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3-Tiered Architecture is a software design pattern that separates an application into three layers: presentation, logic, and data.

A Lean methodology concept identifying seven types of waste in processes to improve efficiency.

A principle stating that 80% of effects come from 20% of causes, often used to prioritize tasks and identify key areas of focus.

A method of comparing two versions of a webpage or app to see which performs better in terms of user engagement or conversions.

Acquisition, Activation, Retention, Referral, and Revenue (AARRR) is a metrics framework for assessing user engagement and business performance.

The percentage of users who start but do not complete a desired action, such as completing a form or purchasing a product.

A type of testing conducted to determine if the requirements of a specification are met, often the final step before delivery to the customer.

A model predicting the speed-accuracy trade-off in pointing tasks when using devices like a mouse, important for user interface design.

A tool used to prioritize tasks based on their impact and effort, helping to focus on high-value activities.