When you use a text template resource to reference a template, the template is read once by Template Engine when you start the StreamServer application. If you want to modify the template, you must edit the template resource, export the Design Center Project, deploy and restart the StreamServer application.
When you use a static file or http reference to a template, the template is read once by Template Engine when you start the StreamServer application. If you want to modify the template, you must edit the template file and restart the StreamServer application.
To be able to use this type of reference you must first create a StreamServe script variable that evaluates to a file or http reference, and then use this variable as reference in the Template Engine Process tool.
When you use a dynamic file or http reference to a template, the template is read by Template Engine during runtime. If you want to modify a template, you only have to edit the template file and do not need to restart the StreamServer application.