Product Management Glossary
100+ product management terms, frameworks, metrics, and methodologies defined clearly and concisely.
A
A/B Testing
A controlled experiment in which two or more variants of a page, feature, or flow are shown to different user segments simultaneously to...
AARRR (Pirate Metrics)
A framework developed by Dave McClure that breaks the customer lifecycle into five stages: Acquisition, Activation, Retention, Revenue, and...
AI Agent
An AI agent is an autonomous system that uses a language model to plan, reason, and execute multi-step tasks by calling tools and making...
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 Product-Market Fit
The state where an AI product solves a meaningful problem with measurable quality improvements and sustainable unit economics. Differs from...
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 Gateway
A server that acts as a single entry point for all client requests, routing them to the appropriate backend services while handling...
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 (WCAG)
The Web Content Accessibility Guidelines, an international standard defining how to make digital products usable by people with visual,...
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), emphasizing working...
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...
Average Revenue Per Account (ARPA)
A B2B SaaS metric that measures the average revenue generated per customer account over a given period, reflecting account-level...
Average Revenue Per User (ARPU)
A SaaS metric that measures the average revenue generated per active user over a given period, typically monthly or annually, used to track...
Average Selling Price (ASP)
The average revenue generated per deal or unit sold, calculated by dividing total revenue by the number of deals closed in a given period,...
B
Backlog
An ordered list of all work items. User stories, bugs, technical debt, spikes, and improvements. That a product team may deliver.
Backlog Refinement
An ongoing Scrum activity where the team reviews, clarifies, estimates, and prioritizes upcoming backlog items to ensure they are ready for...
Beta Testing
A pre-release testing phase in which a product or feature is made available to a limited group of external users under real-world...
Blameless Postmortem
A structured review process conducted after an incident or failure that focuses on understanding systemic causes and improving processes...
Blue Ocean Strategy
A strategic framework for creating uncontested market space by making competition irrelevant, rather than competing in existing markets.
Blue-Green Deployment
A release strategy that maintains two identical production environments, switching all traffic from one to the other to enable instant...
Bottoms-Up Adoption
A go-to-market strategy where individual users or small teams adopt a product first and organically spread usage within their organization,...
Build vs Buy
A decision framework for determining whether to build a capability in-house or purchase a vendor solution.
Burn Multiple
Burn Multiple measures capital efficiency by dividing net cash burned by net new ARR added, showing how much cash it costs to generate each...
Burn Rate
The rate at which a company spends its cash reserves, typically expressed as a monthly figure.
Burndown Chart
A visual graph that plots the amount of remaining work (often in story points or tasks) against time within a sprint or release.
Burnup Chart
A visual chart that tracks the total amount of work completed over time against the total scope, making scope changes visible alongside...
Business Case
A structured argument for investing in a product initiative, covering financial projections, strategic rationale, and risk assessment.
Business Model Canvas
A one-page strategic tool developed by Alexander Osterwalder that maps nine building blocks of a business: Key Partners, Key Activities,...
Buyer Persona
A semi-fictional profile of the person who makes or influences the purchasing decision, distinct from the end user.
C
CAC (Customer Acquisition Cost)
The total cost of sales and marketing efforts required to acquire a single new customer, calculated by dividing total acquisition spend by...
CAC Payback Period
CAC Payback Period measures the number of months it takes to recover the cost of acquiring a customer through their gross margin...
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...
Chaos Engineering
A discipline of deliberately injecting failures into production systems to test resilience, identify weaknesses, and build confidence that...
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, serving as the inverse of retention and a...
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.
Committed Monthly Recurring Revenue (CMRR)
CMRR represents the forward-looking value of all active contracts plus signed deals not yet live, minus known upcoming churn and...
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 Engineering
The practice of structuring information, instructions, and examples in AI prompts to maximize model performance. Goes beyond prompt writing...
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.
Continuous Discovery
A product management practice where teams conduct ongoing research activities every week to inform product decisions, rather than doing...
Contraction Revenue
Contraction revenue is the reduction in recurring revenue from existing customers who downgrade their plan, reduce seats, or decrease usage.
Contribution Margin
Contribution margin measures the revenue remaining after subtracting variable costs directly tied to serving a customer, expressed as a...
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.
Cumulative Flow Diagram
A stacked area chart that visualizes the quantity of work items in each stage of a workflow over time, revealing bottlenecks, WIP problems,...
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.
D
DACI Framework
A decision-making framework that assigns four roles to every decision: Driver, Approver, Contributors, and Informed, clarifying who does...
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.
DAU/MAU Ratio
A product engagement metric that divides daily active users by monthly active users, expressing what percentage of your monthly user base...
Daily Standup
A brief, timeboxed daily meeting where team members synchronize work, surface blockers, and plan the next 24 hours. Also called the Daily...
Dark Patterns
User interface design choices that deliberately trick or manipulate users into actions they did not intend, such as hidden subscriptions,...
Data Flywheel
A self-reinforcing cycle where product usage generates data that improves the AI model, which improves the product experience, which drives...
Data Moat
A competitive advantage created when proprietary data improves a product's performance in ways competitors cannot replicate without similar...
Database Sharding
A horizontal scaling technique that partitions a database across multiple servers, with each shard holding a subset of the total data.
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...
E
Edge Inference
Running AI models directly on user devices like phones, laptops, and IoT hardware rather than sending data to cloud servers, enabling...
Embeddings
Dense vector representations of text, images, or other data that capture semantic meaning, enabling AI systems to measure similarity and...
Empowered Teams
A concept championed by Marty Cagan describing product teams that are given problems to solve rather than features to build.
Engagement Rate
The proportion of users who interact meaningfully with a product, feature, or content over a given period.
Epic
A large body of work that can be broken down into multiple user stories or tasks.
Expansion Revenue
Revenue growth from existing customers through upsells, cross-sells, and add-ons.
Explainability (XAI)
The degree to which an AI system's decisions and outputs can be understood by humans, and the techniques used to make opaque models...
F
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), measured to assess whether shipped...
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...
Fibonacci Estimation
An agile estimation technique that uses the Fibonacci sequence (1, 2, 3, 5, 8, 13, 21) to size work items, reflecting the inherent...
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...
G
Go-to-Market Strategy (GTM)
The plan for how a company will launch a product or feature to the target market, encompassing positioning, pricing, distribution channels,...
Go/No-Go Decision
A formal checkpoint where a cross-functional team decides whether to proceed with a launch, release, or initiative.
GraphQL
A query language for APIs that lets clients request exactly the data they need from a single endpoint, reducing over-fetching and...
Grooming (Backlog Refinement)
A recurring team activity in which backlog items are reviewed, re-prioritized, broken down, and enriched with detail so they are ready for...
Gross Dollar Retention (GDR)
Gross Dollar Retention measures the percentage of recurring revenue retained from existing customers excluding any expansion revenue,...
Gross Margin
Revenue minus cost of goods sold, expressed as a percentage. The fundamental measure of product profitability.
Grounding
Connecting AI model outputs to verified factual sources, databases, or real-time information to reduce hallucination and ensure responses...
Group Product Manager (GPM)
A senior PM who manages a team of product managers while still owning a product area, combining IC ownership with people leadership.
Growth Hacking
Rapid experimentation across marketing and product to discover scalable, repeatable growth levers.
Growth Product Manager
A PM specializing in acquisition, activation, retention, and monetization rather than core product features.
Guardrails
Safety mechanisms and constraints built into AI systems to prevent harmful, inappropriate, or off-topic outputs and ensure model behavior...
H
HEART Framework
A user-experience metrics framework from Google that measures five dimensions: Happiness, Engagement, Adoption, Retention, and Task success.
Hallucination
When an AI model generates false, fabricated, or unsupported information that appears plausible but is not grounded in its training data or...
Head of Product
The senior leader responsible for the product management function, typically at startups and scaleups with 50-500 employees.
Heuristic Evaluation
A usability inspection method where evaluators examine an interface against established design principles to identify usability problems...
Human-AI Interaction
The study and design of how humans and AI systems collaborate, communicate, and share control, encompassing interaction patterns, trust...
Human-in-the-Loop
A system design pattern where humans review, approve, or correct AI-generated outputs at critical decision points, balancing automation...
Hypothesis-Driven Development
An approach in which product teams frame every initiative as a testable hypothesis: "We believe that [action] will result in [outcome] as...
I
ICE Scoring
A lightweight prioritization method that scores ideas on three dimensions: Impact (how much will it move a key metric), Confidence (how...
Ideal Customer Profile (ICP)
A firmographic description of the type of company most likely to get value from your product and become a long-term customer.
Impact Mapping
A strategic planning technique created by Gojko Adzic that connects business goals to deliverables through a four-level map: Goal (why),...
Increment
A concrete, usable piece of product functionality delivered at the end of a sprint that meets the Definition of Done and adds value to the...
Inference
Inference is the process of running a trained AI model to generate predictions or outputs from new inputs, as opposed to training the model.
Information Architecture (IA)
The structural design of information spaces. How content and features are organized, labeled, and connected in a product.
Initiative
A large body of work that advances a strategic theme, typically spanning multiple sprints and composed of several epics, with a defined...
Initiative Roadmap
A roadmap format that organizes planned work around strategic initiatives or themes rather than specific features or dates.
Intelligence Moat
A competitive advantage from embedding AI into domain-specific workflows, regulations, or contexts that general models cannot replicate....
J
K
L
LTV (Customer Lifetime Value)
The total net revenue a company can expect from a single customer account over the entire duration of the relationship.
Land and Expand
A go-to-market strategy where a company wins a small initial deal within an organization and then grows revenue by expanding usage, seats,...
Landing Page Test
A discovery technique in which a purpose-built web page describes a proposed product or feature, measures interest through sign-ups or...
Large Language Model (LLM)
A type of AI model trained on massive text datasets that can understand and generate human language, powering applications like chatbots,...
Lean Canvas
A one-page business model template adapted from Business Model Canvas, designed for startups and new product initiatives.
Lean Product Development
Applying lean manufacturing principles. Reduce waste, optimize flow, validated learning. To building software products.
Lean Startup
A methodology by Eric Ries centered on the Build-Measure-Learn feedback loop.
Logo Retention
Logo retention measures the percentage of customers (logos) retained over a period, regardless of how much each customer spends.
M
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.
Marketplace
A platform that connects buyers and sellers to facilitate transactions, earning revenue through transaction fees, commissions, or listing...
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, maximizing validated learning...
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
When an AI model's performance degrades over time because production data differs from training data. User behavior changes, product...
Monolith
A software architecture where the entire application is built and deployed as a single, unified codebase and process.
Multi-Agent Systems
Architectures where multiple specialized AI agents collaborate, delegate, and coordinate to solve complex tasks that exceed the capability...
Multi-Modal AI
Multi-modal AI refers to models that can process and generate multiple data types such as text, images, audio, and video within a single...
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.
N
NPS (Net Promoter Score)
A customer loyalty metric calculated by asking users how likely they are to recommend a product on a 0-10 scale, then subtracting the...
Net Dollar Retention (NDR)
Net Dollar Retention measures the percentage of recurring revenue retained from existing customers over a period, including expansion,...
Net Negative Churn
A growth metric where expansion revenue from existing customers (upsells, cross-sells, plan upgrades) exceeds the revenue lost from churned...
Net Revenue Retention (NRR)
The percentage of recurring revenue retained from existing customers over a period, including expansion, contraction, and churn.
Network Effects
A phenomenon in which a product becomes more valuable as more people use it.
North Star Framework
A strategic framework in which a team identifies a single North Star Metric that captures the core value delivered to customers, supported...
O
OKR (Objectives and Key Results)
A goal-setting framework that aligns teams around ambitious objectives paired with measurable key results, popularized by Intel and scaled...
Observability
The ability to understand a system's internal state from its external outputs, using logs, metrics, and traces to diagnose issues without...
Opportunity Solution Tree
A visual framework created by [Teresa Torres](https://www.producttalk.org/) that maps a desired outcome at the top, branches into...
P
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 Business Model
A business model where a company creates value by facilitating interactions between two or more user groups, capturing a share of the value...
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, statistical algorithms, and machine learning to forecast future user behavior and product outcomes like churn risk,...
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, each demanding...
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, defining who you build...
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.
Q
Qualitative Research
Research methods that explore the "why" and "how" behind user behavior through open-ended techniques such as interviews, contextual...
Quantitative Research
Research methods that measure user behavior and attitudes at scale through structured data collection such as analytics, surveys with...
R
RACI Matrix
A framework that clarifies decision roles by assigning Responsible, Accountable, Consulted, and Informed status to each stakeholder.
RAPID Framework
A decision-making framework developed by Bain & Company that assigns five roles: Recommend, Agree, Perform, Input, and Decide, designed to...
REST API
An architectural style for web services that uses standard HTTP methods and resource-based URLs to enable communication between systems.
RICE Framework
A prioritization framework [developed at Intercom](https://www.intercom.com/blog/rice-simple-prioritization-for-product-managers/) that...
RLHF (Reinforcement Learning from Human Feedback)
RLHF is a training technique that aligns AI model behavior with human preferences by using human evaluators to rank outputs and training a...
Rate Limiting
A technique that controls how many requests a client can make to an API or service within a given time window, protecting against abuse and...
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, widely considered the single most important...
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.
Reverse Trial
A pricing strategy where new users start on the full-featured paid plan for free, then downgrade to a limited free plan when the trial...
Roadmap
A strategic communication artifact that conveys the planned direction and priorities for a product over time, aligning teams around what to...
Rule of 40
The Rule of 40 states that a healthy SaaS company's combined revenue growth rate and profit margin should equal or exceed 40%.
S
SAFe (Scaled Agile Framework)
A framework for scaling Agile practices across large enterprises with many teams.
SLA, SLO, and SLI
A hierarchy of reliability concepts: SLIs measure service behavior, SLOs set internal targets, and SLAs define contractual commitments to...
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.
SaaS Magic Number
The SaaS Magic Number measures sales efficiency by comparing new revenue generated to the sales and marketing spend that produced it.
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).
Scrum Master
A servant-leader responsible for coaching the Scrum team on Scrum practices, removing impediments, and fostering an environment where the...
Segmentation Analysis
Analyzing product metrics across different user segments to uncover behavioral differences that drive strategy.
Semantic Search
Semantic search retrieves results based on the meaning and intent behind a query rather than exact keyword matches, typically using vector...
Serverless
A cloud computing model where the cloud provider manages server infrastructure and automatically scales compute resources, charging only...
Service Level Agreement (SLA)
A contractual commitment between a service provider and customer specifying uptime, performance, and support response guarantees.
Serviceable Addressable Market (SAM)
The portion of the total addressable market that a company can realistically reach with its current product, pricing, distribution...
Serviceable Obtainable Market (SOM)
The realistic share of the serviceable addressable market that a company can capture in the near term, typically one to three years, given...
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 Goal
A short, focused objective that gives the development team a shared purpose for the sprint, guiding decisions about which work to...
Sprint Planning
A Scrum ceremony held at the start of each sprint in which the product manager presents priorities, the team selects backlog items,...
Sprint Retrospective
A recurring Scrum ceremony held at the end of each sprint where the team reflects on their process, identifies improvements, and commits to...
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...
T
T-Shirt Sizing
A quick, relative estimation technique where teams categorize work items as XS, S, M, L, or XL based on effort and complexity, without...
Technical Debt
The accumulated cost of shortcuts, expedient decisions, and deferred maintenance in a codebase.
Technical Product Manager
A PM with deep engineering fluency who owns platform, infrastructure, or developer-facing products.
Temperature
A parameter that controls the randomness and creativity of AI model outputs, where lower values produce more deterministic responses and...
Test-Driven Development (TDD)
A development practice where engineers write automated tests before writing the code that makes those tests pass.
Theme
A high-level strategic grouping of related features, initiatives, or epics that share a common business objective, used to organize a...
Tiger Team
A small, cross-functional group of experts assembled temporarily to solve a specific, urgent problem that falls outside normal team...
Time to Value (TTV)
The elapsed time between a user's first interaction with a product and the moment they experience its core value.
Timeboxing
Allocating a fixed, non-negotiable time period to an activity. When the time is up, you stop and evaluate.
Token
A token is the basic unit of text that language models process, typically representing a word, part of a word, or punctuation mark.
Tool Use
Tool use is the capability of an AI model to call external functions, APIs, or services to perform actions and retrieve information beyond...
Total Addressable Market (TAM)
The total revenue opportunity available if a product achieved 100% market share in its target market, representing the theoretical maximum...
Total Contract Value (TCV)
The total revenue value of a customer contract including all recurring fees, one-time charges, and professional services over the full...
Tree Testing
A usability method that evaluates the findability of topics in a product's information architecture.
Two-Pizza Team
An organizational principle originated at Amazon stating that teams should be small enough to be fed by two pizzas, typically six to eight...
U
Unit Economics
The per-customer revenue and cost math that determines whether a business model is financially sustainable at scale.
Usability Testing
A research method in which representative users attempt to complete realistic tasks with a product or prototype while researchers observe...
User Story
A short, informal description of a feature or requirement written from the end user's perspective, typically following the format: As a...
V
Value Proposition
A clear statement of the tangible outcomes a customer can expect from using a product and why those outcomes are superior to alternatives.
Value Stream Mapping
A visualization technique that maps the flow of work from idea to delivered customer value, revealing bottlenecks and waste.
Vector Database
A specialized database designed to store, index, and efficiently query high-dimensional vector embeddings, enabling fast similarity search...
Velocity
The average number of story points (or other units of work) a Scrum team completes per sprint, measured over several sprints.
Vibe Coding
Building software prototypes by describing what you want in natural language and letting AI tools generate the code.
Voice of Customer (VoC)
A systematic process for capturing customer needs, preferences, and feedback to inform product decisions.
W
Weekly Active Users (WAU)
The count of unique users who engage with a product at least once in a rolling seven-day period, used as a mid-frequency engagement metric...
Weighted Scoring
A prioritization method in which potential features or initiatives are scored against multiple criteria (e.
Win/Loss Analysis
A systematic review of why deals were won or lost, using structured interviews with buyers to surface product and GTM insights.
Wireframe
A low-fidelity visual representation of a product's layout and structure, showing the placement of elements without detailed design or...
Wizard of Oz Test
A product discovery technique in which users interact with what appears to be a fully functional product, but behind the scenes a human...
Work in Progress (WIP)
The number of work items actively being worked on at any given time, and the practice of limiting that number to improve flow.
Working Backwards
A product development approach pioneered by Amazon where teams start by writing a press release and FAQ for the finished product before...
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