Most workshops do not lose time to one big disaster. They lose it to five small problems that repeat every single day. Individually each looks harmless. Added up over a year, they are the difference between a workshop that scales and one that stays stuck. I have hands-on experience building the systems that remove them for manufacturers in Germany — here is where the time really goes.
It is rarely skill that is missing — it is the system
Classic management theory splits a business into its factors of production — labour, equipment and materials — plus a fourth:
- Labour
- Equipment
- Materials
- Management, planning and organization
That fourth one is the leading factor. In plain terms: a workshop rarely grows by adding another machine or another pair of hands. It grows when the planning and information layer on top gets stronger. Every bottleneck below is a hole in that layer.
1. Manual order intake
Quotes and orders are re-typed by hand, moving through the same information three times:
- Spreadsheet
- Production
Every re-entry is a chance for a wrong quantity, price or spec. This is pure data work — the cheapest thing in the world to automate — and the first place errors turn into scrapped material and angry customers.
2. Material planning from memory
Requirement planning has a clear method. You either calculate exactly what you need from the bill of materials (BOM), or you forecast from past demand. How much to order each time has an optimum — the economic order quantity (EOQ) — which balances ordering cost against holding cost. When to order is the reorder point. Do this by memory and you swing between tying up cash in overstock and stopping the line because a part ran out. A system does the arithmetic for you.
3. No real job status
Where is order #204 right now? If the only honest answer lives in someone's head or on a paper traveller on the floor, you do not have production control. Production planning has three layers:
- What to make
- How
- In what sequence
None of them works if the current state is invisible. This is the bottleneck that quietly eats delivery dates.
4. Quality checks logged too late
Defects found after shipping are the most expensive kind. A check recorded days later, or not at all, means you learn about a problem from the customer instead of from the shop floor. Catching it one station earlier is almost free; catching it in Germany is not.
5. Invoicing lag
Goods are delivered but the invoice goes out days or weeks later. Every day of lag is a day added straight onto your liquidity gap — the cash-flow trap I wrote about separately. Slow invoicing is slow cash, and slow cash is what actually kills profitable workshops.
Where to start
Do not try to fix all five at once. Start with the two that touch cash directly: order intake and invoicing. Automating those two usually pays for the entire effort within a few months, and buys you the breathing room to fix the rest. Strengthen the planning layer first where it protects your money — the machines and the craft you already have.
Nguyễn Hải Minh
I build custom software and data solutions for manufacturing ERP systems, including INFOR, for clients in Germany. As a Staatlich geprüfter IT-Techniker (Fachrichtung Informatik) and Informationselektroniker, I combine deep technical skill with business-systems thinking to help manufacturers automate operations and optimize cross-border import and export.
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