ArcGIS geoprocessing environment settings are set as follows, and are applied in the following order.
|order applied||set by||how||saved in||saved when||applies to|
|2||ArcMap||Geoprocessing→Environments...||map document (
||map is saved||all models and tools run by this map|
|3||ModelBuilder||right-click (model name)→Properties...→Environments||model||model is saved||all tools run by this model|
|4||ModelBuilder||right-click (model name)→Edit..., then
right-click (yellow process box)→Properties...→Environments
|model||model is saved||this tool only, run by this model|
NOTE: These environment settings behaviors are what we've observed—they're not fully and correctly documented in the ArcGIS online help.
Given how confusing this all is, we recommend: