Set-up and System Maintenance for Task
The idea behind user centred design is that the iterative process goes on, for as long as the product lives. That being said, the process slows down somewhat once an initial product is reached, the users will continue to be involved in the process of evolving and correcting the software to better fit their needs and adapt to new tasks when these arise.
Summary of system architecture
evaluate<-->evolve
List of software components
N/A