As an engineer, I recently encountered a case that made me think a lot.
A client sent me a picture of a small circuit board, hoping I could help him design it.
Upon initial observation, this is a relatively simple two-layer board, mainly implementing multi-channel amplification and comparison functions.
When I asked the client whether this design was for a commercial order or personal use, his answer surprised me—”Just for personal use, I only need one or two pieces.”
This response immediately triggered my thoughts: why would the client choose custom design instead of directly purchasing an off-the-shelf product?
The client explained that he couldn’t find an exactly matching product online; if he could buy a ready-made one, he wouldn’t have gone through the trouble of seeking customization.
This made me realize that the client’s needs indeed had a certain specificity—he required a customized solution with specific functions rather than a generic product.
I explained a practical issue to the client:
If you only need one or two boards, an off-the-shelf product might only cost a few dozen dollars; however, if you opt for a custom design, you need to account for design fees, board fabrication costs, assembly costs, and other development expenses, which will significantly increase the total cost. Only when there is a demand for mass production do these development costs seem negligible.
“If you have an order to produce, this cost is insignificant,” I told the client.
After hearing this, he sighed and accepted my advice.
Thus, I successfully “talked out” this client.
Afterward, I couldn’t help but ponder: was this the right thing to do?
From a professional perspective, I believe my judgment was correct.
Considering the actual cost-effectiveness for the client is the responsibility of an engineer.
However, from a service perspective, I worry whether I too easily gave up a potential opportunity.
In the engineering service field, we often face such choices: should we adhere to professional judgment and possibly lose a client, or should we take on a project that may not be beneficial for both parties for short-term gain?
I believe that sincerely analyzing the pros and cons for the client and helping them make the most reasonable choice is true professional service.
This case also reflects a reality in electronic product development: the cost-effectiveness issue of small-batch customization.
For engineers, how to balance professional judgment with commercial considerations is a topic we need to continuously reflect on.
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