Activity diagram of a typical nail clipper
This is an example of how we an do an activity diagram of a product - a nail clipper.
We determined our start and end points to be "Purchase" and "Throw away".
We can purchase a nail clipper and pass it to a user to use it, observing how he uses it. We identify the main activities involved in using the nail clipper and illustrate it with the activity diagram. This helps bring us clarity as to how the nail clipper is currently used. This can help inspire us to find opportunities to improve the nail clipper. For example,
Give it a shot. Studying the activity diagram, what other opportunities can you find to improve the nail clipper?