A machinist in a defence component unit photographs a drawing at his machine. He wants to check a dimension on nights without walking to the document controller. It feels harmless. Months later he joins a rival shop, and the photo is still in his phone gallery. Nobody intended harm. Nobody had told him where the line was, either.
Our HR overview for drawing-controlled component work counts this among the patterns that set the sector apart. The customer decides what is controlled. The supplier decides who touches it, and that is a people decision.
Where controlled information slips
- Phones at the bench: photographs of drawings, fixture set-ups or test screens taken for convenience.
- Uncontrolled copies: a photocopied print kept in a locker, a toolbox or a drawer after the revision has changed.
- Shared logins: one CAD vault account used by a whole programming team, so nobody knows who opened which model.
- Pen drives: CNC programmes carried between the office and the machine on removable media that then goes home.
- Visitors: a supplier's technician or a candidate walked through the shop past drawings pinned at the controls.
- Leavers: vault access, email and badge left active for days after the last shift.
What a slip costs
A customer who finds one uncontrolled copy will look for more. Audits grow longer, and new work may go elsewhere while trust is rebuilt. Inside the unit, the cost is suspicion. Managers who fear leaks restrict access so tightly that juniors cannot learn, and a few senior people end up holding every drawing. That feeds the key-person problem explored in our piece on scarce know-how.
Why drawings keep escaping
Most small suppliers treat drawing control as a stores or IT job. The rules exist on paper, but nobody explains them to a new operator in his own language. Access goes to anyone who asks the right clerk, and seldom comes back. Vague roles leave nobody sure who should see what. And exits are handled by accounts, which pays the final dues but does not think about vault logins or the copy in the locker.
Seven steps to tighter, fairer access
- 1
Draw an access map by role
List each role, from operator to programmer to inspector, and the drawing folders, vault areas and physical copies it needs. A single sheet suffices.
- 2
Write access into the role description
State in each job description what controlled material the role may see and handle. Access then belongs to the post, not to whoever the controller likes.
- 3
Name the approver
One person, usually the document controller or quality head, approves every access change. HR records it in the employee file.
- 4
Introduce joiners in stages
In the first week, explain what controlled means, show the controlled-copy stamp and where phones go. Grant drawing access when the supervisor confirms the role, not on day one by default.
- 5
Take a signed acknowledgement
Ask each joiner to sign a plain-language note on handling drawings, photos and copies. Keep it with the induction record.
- 6
Make removal part of every exit
Add vault, email, programme folders, badge and any physical copies to the exit checklist, each confirmed by the person who controls it, before the final shift ends.
- 7
Check the map twice a year
Compare who has access with who still needs it. People who moved roles often keep old rights.
What the induction talk on drawings should cover
Joiners on a controlled floor need a short, concrete briefing in the language they think in. Abstract warnings about secrecy do not stick. Show real objects instead.
- A print with the controlled-copy stamp beside an uncontrolled photocopy, and how to tell them apart.
- The phone locker, the landline and the rule for photos anywhere past the turnstile.
- How a programme travels from the CAM office to the control without a pen drive going home.
- Whom to ask when a drawing at the machine looks out of date.
- What happens to badge, vault login and any prints when someone leaves.
Ten minutes at the machine, with the supervisor present, beats an hour of slides. Repeat the briefing whenever someone moves to a cell handling a different customer's work.
Three quick audits to begin with
Walk the floor and count uncontrolled copies at machines and benches. Ask the IT person how many vault accounts are shared. Pull the last few exits and see whether access removal was recorded. Those three checks usually show where to start.
The policy and governance page for defence parts makers covers how such rules are written and kept current. For the joining stage, see how defence suppliers induct new hires. Our leaver routine design shows how removal of access fits into the last week.
Discretion as a recognised skill, not a lockdown
Over-control has its own cost. If only two people may open any drawing, every question waits for them and learning stops. A clear map lets the unit widen access deliberately, role by role, as people prove themselves. Discretion becomes something staff are trusted with and recognised for, not a reason to keep them in the dark.
