A/B TestAn experiment comparing two variants to determine which performs better on a key metric.
AARRR FrameworkA growth model covering Acquisition, Activation, Retention, Referral, Revenue.
AcquisitionThe process of gaining new users or customers through various channels.
ActivationThe moment a user experiences the product’s core value for the first time.
AmplitudeA product analytics platform used to track user behaviour and optimise digital experiences.
AnalyticsTools and practices used to measure user behaviour and product performance.
API (Application Programming Interface)A way for different software systems to communicate and share data.
AttributionAssigning credit to marketing channels for conversions or user actions.
Auto TrackA method of tracking all user interactions on a website or app without manual instrumentation.
BackendThe server-side part of a web application that handles data processing and business logic.
BigQueryGoogle’s fully-managed data warehouse for large-scale analytics.
Bounce RateThe percentage of users who leave after visiting only one page.
CAC (Customer Acquisition Cost)The average cost to acquire a new customer.
Canonical Event NamesStandardised naming conventions for events to maintain consistency in tracking.
Causal InferenceA method used to determine whether one factor causes an effect in a given context.
CDP (Customer Data Platform)A system that collects and unifies customer data from multiple sources.
Channel SaturationThe point at which adding more spend to a channel yields diminishing returns.
ChurnThe percentage of users or customers who stop using a product over a given period.
CLV (Customer Lifetime Value)The total worth of a customer over the entire relationship with a brand.
Cohort AnalysisA method of analysing user behaviour grouped by shared characteristics over time.
Conversion RateThe percentage of users who complete a desired action, like signing up or purchasing.
Copy TestingTesting different text variations to see which drives better engagement or conversions.
CRM (Customer Relationship Management)Software used to manage customer data and interactions.
Cross-SellEncouraging customers to purchase complementary products or services.
CTR (Click-Through Rate)The ratio of users who click on a specific link compared to total views.
Custom EventA user-defined event tailored to a specific product or business need.
Data EnrichmentEnhancing raw data with additional context or third-party sources.
Data LayerA structured layer on a site that stores key user and event data for analytics tools.
Data PipelineA series of processes that move and transform data from source to destination.
DAU (Daily Active Users)The number of unique users engaging with a product daily.
Drop-OffThe point in a funnel where users stop engaging or fail to complete a step.
E2E Test (End-to-End Test)A test that simulates real user scenarios to validate full system flow.
Edge CaseA rare or extreme condition that tests the limits of a system or feature.
Engagement RateThe percentage of users who interact with a feature or content.
Event TaxonomyA structured system for naming and categorising events across products.
Event TrackingCapturing specific user actions (e.g. clicks, scrolls, signups) for analysis.
Experiment HoldoutA group of users excluded from changes in an experiment to serve as a control.
Experimentation VelocityHow quickly a team can ship and learn from experiments.
Feature FlagA switch that enables or disables a feature without deploying new code.
Feature RolloutThe gradual release of a new feature to users, often using feature flags.
Friction PointAn obstacle or difficulty that hinders user progress or satisfaction.
FunnelA visualisation of the steps users take toward a conversion goal.
GA4 (Google Analytics 4)The latest version of Google Analytics, focused on event-based tracking.
Growth LoopA self-reinforcing system where user actions drive further growth.
Growth ModelA structured representation of how a product grows (users, revenue, etc.).
Growth North StarThe ultimate metric guiding growth efforts across teams.
Guardrail MetricA secondary metric in experiments used to monitor unintended negative impact.
HeatmapA visual tool showing where users interact most on a page.
ICP (Ideal Customer Profile)A detailed description of the type of customer who gains the most value from a product.
IncrementalityThe additional value generated by an action that wouldn’t have occurred otherwise.
K-FactorA measure of virality based on how many new users each existing user brings.
Lagging MetricAn outcome-based metric that reflects past performance (e.g. revenue).
Lead TimeThe amount of time between idea conception and experiment delivery.
Leading MetricA predictive metric indicating future performance (e.g. trial-to-paid conversion).
Looker StudioA Google tool for building dashboards and visualising data.
LTV (Lifetime Value)The projected revenue a customer will generate during their relationship with a business.
MAU (Monthly Active Users)The number of unique users engaging with a product each month.
MicrocopySmall bits of UI text (e.g. button labels, error messages) that guide user behaviour.
MVP (Minimum Viable Product)The most basic version of a product that can still deliver value and be tested.
North Star MetricA single, high-level metric that best captures the product’s value to users.
NPS (Net Promoter Score)A measure of customer loyalty based on likelihood to recommend.
OnboardingThe process of guiding users to experience value early in their journey.
Opt-In RateThe percentage of users who consent to marketing or data collection.
PersonalisationTailoring content, experiences or messaging based on user data.
Pre/Post AnalysisComparing key metrics before and after a change to assess impact.
Product-Led Growth (PLG)A go-to-market strategy where the product itself drives acquisition and retention.
Qualitative DataDescriptive insights (e.g. surveys, interviews) about user motivations and pain points.
Quantitative DataNumerical data that measures user behaviour at scale.
ReferralWhen existing users bring in new users, often incentivised.
Regression TestingRe-testing existing features after changes to ensure nothing is broken.
RetentionThe ability to keep users engaged and returning over time.
Retention CurveA graph showing how user retention changes over time.
RFM SegmentationGrouping customers based on Recency, Frequency, and Monetary value.
RICE ScoringA prioritisation framework using Reach, Impact, Confidence, and Effort.
Run RateA projection of future performance based on current data (e.g. MRR x 12).
Sample Size CalculatorA tool to determine how many users are needed for a statistically significant test.
SegmentationDividing users into groups based on behaviour, demographics, or value.
SQL (Structured Query Language)A programming language used to manage and query databases.
StickinessHow frequently users return to a product, often measured as DAU/MAU.
Time to Value (TTV)The time it takes for a user to reach a meaningful outcome or benefit.