Case 01
The tools had to leave the van that my prototype organised
In 2018 I approved a fixed-drawer prototype as the basis for our next mobile-workshop range. It made the vehicle interior orderly and gave each tool a place. A study of twelve adult service-business users then found seven carrying tools away from the van to the task, while five mainly worked beside the vehicle. The prototype served the storage location better than it served the whole working routine for the first group.
The development team wanted to retain the fixed arrangement and offer a separate loose tool bag. That would preserve the prototype investment and keep the range easy to explain. I understood the appeal, but the proposal still asked users to transfer tools between two arrangements because our product assumed the work stayed at the vehicle. I recommended revising the brief to support fixed and lift-out options, with the actual engineering, handling and installation conditions reviewed by qualified owners.
We committed ₹41 lakh to the revised product programme. The fixed path remained relevant to the five users whose work largely happened at the van; the seven observations informed a portable path rather than a conclusion that every customer wanted one. I accepted responsibility for approving the earlier brief before following the tools into the task. The response required more development and a more deliberate commercial choice than one neatly presented prototype.
The result was a changed product direction, not evidence that the redesigned range had already improved productivity or sales. The twelve-user study did not establish the proportions of demand across the whole market. We also did not treat a lift-out concept as automatic approval for carrying any load or installing it in any vehicle. Those questions remained part of the qualified product and application work rather than consequences inferred from the research finding.
I would now observe the transition between storage and use before deciding which activity the product should organise. A design can look successful when the demonstration begins and ends at its own boundary. The important question is what the customer must do immediately outside that boundary to make it useful. In this case, the cost of revising the brief was justified by a clear difference in working situations, while the commercial and technical results still required their own evidence. The lesson was to change the product question I had approved, not ask users to become better at fitting their work into it.