AI automation terms. In plain English.
Short definitions of the words that come up when a business scopes AI agents, automation, and custom software. Each term links to the page that explains it in practice.
- Acceptance criteria
The written conditions a result must meet before the workflow owner accepts it: what must be correct, what may be uncertain, and what must stop the process.
More on this- AI agent
Software that uses a language model to work toward a goal: it reads instructions, gathers context, chooses tools, and prepares or takes actions within limits you set. A good agent stops for a person when it is unsure.
More on this- Approval gate
A defined point where work stops until a named person accepts, revises, or rejects it. Sending, filing, paying, and deleting usually sit behind one.
More on this- Audit trail
A record of who asked for what, which sources were used, what was proposed, and who approved it. Required wherever money, records, or customers are affected.
More on this- Baseline
The measured behavior of the current process or system before a change. Without one, an improvement claim cannot be checked.
More on this- Business process automation (BPA)
The broader practice of redesigning a process so that software handles the predictable parts end to end. AI adds judgment for messy inputs; it does not replace the rules.
More on this- Context window
The amount of text a model can consider at once, measured in tokens. Long documents must be split or retrieved in parts.
More on this- Cost per accepted task
Everything spent to produce accepted results (model calls, tools, infrastructure, retries, review labor) divided by the number of results a reviewer accepted.
More on this- Data retention
How long inputs, outputs, and logs are kept, by whom, and where. Set per system in the data path, including the model provider.
More on this- Document extraction
Turning the fields in a document (supplier, amount, dates, clauses) into structured data with a link back to the passage each value came from.
More on this- Document intelligence
The combination of extraction, comparison, and checklist review that gives a reviewer evidence rather than a summary.
More on this- Drift
Gradual change in results as sources, models, or inputs change while the workflow stays the same. Caught by regression tests and monitoring, not by hope.
More on this- Duplicate detection
Comparing an incoming record with existing ones under explicit rules, keeping the matching references so a reviewer can decide.
More on this- Embedding
A numeric representation of text that lets software find passages with similar meaning. The mechanism behind semantic search and most retrieval systems.
More on this- Evaluation (evals)
Repeatable tests that compare a workflow’s outputs with expected results on a fixed set of cases. The way to know whether a change helped or hurt.
More on this- Exception queue
The place uncertain or failed items wait for a person, with the source and the reason attached. A workflow without one hides its failures.
More on this- Fine-tuning
Training a model further on your own examples to change its style or behavior. Rarely the first step; retrieval and better instructions solve most business cases.
More on this- Golden set
A curated collection of inputs with known correct outputs, including the awkward cases, used to evaluate every version of a workflow the same way.
More on this- Guardrails
Checks around a model that constrain inputs, outputs, and actions: allowed tools, blocked topics, format validation, and stop rules.
More on this- Hallucination
A confident answer that is not supported by the sources. Reduced by retrieval, citations, and stop rules; never eliminated, which is why review exists.
More on this- Handoff
The point where the workflow and its operating record pass to the team that will run it: instructions, checks, credentials, owners, and what to do when it should stop.
More on this- Human in the loop
A workflow design where a person checks or approves specific steps before they take effect. The amount of review depends on risk and reversibility.
More on this- Idempotency
Designing an action so that running it twice has the same effect as running it once. Prevents duplicate records, emails, and payments after a retry.
More on this- Knowledge base
The approved set of documents, policies, and records an assistant may answer from. Its ownership, versioning, and access rules matter more than its size.
More on this- Large language model (LLM)
A model trained on large amounts of text that can read, summarize, classify, extract, and draft language. It predicts likely text; it does not know your data unless you supply it.
More on this- Latency
How long a step takes from request to result. Matters for interactive use; matters less for overnight batches, where cost and correctness dominate.
More on this- Least privilege
Giving software and people only the access a task needs, for only as long as it needs it. The default for any connection an agent uses.
More on this- Memory (agent)
What an assistant retains between steps or sessions: the current task, recent decisions, and approved facts. Decide what is remembered, for how long, and who can see it.
More on this- Model Context Protocol (MCP)
An open standard for connecting assistants to tools and data sources through a common interface, so integrations can be reused across models and products.
More on this- Model provider
The company whose models the workflow calls. Its terms decide training use, retention, and processing location, so the choice is recorded in the scope.
More on this- Multi-agent system
Several specialized agents that hand work to each other, for example a router, a researcher, and a drafter. More capable and harder to test than a single agent; use when one role is not enough.
More on this- Observability
Logs, traces, and metrics that show what a workflow did, which sources it used, and where it failed. The basis for monitoring and for investigating incidents.
More on this- Operating record
The written instructions, examples, checks, and stop rules that keep the next run on the rails. Code can be regenerated; the record cannot.
More on this- Optical character recognition (OCR)
Converting scanned images into text so the content can be read by software. Quality depends on the scan; unreadable pages should stop a check, not be guessed.
More on this- Orchestration
The code or platform that sequences steps, calls tools and models, handles retries, and records what happened. Where most of the reliability of a workflow lives.
More on this- Permissions (agent)
The explicit list of what an agent may read, propose, and do, per system. Read, propose, and write are separate grants; writes that matter wait for approval.
More on this- Pilot
A small, real scope built to answer a business question: does this workflow produce acceptable results at an acceptable cost? Not a demo, and not yet a rollout.
More on this- Prompt
The instructions and context given to a model for one request. Good prompts state the goal, the sources, the format, and what to do when information is missing.
More on this- Prompt injection
Instructions hidden in content the model reads (an email, a web page, a document) that try to make it ignore its rules. Treat all retrieved content as data, never as commands.
More on this- Regression test
Rerunning the golden set after a change to confirm nothing that used to work has broken. Essential when models, prompts, or sources change.
More on this- Retrieval-augmented generation (RAG)
A pattern where relevant passages are fetched from approved sources and given to the model with the question, so answers cite real documents instead of guessing.
More on this- Reversibility
Whether an action can be undone cheaply. Reversible actions can run with lighter review; irreversible ones wait for a person.
More on this- Robotic process automation (RPA)
Scripts that imitate clicks and keystrokes in existing screens. Useful when there is no API; brittle when screens change. Often a stopgap rather than a foundation.
More on this- System prompt
The standing instructions that define an assistant’s role, limits, and style for every request. Part of the operating record that keeps a workflow on the rails.
More on this- Token
The unit models use to count text, roughly three-quarters of an English word. Providers price model calls per token, so tokens drive the model line of operating cost.
More on this- Tool use (function calling)
The ability of a model to request an action, such as looking up a record or drafting an email, through a defined interface. Which tools exist and what they may do is a scope decision.
More on this- Vector database
A store optimized for finding embeddings that are close to each other. One of several ways to power retrieval; not required for every project.
More on this- Workflow automation
Connecting the steps of a repeated business process (intake, checks, approvals, follow-ups) so routine work moves by rule and exceptions reach a person.
More on this