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Getting Started with ISO: Document Control

ISO document control for dairy and food quality teams - Watson Dairy Consulting, ISO 9001, ISO 22000 and HACCP aligned
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This guide takes you through getting started with an ISO quality system — and, in particular, how to set up and control your documentation, which is the single most important part of the whole exercise. You can read it, or press Listen above to have it read aloud, section by section.

What you'll learn
  • How to structure an ISO implementation — who does what.
  • The three-tier documentation hierarchy and why documentation is the heart of ISO.
  • What must be controlled, and how to control it.
  • How to write documents people actually follow — and how much is "just right".
  • How to design a document-coding system that identifies any document at a glance.
1

Implementation structure

A quality system is built by people, not by paperwork. Before you write a single procedure, put the right structure in place:

  • Steering committee — senior ownership, with the authority to make decisions stick.
  • Project team and team leaders — to carry the day-to-day work, area by area.
  • Subject-matter experts — the operators and engineers who actually know how the plant runs. Don't write procedures without them.
  • Allocated areas — divide the plant into manageable zones (intake, processing, packing, CIP, lab).

Communication skills are essential throughout — the system succeeds or fails on how well people talk to each other.

2

What ISO is — and isn't

ISO gives you a disciplined framework for quality, but it does not, by itself, deliver everything. Some issues belong to wider Total Quality Management (TQM):

  • Leadership
  • Team building
  • Communication
  • Customer service
  • Strategic planning

ISO won't hand you those — it gives you the structure on which they sit. So identify and prioritise the training your managers and supervisors will need to carry them.

3

What is required: the documentation pyramid

Picture your documentation as a pyramid, three tiers deep — general at the top, specific at the bottom:

Quality ManualDescribes the system as a whole; states general policies and the distribution of authority. (No longer mandatory under ISO 9001:2015, but still widely used for training and audit.)
Operating proceduresDefine how work flows between departments — the cross-functional flow — and how it is controlled.
Work instructionsDefine exactly how a task is performed, step by step, within a single department.
4

Documentation strategy — the heart of ISO

Documentation of the output verifies the validity of the process it came from. If you can't show how something was made, you can't prove it was made correctly.

The single most important aspect of ISO. Your documentation forms the basis on which your registration audit is built — and it's the foundation on which a robust quality system stands.
5

Quality documentation, defined

Quality documentation is "any documentation upon which you make a quality decision."

If a record, drawing, specification or instruction influences whether you accept, hold or release product — it's quality documentation, and it must be controlled.

6

Why control documents?

The ISO 9001 quality management standard (clause 7.5) is specific. Document control ensures that:

  • all documents relating to the product — its design, manufacture and maintenance — are captured, controlled and properly distributed;
  • personnel always have access to the latest version, and that version reflects the true state of affairs;
  • any change is promptly documented, then registered, approved, distributed and implemented;
  • obsolete documents are promptly removed, or clearly marked obsolete, so nobody picks one up by mistake.
7

What must be controlled?

Controlled documents include: drawings; specifications; operational procedures; inspection, testing and other work instructions; the Quality Manual and its procedures; inspection and test reports and data; and the visual aids on the plant floor. If a decision rests on it, it's on this list.

8

Outline of the system & terminology

Terminology — words matter here:

  • Procedure — describes the process.
  • Work instruction — tells you how to perform the process.
  • Attachment — information attached to a procedure for clarification.

Determine what to control: procedures, work instructions, forms, attachments, external documentation, prints and drawings.

9

Document control methods

Decentralised

  • each function looks after its own documents;
  • common in product-oriented systems;
  • tends to produce a multitude of control schemes and inconsistent formats.

Centralised

  • a functional area retains control over content;
  • the common strategy of process-oriented systems;
  • one scheme across the organisation — common format, style and look.
For most modern dairy plants, centralised wins — one source of truth, one consistent system.
10

Setting up & writing effective documents

Keep the system as simple and manageable as possible — that simplicity is critical to success.

Build effective documents

  • Clear, concise, user-friendly.
  • Short sentences starting with a command verb.
  • Present tense; make it clear who performs the task.
  • Format for reading — headings and white space.

Have the right amount

Avoid too much (no overlap; don't put one process in more than one instruction) and avoid too little (the goal is consistency).

The test: "If two trained employees performed this task, would they do it the same way?" If maybe not, a work instruction is justified. If they'd already do it identically, you may be writing for the sake of it. Aim for just right — SOPs and work instructions covering your key processes, no more.
11

Where to keep your documents

Plan the infrastructure before you commit: use the ISO standards and specifications, prepare a blueprint, then choose your system — a word-processing setup, an existing database, packaged document-control software, or (today) a cloud-based electronic document management system with version control and audit trails.

What's best for your company? Consider company size, computer setup and availability, the number of processes, and the rate of change. You may need more than one system — e.g. one for quality-system documents and a separate one for engineering documents.

12

What goes into a document code?

A good code tells you everything at a glance. Reading across the row: which manual, which area, the document type, the sequence number, the revision, and any references.

Orig.ManualManualAreaAreaTypeSOP No.RevReferences
WTP05F019AGea0001377

Originator (W = Watson Dairy Consulting) · manual · plant area · document type · SOP / sequence number · revision · reference code.

13

The document code, decoded

Now the same idea as a worked example — each character carries meaning:

ORIGINATORMANUAL AREATYPE SOP No.REV REFERENCES W T P 0 5 F 0 1 9 A Gea0001377 W — originator / your company prefix (W = Watson Dairy Consulting) TP — which of 5 quality manuals (TP = Technology & Production Manual) 05 — plant area (e.g. 05 = Evaporator) F — document type (P = procedure, W = work instruction, F = form, T = test, S = specification) 019 — SOP / sequence number A — revision (letter or number) Gea0001377 — associated / reference documents

Reads, in plain English: a Watson Dairy Consulting document, Technology & Production Manual, Evaporator area, form 019, revision A — with its reference document alongside. One string, and you know exactly what you're holding.

Knowledge check

Five quick questions — click an answer to check yourself.

14

Where Watson Dairy Consulting can help

That's the essence of getting started with ISO — and of building documentation you can stand behind. For assistance with ISO 22000 (the Food Safety Quality Management System standard), with Total Quality Management, or with infant formula and milk powder manufacturing, Watson Dairy Consulting is here to help.

Talk to us Infant formula & milk powder

Related: infant formula & milk powder manufacturing, milk spray drying, spray dryer crack testing.

Frequently asked questions

What is the single most important aspect of ISO?
Documentation. Documentation of the output verifies the validity of the process it came from, and it forms the basis on which your registration audit is built. It is the foundation on which a robust quality system stands.
What counts as quality documentation?
Any documentation upon which you make a quality decision. If a record, drawing, specification or instruction influences whether product is accepted, held or released, it is quality documentation and must be controlled.
What are the three tiers of ISO documentation?
The Quality Manual describes the system and states general policies and the distribution of authority; procedures define how cross-functional work flow is controlled; and work instructions define exactly how a task is performed, step by step, within a department. General at the top, specific at the bottom.
How do I decide whether a work instruction is needed?
Ask whether two trained employees would perform the task the same way. If the answer is “maybe not”, a work instruction is justified. If they would already do it identically, the instruction may be unnecessary. Aim for SOPs and work instructions that cover the key processes, no more.
What goes into a document code?
A structured code identifies the originator (for example, W for Watson Dairy Consulting), the manual, the plant area, the document type, the SOP or sequence number, the revision and any reference documents — so any document can be identified at a glance. The revision is the part ISO 9001:2015 clause 7.5.3 cares about most, because the current revision must always be controlled and visible.
Centralised or decentralised document control — which is better?
Decentralised control lets each function manage its own documents and suits product-oriented systems, but it tends to produce inconsistent formats and multiple control schemes. Centralised control gives one consistent format and revision scheme across the whole organisation and suits process-oriented systems. For most modern dairy plants, a centralised electronic system is the better choice.
Is a Quality Manual still required under ISO 9001:2015?
No. The 2015 revision removed the explicit requirement for a Quality Manual and for six mandatory procedures, and merged “documents” and “records” into the single term “documented information” (clause 7.5). Many plants still keep a manual for training and audit, but it is now good practice rather than a requirement.
How does this apply to infant formula and ISO 22000?
The same clause 7.5 document controls underpin ISO 22000 and FSSC 22000 food-safety systems — HACCP plans, CCP monitoring, traceability and recall records. In infant formula, where the consumer is highly vulnerable, controlled records are also what make a fast, accurate recall possible. See infant formula & milk powder manufacturing.

Further reading: John Watson publishes articles on dairy industry topics on LinkedIn — from infant formula safety and milk supply to plant design, yield improvement and dairy commodity outlook. Browse all articles by John Watson on LinkedIn →