Hi
Project Professional is used for creating and editing schedules exactly as
it would if it was not connecting to the Project Server
The difference is that it can store the projects in a centrally managed
respository amongst other enterprise benefits
The Project Web Access client is a low cost interactive reporting tool.
Depending on the permissions of the user they can view portfolios of projects
& resources, a team member can recieve and submit progress on assignments
The Project Web Access client can not be used to directly add or edit tasks
and schedules. It should be noted that many areas of a project can be edited
such as building the team and editing a project's profile e.g. which
programme does the project belong to, who is the sponsor etc.
I hope this sheds some light on Project Professional & Project Web Access
working with the Project Server
--
Regards
Chris Marriott - PMP MCSE MCDBA
UK - EPM Consultant & Trainer