I’m still new to Daml and have only built small toy apps. I’ve been reviewing other apps and noticed on occasion people creating templates with lists of Parties, like this:
template Asset with owner : Party description : Optional Text observers : [Party]
My understanding of Party types in Daml is that a Party is a role that can represent an individual account, a group, or even a group of groups depending on the identity management system (IMS) and how the IMS maps to Party assignments. It seems to me that having the observers set as a list of Parties makes working with observers needlessly complex. Obviously you can do it and the Daml compiler/linter doesn’t restrict assignments that are a list of parties, but I wonder if this is a good or bad practice?
As a best practice should parties be managed by the identity management system exclusively and thereby (almost) always singular? Or, is this a fine practice and assigning observers to a list of parties is reasonable if needed?