prioritization technique that categorizes requirements into four buckets: Must Have (non-negotiable for launch), Should Have (important...

Model Distillation

A technique for creating smaller, faster, and cheaper AI models by training them to replicate the behavior of larger, more capable models...

Model Drift

The gradual degradation of an AI model performance over time as real-world data patterns, user behavior, and business conditions change...

Multi-Agent Systems

Architectures where multiple specialized AI agents collaborate, delegate, and coordinate to solve complex tasks that exceed the capability...

Multimodal AI

AI systems that can process, understand, and generate multiple types of data including text, images, audio, video, and code within a...

Multimodal UX

The design of user experiences that seamlessly combine multiple input and output modalities. Text, voice, image, gesture, and video....

Multivariate Testing

An experimentation method that tests multiple variables simultaneously to find the best-performing combination.

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PM Career Ladder

A structured progression framework that defines product management levels from APM through CPO, including the skills, scope, and impact...

PM Portfolio

A curated collection of case studies, product teardowns, and side projects that demonstrates product management thinking and skills to...

PRD (Product Requirements Document)

A document that articulates the purpose, features, behavior, and constraints of a product or feature for the development team.

Partner Ecosystem

The network of integrations, resellers, and complementary products built around your platform.

Persona

A research-based archetype representing a segment of the target user population.

Phased Rollout

Gradually releasing a feature to increasing user segments, monitoring health metrics at each stage before expanding further.

Planning Poker

An estimation technique where team members simultaneously reveal point estimates to avoid anchoring bias.

Platform Strategy

A business model in which the company creates value by facilitating interactions between two or more distinct user groups (e.

Porter's Five Forces

Michael Porter's framework for analyzing five competitive forces that shape industry profitability and strategy.

Positioning

The deliberate process of defining how a product should be perceived in the minds of the target audience relative to competitors.

Predictive Analytics

Using historical data and statistical models to forecast future user behavior and product outcomes.

Pricing Strategy

The approach a product team uses to set, structure, and evolve pricing to capture value and drive growth.

Prioritization

The process of deciding what to build next from a pool of competing opportunities, balancing factors like user impact, business value,...

Problem Statement

A concise articulation of the user problem a team is trying to solve, typically framed from the user's perspective.

Product Designer

A designer who owns the end-to-end user experience for a product area, from research through interaction design to visual polish.

Product Development

The end-to-end process of conceiving, designing, building, and launching a product. From idea to users' hands.

Product Development Lifecycle (PDLC)

The stages a product goes through from initial idea to shipped feature: ideation, definition, design, build, test, launch.

Product Differentiation

What makes your product meaningfully different from alternatives in a way that matters to your target customers.

Product Lifecycle

The four stages a product passes through from launch to discontinuation: introduction, growth, maturity, and decline.

Product Management

The discipline of guiding a product from conception to market success by balancing user needs, business goals, and technical constraints.

Product Ops (Product Operations)

A function that supports product teams by streamlining tools, processes, data access, and communication so PMs can focus on discovery and...

Product Owner

The Scrum role responsible for maximizing product value by managing and prioritizing the product backlog.

Product Portfolio

The collection of products a company manages as a unified set of investments with distinct strategic roles.

Product Sense

The ability to identify problems worth solving, evaluate solutions users will adopt, and make sound product decisions without complete data.

Product Strategy

The plan that connects a company's vision and business objectives to the specific product decisions the team makes.

Product Trio

A cross-functional leadership model in which the product manager, the tech lead (or engineering manager), and the product designer...

Product Vision

A concise statement describing the future state your product aims to create for its users and the market.

Product-Led Growth (PLG)

A go-to-market strategy in which the product itself is the primary driver of acquisition, conversion, expansion, and retention.

Product-Led Sales (PLS)

A GTM motion where free product usage generates qualified leads for a sales team to close.

Product-Market Fit

The state in which a product satisfies a strong market demand, evidenced by organic growth, high retention, and enthusiastic word-of-mouth.

Progressive Disclosure

A design pattern that reduces cognitive load by showing only essential information first, then revealing additional complexity as users...

Prompt Engineering

The practice of designing and refining inputs to AI models to elicit more accurate, relevant, and useful outputs for specific tasks and use...

Prototype

A preliminary model of a product or feature used to explore ideas and test assumptions before building production code.

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RACI Matrix

A framework that clarifies decision roles by assigning Responsible, Accountable, Consulted, and Informed status to each stakeholder.

RICE Framework

A prioritization framework [developed at Intercom](https://www.intercom.com/blog/rice-simple-prioritization-for-product-managers/) that...

Red-Teaming

An adversarial testing methodology where testers deliberately attempt to find vulnerabilities, failure modes, and harmful outputs in AI...

Refactoring

Restructuring existing code to improve its internal quality without changing its external behavior, reducing future development costs.

Regression Testing

Testing existing functionality after code changes to verify that previously working features have not been broken.

Reinforcement Learning from Human Feedback (RLHF)

A training method where human evaluators rate AI model outputs, and those preference signals are used to fine-tune the model to produce...

Release Management

The process of planning, scheduling, coordinating, and controlling software releases across environments and teams.

Release Planning

The process of mapping features to target releases across multiple sprints, balancing scope, quality, and timing.

Release Train

A fixed-cadence delivery model where multiple teams align on a shared schedule to release increments of a product together at regular...

Responsible AI

Frameworks and practices ensuring AI systems are developed and deployed ethically, fairly, transparently, and with accountability for their...

Retention Rate

The percentage of users or customers who continue to use a product over a defined period.

Retrieval-Augmented Generation (RAG)

An AI architecture pattern that combines large language models with external knowledge retrieval to generate responses grounded in...

Retrospective (Retro)

A team meeting held at the end of a sprint or project in which participants reflect on what went well, what did not, and what should be...

Revenue Model

The strategy a product uses to generate income, defining what customers pay for and how they pay.

Revenue Per User (ARPU)

Average Revenue Per User is calculated by dividing total revenue by the number of active users or accounts over a given period.

Roadmap

A strategic communication artifact that conveys the planned direction and priorities for a product over time.

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SAFe (Scaled Agile Framework)

A framework for scaling Agile practices across large enterprises with many teams.

STAR Method

A structured response format. Situation, Task, Action, Result. Used for behavioral interview answers and resume bullet points in product...

SWOT Analysis

A strategic planning framework that evaluates Strengths, Weaknesses, Opportunities, and Threats for a product or business.

Sales Enablement

How product teams arm sales with the content, tools, and training needed to sell effectively against competitors.

Scenario Planning

A strategic technique that develops multiple plausible future scenarios to stress-test product decisions and strategy.

Scope Creep

The gradual, unplanned expansion of a project's scope after work has begun, typically through incremental additions that each seem small...

Scrum

An Agile framework that structures work into fixed-length iterations called sprints (typically two weeks).

Segmentation Analysis

Analyzing product metrics across different user segments to uncover behavioral differences that drive strategy.

Service Level Agreement (SLA)

A contractual commitment between a service provider and customer specifying uptime, performance, and support response guarantees.

Shape Up

A product development methodology created at Basecamp that organizes work into six-week cycles followed by a two-week cooldown.

Spike

A time-boxed research or investigation task in Agile development, used to answer a question or resolve uncertainty before committing to a...

Sprint

A fixed-length iteration, usually one to four weeks, during which a Scrum team commits to completing a set of backlog items and delivering...

Sprint Planning

A Scrum event held at the start of each sprint in which the team selects items from the product backlog, discusses how they will be...

Sprint Review

The ceremony at the end of a sprint where the team demonstrates completed work to stakeholders and collects feedback.

Stakeholder Management

The practice of identifying, communicating with, and influencing the people and groups who have an interest in or authority over a...

Stand-up (Daily Scrum)

A brief daily meeting. Typically 15 minutes or less. In which each team member shares what they did yesterday, what they plan to do today,...

Story Mapping

A technique developed by [Jeff Patton](https://www.jpattonassociates.com/) in which user stories are arranged in a two-dimensional map....

Story Points

A unit of measure for estimating the relative effort, complexity, and uncertainty of a user story.

Survey

A quantitative research method that collects structured responses from a large number of users through a set of questions, often delivered...

Switching Cost

The effort, expense, or inconvenience a customer incurs when changing from one product to a competitor.

Synthetic Data

Artificially generated data that mimics real-world data patterns, used to train, test, and validate AI models when authentic data is...

Synthetic Users

AI-generated simulations of user personas that can be interviewed, surveyed, or tested against to supplement real user research, with...

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