Tech glossary A–Z
Jargon, decoded. Short definitions first, the full explanation one click away.
Comparing two versions of a web page, email, or feature with different groups of users to see which performs better. Data & Analytics
A software system that uses an AI model to plan and carry out multi-step tasks, often by calling tools, APIs, or other programs on its own. Artificial Intelligence
An AI assistant built into an application that helps a person with tasks as they work, while the person stays in control of decisions. Artificial Intelligence
The policies, roles, and processes an organization uses to decide how AI is built, bought, used, and monitored responsibly. Artificial Intelligence
Rules, filters, and checks placed around an AI system to keep its inputs, outputs, and actions within safe and acceptable limits. Artificial Intelligence
Application Programming Interface: a defined set of rules that lets one piece of software request data or services from another. Software Development
A server that sits in front of backend services and handles routing, authentication, rate limiting, and monitoring for API requests. Cloud & DevOps
A unique code that identifies an application or user when it calls an API, used to control access, track usage, and apply billing. Cybersecurity
Educational technology that adjusts content, difficulty, and pacing for each learner based on how they perform. EdTech
AI systems designed to pursue goals with some autonomy, planning steps, using tools, and acting on results rather than only answering prompts. Artificial Intelligence
An iterative approach to software development that delivers work in small increments and adapts to feedback instead of following a fixed upfront plan. Software Development
A finite, well-defined sequence of steps for solving a problem or performing a computation. Software Development
Systematic errors in an algorithm or AI model that produce unfair outcomes for certain people or groups. Artificial Intelligence
AI technology that listens to a consented clinician-patient conversation and automatically drafts the clinical note for review. HealthTech
An individual who invests personal money in an early-stage startup, usually in exchange for equity or convertible notes. Business & Retail Tech
The yearly value of a company's subscription or contract revenue that is expected to repeat, a key metric for SaaS businesses. Business & Retail Tech
Structuring content so search engines, voice assistants, and AI tools can pull it out as a direct answer to a user's question. Business & Retail Tech
The field of computer science focused on building systems that perform tasks normally associated with human intelligence. Artificial Intelligence
Technology that overlays digital information such as images, text, or 3D objects onto a live view of the real world. Hardware & Industry 4.0
The process of verifying that a user, device, or system is who or what it claims to be. Cybersecurity
A cloud feature that automatically adds or removes computing resources based on demand, so applications stay responsive without overpaying. Cloud & DevOps
A US electronic network, known as ACH, that moves money between bank accounts in batches for payroll, bill payments, and transfers. FinTech