||Can anyone shed some light on the differences in these levels of ArcGIS Server? I have seen the functionality matrix at http://www.esri.com/software/arcgis/arcgisserver/key_features.html, but this doesn't really help me much as a developer. This link suggests the only differences between the 2 are the additional extensions (3D Analyst, Geostatistical Analyst, Network Analyst, and Spatial Analyst) and the mobile sdk.
Is there a difference in libraries installed. For example, with Advanced, all fine grained ArcObjects libraries accessible, with Standard, only ADF libraries? Is the the correct way to compare them? How do I know, as I developer, I am building an application that will run with a Standard license? Are there any differences in the geoprocessing tools allow between levels?
In addition, what is the best practice when developing application targeted for ArcGIS Server Standard installation when working with an EDN license? I don't see separate installation disks. Do I install this one installation and switch licenses as needed using the post install?