"It begins when the customer becomes aware of the possibility to evolve"

"a JTBD describes how a customer changes or wishes to change. With this in mind, we define a JTBD as follows:
A Job to be Done is the process a consumer goes through whenever she evolves herself through searching for, buying, and using a product.
It begins when the customer becomes aware of the possibility to evolve.
It continues as along as the desired progress is sought.
It ends when the consumer realizes new capabilities and behaves differently, or abandons the idea of evolving.
...
A consumer goes along his life as he’s come to know it. Then things change. He is presented with an opportunity for self-betterment — that is, make changes so he can grow. When or if he finds a product that helps him realize that growth opportunity, he can evolve to that better version of himself he had imagined."

Trechos retirados de "What is Customer Jobs? What is a Job to be Done (JTBD)?"