Which People Can My Factory Not Run Without? A 20-Minute Key-Person Map
"Which people can my factory not run without?" As of 17 October 2026, a 20-minute key-person map answers it. List every machine and process, write who can do it alone and who can cover, and mark any row with only one name red. In our worked example, one week without a single setter costs about ₹1.6 lakh.
Last checked: 17 Oct 2026.
By the Mama Editorial Team. For promoters and MDs of plants with 200 to 1,000 people, in any industry. For industry versions, see the pieces on CNC setters, EMS line skill matrices, garment line masters and fryer and oven settings in food plants. Every ₹ figure is a worked example on stated assumptions.
Key takeaways
- The map is about skills, not about people's worth. It asks one question per task: if this person is away tomorrow, who does it? A red row is a gap in how the plant is organised, not a judgement on anyone.
- Absence is routine, not rare. The Labour Bureau's absenteeism rate for directly employed regular factory workers in Haryana was 8.40% in 2021-22, counting authorised leave (Indian Labour Statistics 2022-23, Table 6.1(b), p. 162). On an assumed 312-day working year, that is about 26 days away for an average worker.
- People also leave. The all-India separation rate for the same workers was 11.88% in 2021-22, per the same Labour Bureau publication (Table 6.4(b), p. 170). In a 400-person plant, that is roughly 48 departures a year.
- Illustrative cost: about ₹1.6 lakh of lost contribution when one setter who serves six machines is away for a six-day week. Training a cover costs about a third of that in the first year, on our assumptions.
- Twenty minutes with the plant head is enough for a first draft. The fixes take months. Start with the three reddest rows.
Why owners underestimate key-person risk
Most owners know their key people by name, but rarely have the list of tasks only one person can do.
A senior setter may be covered on simple jobs and alone on two difficult parts. An accounts assistant may be the only one who raises one customer's e-way bills. The electrician may be the only one with the PLC password. None of this shows in an org chart.
The dependency shows only on the day he is absent, when machines are already waiting.
The official numbers say that day comes often. The Labour Bureau defines absenteeism as failure to report when scheduled, and counts authorised absence as absence (Indian Labour Statistics 2022-23, p. 158). The all-India rate in 2021-22 was 6.87%, and Maharashtra's was 8.71% (Table 6.1(b), p. 162).
Separations are not rare either. Separation, in the Labour Bureau's tables, covers quits, discharges, retirement, death and retrenchment. For directly employed regular workers, the 2021-22 separation rate was 9.08% in Haryana, 14.29% in Maharashtra and 15.69% in Gujarat (Table 6.4(b), p. 170).
Even at half these rates, a plant with ten single-person tasks should expect some to go uncovered for weeks every year.
The 20-minute key-person map
Sit with your plant head with one sheet or spreadsheet. Review the draft with the people on it later, and write roles, not names, wherever others will see it.
Minutes 0–5: list what the plant cannot run without
Write one row per task, not per person. Go through four groups, quickly:
- Machine set-ups and changeovers. Tool and die changes, moulds, jaws and fixtures, program proving, recipe and temperature settings, line setting for a new style.
- Critical equipment. The boiler, compressor, DG set, chiller, the one machine everything flows through, and anything that needs a licence or certificate to operate.
- Quality release. First-piece approval, batch release, the buyer's audit contact, customer-specific test methods.
- The office side that stops dispatch. E-way bills and invoices for key customers, the buyer's supplier portal, payroll, passwords for the PLC, ERP, NVR and router.
Aim for 15 to 30 rows. Fewer than ten usually means the office side is missing.
Minutes 5–12: three columns per row
For each task, fill in:
- Can do it alone: people who do the task to standard without help, on any shift.
- Can cover with help: people who have done it with someone beside them, or could do it with a written sheet.
- Time to train a cover: your plant head's honest estimate, in weeks, to get one more person from "with help" to "alone".
Also note which shifts each person works. A task covered by two people who both work the general shift is uncovered on the night shift.
Minutes 12–17: colour each row
Use these rules, and do not argue about edge cases in the first pass:
| Rating | Rule | What it means |
|---|---|---|
| Red | Zero or one person can do it alone, on any shift where the task occurs | One absence stops or degrades the task |
| Amber | Two people can do it alone, but on the same shift only, or the second needs help | One absence is survivable; two at once are not |
| Green | Two or more people can do it alone on every shift where it occurs | Routine absence is absorbed |
Add a second marker for time to train. A red row that takes two weeks to cover is an easy fix. A red row that takes six months to cover is the real risk, and it should be started first.
Minutes 17–20: pick three and name a deputy
Circle the three red rows where a day's absence costs most and training takes longest. For each, write one deputy and a date for the first paired job. That is the output: three tasks, three deputies, three dates.
A filled-in example map
This is an illustrative map for a 450-person auto-component and assembly plant. Roles are generic, the times are assumptions, and your rows will differ.
| Task (machine or process) | Can do alone (people, shifts) | Can cover with help | Time to train a cover (weeks, assumed) | Rating |
|---|---|---|---|---|
| Changeovers on six CNC turning centres | 1 (general shift only) | 2 senior operators | 12 | Red |
| Press tool change, 200 t press | 2 (A and B shifts) | 1 | 6 | Amber |
| Boiler operation | 2 certified attendants (all shifts) | 0 | Licence-dependent | Green |
| First-piece approval, key customer parts | 1 QC engineer | 1 inspector | 8 | Red |
| PLC fault-finding on the paint line | 1 electrician | 0 | 24 | Red |
| E-way bill and invoice for top customer | 1 accounts assistant | 1 | 2 | Red (quick fix) |
| Buyer supplier-portal login and schedules | 1 sales coordinator | 0 | 1 | Red (quick fix) |
| Assembly line feeding and kitting | 6 | many | 1 | Green |
Typically, several reds are off the shop floor and take a week to fix, while one or two, here the PLC and the CNC changeovers, take months and must start now.
What one week without the key person costs
Take the reddest row above: one setter who does all changeovers on six CNC turning centres, working the general shift. He is away for a six-day week, for a family wedding or illness.
Assumptions (replace with your own): the six machines run two 8-hour shifts. Without the setter, machines that finish a job cannot be changed over, so 35% of planned machine-hours are lost that week. Each machine-hour contributes ₹800 (revenue minus material and power), an assumed figure; take yours from your costing. Assume daily wages of ₹650 semi-skilled, ₹710 skilled and ₹750 highly skilled (₹16,900 and ₹18,460 a month for the first two, over 26 days; illustrative). Take the current notification for your trade and zone from your state labour department (Haryana Labour Department).
| Line item | Calculation | Figure (₹) |
|---|---|---|
| Planned machine-hours in the week | 6 machines × 2 shifts × 8 h × 6 days | 576 h |
| Machine-hours lost waiting for set-ups (assumed 35%) | 576 × 0.35 | ~202 h |
| Lost contribution (assumed ₹800 per machine-hour) | 202 × ₹800 | ~₹1,61,600 |
| Operator wages paid during those idle hours (one operator per machine, assumed) | 202 h × (₹650 ÷ 8) | ~₹16,400 |
| The setter's own minimum pay for the same week | 6 × ₹750 | ~₹4,500 |
That gap is the point: a pay floor of about ₹4,500 for the week against a loss of about ₹1.6 lakh. Most setters earn well above the minimum, but the ratio barely changes.
Overtime recovery is not free. Overtime needs the worker's consent and is paid at twice the ordinary rate of wages (basic plus DA) under OSH Code, 2020, s.27; your state's rules set the overtime ceiling. Recovering half the lost hours with operator overtime costs about ₹16,400 at twice the assumed semi-skilled rate, and needs free capacity a busy plant may lack.
Now the frequency. If this setter is away at Haryana's 2021-22 average absenteeism rate of 8.40%, that is about 26 days a year, or more than four such weeks. On our assumptions, that is roughly ₹7 lakh a year of lost contribution, from a single red row; planned leave can be prepared for, so treat it as an upper bound.
What it costs to turn a red row amber
Compare one cover, on the same assumptions:
| Line item | Calculation | Figure (₹) |
|---|---|---|
| Setter's time coaching the deputy (assume 1 h a day, 12 weeks) | 72 days × (₹750 ÷ 8) | ~₹6,800 |
| Deputy's uplift from semi-skilled to skilled grade, 12 months | 12 × (₹18,460 − ₹16,900) | ~₹18,700 |
| Slower changeovers while the deputy learns (assume 10 machine-hours a month for 3 months) | 30 h × ₹800 | ₹24,000 |
| First-year cost of one cover | ~₹49,500 |
One cover costs less than a third of one bad week. The setter stays as valuable; the plant just stops depending on his calendar.
For CNC roles there is a ready national syllabus. The CNC Operator–VMC qualification (CSC/Q0116, NSQF Level 4, approved 8 May 2025) covers vertical machining centres and has a full unit called "Set the CNC VMC for operations" (CGSSC qualification pack). Its set-up unit is a usable template for a turning-centre deputy's sign-off sheet. One of its entry routes is Class 10 with three years of relevant experience, which many of your senior operators already have.
Sign the deputy off one job family at a time, starting with the most frequent changeovers, rather than on the whole role at once.
Run the map again every quarter
A key-person map goes stale fast. Redo it every quarter, and once more before your festival peak, when absence clusters. The second time you are only changing colours.
Then share the final version with the people on it, as a coverage plan, not a ranking. A named deputy also lets key people take leave without the plant phoning them.
What cameras can and can't tell you here
A floor camera can show the effect of a red row: on the days a key person is away, which machines stood after finishing a job, how long changeovers took, and on which shift. Over a month, "the plant suffers when he is on leave" becomes machine-hours.
There are clear limits:
- It can't see skill. A camera cannot tell who knows how to set a machine, who holds a licence, or who knows the buyer's portal. Only the map and a conversation can.
- It can't see the office side. A late e-way bill or a forgotten portal login does not show on a shop-floor camera.
- It must not watch individuals. The useful measure is machines waiting, counted across a shift, never a stopwatch on a named person. Footage of recognisable workers is personal data under s.2(t) of the DPDP Act, 2023; tell workers in writing what is recorded and why (see the worker CCTV notice under DPDP).
Where Mama fits
Mama reads a factory's existing cameras, or a few added where there are none. Every morning it sends the owner a short plain-language note on where machine-hours went yesterday, including machines that stood waiting for a changeover. Over weeks, that shows which red rows on the map cost the most. Mama watches machines and flows and counts people only in aggregate, so it never names or ranks anyone. To see what that would look like on your floor, leave an email or phone in the form below.
FAQ
What is a key-person map in a factory? It is a one-page list of the tasks the plant cannot run without, with who can do each one alone, who can cover, and how long it takes to train a cover. Rows with one capable person are red.
How is it different from a skill matrix? A skill matrix lists every operator against every station. A key-person map lists only the tasks that stop the plant, including office tasks such as e-way bills and passwords, and ranks them by risk and training time.
How often are workers absent in Indian factories? Per the Labour Bureau's Indian Labour Statistics 2022-23, absenteeism among directly employed regular workers was 6.87% all-India in 2021-22, counting authorised absence. That is about 21 days a year on an assumed 312-day working year.
What should I do first with a red row? Name one deputy and a date for the first paired job. Start with the red rows that take longest to train, because those are the ones you cannot fix in a hurry.
Will my key people feel threatened by this? Some may at first. Credit them for training the deputy and keep the map about tasks.