JSOM …… not JSON

Yet another acronym, Excel Services JavaScript Object Model. A new way to interact with Sharepoint Excel Services. A brand new feature in Excel Services in Sharepoint 2010, comes as the 4th way of communicating with Excel Services:

  • Excel Services Web Service API
  • Excel Services REST API
  • Excel Web Access web part.
  • JSOM

With JSOM, not only can you access the deployed excel in ECS, but also interact with it via JavaScript. For instance you may “attach” an event handler in a range change event on one EWA web part and change the excel in another EWA. Thus making interactive mash-ups with many EWA web parts a reality.

Have a look at a nice blog post of Joseph Chirilov here, and the technet post with the official definition here.