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RAG Chatbot for SOPs That Cites the Step on the Shop Floor

A use case: operators ask a question on a tablet or phone and get the step from your approved SOPs, with the document and section cited, or a plain "not covered".

Use case: an example of what we build, not a client project

Manufacturing4 min read

Factory worker in a hairnet looking something up on a shop-floor computer
Industry
Manufacturing
Platforms
Web, Android, iOS, Shop-floor tablets
  1. The challenge

    Plant SOPs, work instructions and safety procedures run to hundreds of controlled documents. An operator who needs one step mid-shift either walks to a binder, which may hold an old revision, or stops a supervisor. New starters ask the same questions every week.

  2. What we would build

    We would index only the current, approved revisions from your document control system and let operators ask in plain words on a tablet or phone. Each answer quotes the relevant step and names the SOP number, revision and section, and the assistant says so when the documents do not cover a question.

  3. What it would change

    Your operators could find the right step without leaving the line, your supervisors would field fewer repeat questions, and your QA team would see which questions the SOPs fail to answer. This is an example of what we build, not a delivered project.

What the system would do.

The parts of the system and the job each one would do for your team.

  • Answers with the SOP reference

    Every answer names the SOP number, revision and section, so the operator can open the source page in one tap.

  • Current revisions only

    Superseded and draft documents drop out of the index the moment document control releases a new revision.

  • Says when it does not know

    If the approved documents do not cover a question, the assistant says so and points to the supervisor instead of guessing.

  • Access by role and area

    Operators see the procedures for their line; maintenance, QA and EHS each see the documents their role allows.

  • Safety-critical steps flagged

    Lockout, chemical handling and permit-to-work steps are shown word for word from the SOP, never paraphrased.

  • Gap report for QA

    Unanswered and frequently asked questions are logged so document control can see which SOPs need rewriting.

Built with

The tools behind it, layer by layer.

  1. Database

    • Vector database
  2. AI

    • Document parser with OCR
    • Embedding model
    • LLM API
  3. Integrations

    • Single sign-on with role groups
    • Document control system connector

The use case in full

The problem

A RAG chatbot for SOPs starts from a familiar scene. An operator on the night shift needs the torque sequence for a changeover, or the order of steps to isolate a machine. The answer exists, somewhere in a controlled document, but finding it means a walk to the binder or a call to a supervisor.

Binders drift out of date. A revision is approved in the document control system, yet the printed copy on the line still shows the old one. New starters lean on whoever is nearby, and the same questions reach the same experienced people every week.

Searching a shared drive does not help much either. Keyword search returns forty files, and none of them says which step answers the question.

What we would build: a RAG chatbot for SOPs on the shop floor

We would build an assistant that answers from your approved procedures and nothing else. It works through retrieval-augmented generation, or RAG, which is simpler than it sounds:

  • Split. Each released SOP, work instruction and safety procedure is broken into short passages, keeping the document number, revision and section with every passage.

  • Index. Each passage is turned into a numeric fingerprint of its meaning and stored in a searchable index, so "how do I clear a jam on the wrapper" finds the right passage even if the SOP says "remove obstruction".

  • Search, then answer. When someone asks, the system finds the closest passages first. Only then does a language model write a short answer, using those passages alone, and cite where each part came from.

If nothing relevant turns up, the assistant says the approved documents do not cover the question. It does not fill the gap from general knowledge.

Operators reach it from a shop-floor tablet, a phone or a browser, signed in through your existing accounts. What each person can search depends on their role and area.

How it works

An operator types or speaks a question at the line. The assistant searches the current procedures for that line and replies with the step, quoted, plus a tag such as the SOP number, revision and section. One tap opens the source page.

If the step is safety-critical, such as lockout, chemical handling or a permit-to-work task, the reply shows the SOP wording exactly rather than a summary. If the question falls outside the documents, the operator is pointed to the shift supervisor, and the question goes into a log.

Each week, QA or document control reviews that log. Questions the SOPs could not answer become candidates for a revision. Once the new revision is released, the index updates and the old passages drop out.

What the AI does, and what your team decides

The AI finds passages, writes a short answer from them and cites its sources. It also groups unanswered questions so patterns stand out.

Your people keep every call that matters. Document control decides which documents go into the index and when. Supervisors decide whether a task can go ahead. EHS owns the wording of safety steps, and the assistant never rewrites them. Training and sign-offs stay exactly where they are today.

What the research says

  • Finding the answer is a job in itself. Atlassian's State of Teams 2025, a survey of 12,000 knowledge workers and 200 executives by the software vendor, found that teams waste 25% of their time just searching for answers (Atlassian, 2025). An operator who can ask in plain words on a tablet gets the step without hunting through a document library.

  • Retrieval cuts errors but does not end them. Stanford RegLab and HAI researchers tested AI legal research tools built on retrieval-augmented generation in 2024. Some still gave incorrect information more than 17% of the time, and one more than 34% (Stanford HAI, 2024). That is why this assistant quotes the SOP step itself and says plainly when the documents do not cover a question.

  • Ungrounded AI answers are a known risk. NIST's Generative AI Profile (NIST AI 600-1, July 2024) names confabulation, confidently stated but false content, as a core risk. It also recommends reviewing and verifying sources and citations in generative AI outputs (NIST). That is why every answer here carries its reference.

Guardrails

  • Data access. Only released documents are indexed. Role groups decide who sees which procedures, and the same rules apply to search results, so nobody gets an answer from a document they could not open.

  • Human approval. The assistant explains a procedure; it never authorizes the task. Any task that needs a permit, a sign-off or a supervisor still needs one.

  • Logging. Every question, the passages retrieved, the answer and the document revision are logged, so QA can audit what an operator was told and when.

  • Model choice. We would pick the language model and hosting to suit your data rules, including running it in your own cloud account where needed.

Is this right for you?

A few questions help decide:

  1. Are your SOPs held in one controlled system, or spread across drives and binders?

  2. Which procedures are safety-critical and must always be quoted exactly?

  3. Do operators have tablets or phones on the floor, and in which languages do they work?

  4. Who would own the weekly review of unanswered questions?

For the basics, read our guide to retrieval-augmented generation. Our AI chatbot development page covers how we would build the assistant, AI agent development covers the wider automation, and you can also explore our manufacturing software work.

Common questions

What is a RAG chatbot for SOPs?

RAG stands for retrieval-augmented generation. Your SOPs are split into short passages and indexed. When an operator asks a question, the system first searches those passages, then a language model writes an answer from only what it found and cites the SOP it came from.

How do you stop the assistant from quoting an old SOP revision?

We would connect it to your document control system and index only released revisions. When a new revision is approved, the old passages are removed and the new ones indexed, so an answer always points to the current version.

Can operators use it for lockout or chemical handling steps?

They can look the step up, but for safety-critical procedures the assistant would show the SOP text word for word with its reference and link to the full document. It supports the procedure; it does not replace training, permits or the supervisor's sign-off.

What happens when the SOPs don't answer a question?

The assistant says the approved documents do not cover it and suggests asking the shift supervisor. The question is logged so QA or document control can decide whether an SOP needs a new section.

Does it work with scanned or paper-based SOPs?

Yes, if the scans are legible. We would run them through OCR first and ask your document control team to check a sample of the extracted text before anything goes live.

More AI use cases.

Other examples of what we build. None of them is a client project.

See all AI use cases

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