input is something you require to have before making the products,
In this case, it could be: Capital, Knowledge about bands, Time, Musical instruments, Finding the musician, etc
Conversion is the process of transforming that input into output,
In this case, it could be: Training, Discussing songs, rehearsals, inspecting the location, etc
Output is the end result after the conversion is finished
In this case, it will be: The summer band camp