A/B test
A controlled experiment comparing two variants against a predefined outcome metric.
Technology terms,
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Search more than 400 concepts across artificial intelligence, data, programming and cloud computing. Every definition connects to relevant syllabus modules, practical articles and professional certification tracks, turning vocabulary into a clear next step.
435 carefully defined terms100+ terms in every categoryModule, article & certification links
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Four focused technology glossaries.
Each category hub explains how its vocabulary fits together before presenting more than one hundred searchable definitions.
01108 TERMS
Artificial Intelligence
Understand 100+ artificial intelligence terms covering machine learning, deep learning, generative AI, NLP, computer vision, prompt engineering and AI agents.
Open category glossary →02108 TERMSData and Analytics
Learn 100+ data terms across analytics, SQL, databases, statistics, data science, pipelines, warehouses and big-data architecture with clear explanations.
Open category glossary →03109 TERMSProgramming
Explore 100+ programming terms covering algorithms, Python, Java, C, C++, JavaScript, testing, APIs, software design and developer workflows.
Open category glossary →04110 TERMSCloud Computing
Understand 100+ cloud terms covering AWS, Microsoft Azure, Google Cloud, compute, storage, networking, containers, security, reliability and cost.
Open category glossary →Showing 24 of 435 terms · search to explore allClear definitions · Relevant learning paths
Abstract class
A class intended for extension that may define shared behaviour and incomplete methods.
Abstraction
The practice of exposing essential behaviour while hiding unnecessary implementation details.
Access modifier
A keyword that controls where a class member or type can be used.
Accuracy
The proportion of evaluated predictions that a model classifies correctly across all classes.
ACID transaction
A database transaction that preserves atomicity, consistency, isolation and durability.
Activation function
A mathematical function that introduces non-linearity into a neural network layer.
Agent orchestration
The coordination of model calls, tools, state, checks and handoffs inside an agent system.
Agentic workflow
A controlled sequence in which an AI system selects tools and actions to pursue a goal.
Aggregation
The calculation of summaries such as totals, averages or counts across groups of records.
AI agent
A software system that uses a model, tools and state to pursue a goal through one or more controlled actions.
AI alignment
The practice of shaping an AI system so its behaviour remains consistent with intended human goals and constraints.
AI assistant
An AI application designed to help a person complete defined information, creation or decision-support tasks.
AI ethics
The study and practice of developing AI with attention to fairness, accountability, rights and social impact.
AI governance
Policies, responsibilities and controls used to oversee AI systems throughout their lifecycle.
AI safety
Methods for preventing, detecting and reducing harmful or unintended behaviour in AI systems.
Algorithm
A finite sequence of steps for solving a problem or producing a result from an input.
Algorithmic complexity
The growth of time or memory requirements as problem size changes.
Analytical query
A query designed to compare, group or summarise data for investigation and decision-making.
Anomaly detection
The task of identifying observations that differ meaningfully from expected patterns.
Application programming interface (API)
A defined way for software components to request data or behaviour from one another.
Approximate query
A query that trades exactness for faster answers on large datasets.
Array
A fixed or indexed collection of elements accessed by position.
Arrow function
A concise JavaScript function expression with lexical this binding.
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