title: Are web services processed sequentially or in parallel?
body: <p>I am just getting started in web services using Lotus Notes.   What I would like to be able to do is to create a web service that generates a sequential number.   The code to generate the number is based on existing code we have used for some time within our databases (just straight lotus script, no web services).   Basically there is a document that stores the next number, the next number is returned and is updated for the next call save conflicts are detected and the number is tried again if there was a issue saving the number. </p>
  
  <p>I thought I might use a web service for to generate the number.  So are web services processed sequentially or in parallel?   Because if they are serial then I won't need to deal with two people trying to save the number at the same time.</p>