# AI Product & AEO Glossary | Gr8r Studio | Gr8r Studio > Plain-English definitions of the terms behind AI products, workflow automation and answer engine optimisation: RAG, AI agents, evals, AEO and more. Source: https://gr8rstudio.com/glossary Glossary # The words behind AI products, in plain English. 20 terms on AI, product, search and engineering, each answered in a line first and explained after. [Discuss your project](https://gr8rstudio.com/contact)[Read our insights](https://gr8rstudio.com/blog) [A](#letter-A)[D](#letter-D)[E](#letter-E)[F](#letter-F)[G](#letter-G)[H](#letter-H)[L](#letter-L)[M](#letter-M)[P](#letter-P)[R](#letter-R)[S](#letter-S)[V](#letter-V)[W](#letter-W) Search · 3 Engineering · 3 AI · 9 Product · 5 - $115M+ Client Funding - [ 1.8K+ GitHub Stars ](https://github.com/gr8rstudio/gr8r-studio) - 50+ Projects Shipped AI helps us move faster. Our team makes the decisions and stands behind the work. - hyperAI A–Z ## Every term. A - [ AEO Search Answer engine optimisation (AEO) is the practice of structuring a website so AI assistants and answer engines can find, understand and quote it. It favours direct answers, clear page structure, structured data and content that matches real buyer questions. ](https://gr8rstudio.com/glossary/answer-engine-optimisation) - [ Agentic UX Product Agentic UX is the design of products where AI agents carry out tasks for people. It focuses on how users set goals, see what the agent is doing, approve key actions and correct or undo its work. ](https://gr8rstudio.com/glossary/agentic-ux) - [ AI agent AI An AI agent is software that uses a language model to decide which steps to take towards a goal, calling tools such as search, databases or other apps along the way, rather than producing a single reply. ](https://gr8rstudio.com/glossary/ai-agent) - [ AI evaluation AI AI evaluation, often called evals, is the structured testing of an AI system against a set of realistic examples with agreed success criteria, so teams can measure quality, catch regressions and decide whether it is ready to release. ](https://gr8rstudio.com/glossary/ai-evaluation) - [ AI hallucination AI An AI hallucination is output from a language model that sounds confident but is false, made up or not supported by its sources, such as an invented citation, figure or policy. ](https://gr8rstudio.com/glossary/ai-hallucination) D - [ Design system Product A design system is a shared library of reusable components, visual styles and usage rules, kept in both design tools and code, that helps teams build consistent, accessible products faster as they grow. ](https://gr8rstudio.com/glossary/design-system) E - [ Embeddings AI Embeddings are lists of numbers that represent the meaning of a piece of text, an image or other data. Items with similar meaning get similar numbers, which lets software search and group content by meaning rather than exact words. ](https://gr8rstudio.com/glossary/embeddings) F - [ Fine-tuning AI Fine-tuning is further training an existing AI model on a set of your own examples so it learns a specific style, format or task more reliably than prompting alone can achieve. ](https://gr8rstudio.com/glossary/fine-tuning) G - [ GEO Search Generative engine optimisation (GEO) is the work of making your brand and content more likely to be mentioned, summarised or cited by generative AI tools. It overlaps heavily with AEO, with extra focus on brand presence across the wider web. ](https://gr8rstudio.com/glossary/generative-engine-optimisation) H - [ Headless CMS Engineering A headless CMS is a content management system that stores and edits content separately from the website or app that displays it. Content is delivered through an API, so the same content can power many front ends. ](https://gr8rstudio.com/glossary/headless-cms) - [ Human-in-the-loop AI Human-in-the-loop (HITL) is a design approach where people review, approve or correct an AI system's output at defined points, so important decisions are checked by someone accountable before they take effect. ](https://gr8rstudio.com/glossary/human-in-the-loop) L - [ LLM AI A large language model (LLM) is an AI model trained on very large amounts of text to predict and generate language. It can draft, summarise, classify, extract and reason over text, but it can also produce confident errors. ](https://gr8rstudio.com/glossary/large-language-model) M - [ MCP Engineering The Model Context Protocol (MCP) is an open standard for connecting AI assistants and agents to external tools and data, such as files, databases and business apps, through a common interface instead of one-off integrations. ](https://gr8rstudio.com/glossary/model-context-protocol) - [ MVP Product A minimum viable product (MVP) is the smallest version of a product that real users can use to show whether it solves their problem. It focuses on one core job, done well, to learn before investing further. ](https://gr8rstudio.com/glossary/minimum-viable-product) P - [ Product discovery Product Product discovery is the work of understanding users, their problems and the business constraints before building, so a team decides what to build, and what not to, based on evidence rather than assumptions. ](https://gr8rstudio.com/glossary/product-discovery) - [ Prompt engineering AI Prompt engineering is the practice of writing, structuring and testing the instructions, context and examples given to a language model so it produces useful, consistent output for a specific task. ](https://gr8rstudio.com/glossary/prompt-engineering) R - [ RAG AI Retrieval-augmented generation (RAG) is a technique where an AI system first searches your own documents or data for relevant passages, then gives those passages to a language model so its answer is grounded in your information. ](https://gr8rstudio.com/glossary/retrieval-augmented-generation) S - [ Structured data Search Structured data, often called schema markup, is machine-readable code added to a web page that describes what the page contains, such as an organisation, article, product, service or FAQ, so search and answer engines can understand it reliably. ](https://gr8rstudio.com/glossary/structured-data) V - [ Vector database Engineering A vector database stores embeddings and finds the items most similar to a query quickly. It is the search layer behind many semantic search, recommendation and retrieval-augmented generation features. ](https://gr8rstudio.com/glossary/vector-database) W - [ Workflow automation Product Workflow automation uses software to carry out repetitive steps in a business process, such as moving data, routing requests or drafting documents, so people spend less time on manual handling and more on decisions. ](https://gr8rstudio.com/glossary/workflow-automation) ## Book a call with our CEO. Pick a time that suits you. A product idea or a workflow that slows your team down: a clear problem is enough, no full specification needed. 5.0 [11 verified reviews Read them on Contra ](https://contra.com/tanjimislam/reviews) - Tanjim is a great designer without any doubt. I love the way he heard my project details and created the better design I was looking for. I highly recommend Tanjim to other Business owners. Thanks Tanjim 🫶 Muhammad Talha · Founder, SetFrame - Amazing work as always! 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