Strengths are what make people tick: what they know and know how to do, and succeed at.
Job Instruction is what TWI developed as a teaching method in order to gather shop floors best practices and teach them to new hires in a most efficiency way.
There are two phases in JIT:
- Prepare the material, where the trainer go on the shop floor (or Gemba) and interviews the employees on what are the best ways to achieve some work, and how to best do it (safety, tricks, etc.)
- Deliver the material, where the trainer is encouraged to cut the work into suitable pieces so that the teaching can be done in 20-30 minutes at most.
The way JIT is built also is based on the best strengths of how people learn: small theoretical chunks followed by thorough practice and correction, before any bad habit have a chance of forming.
Also, JIT insists on the fact that the Job Breakdown Sheets are material for the trainer only, and not for the trainees. What to put inside relies on the strengths of the trainer, it’s not generic training material for all kind of trainees.
In the end, I find JIT to be a method to gather “technical” strengths of workers and transmit them around the shop floor for all to benefit.
Just ages before the strengths movement crystalized.