July 16th, 2009 The Pro Shop that I developed at Computa Services for the Carnoustie Golf Links, is now live.
It uses concurrent AJAX, calling a lightweight PHP+XML web service layer to communicate with a Microsoft SQL Server.
The management application that the staff at the Links use to administer the bookings is written in C#, using C# web services back to the SQL Server.
Like the online booking, the AJAX layer is based on "The Ultimate AJAX object" by Patrick Hunlock, which I’ve found to be one of the only objects that elegantly supports concurrency.