I was wondering, is there any conventional naming that Camunda uses? Examples would be definition keys (or ID) for Tasks or Processes. What do you recommend as the best practice?
There are naming conventions we suggest for building modeles Camunda Best Practices - Naming BPMN Elements
When it comes to giving names to technical attributes there are maybe some preferences but not best practices. The only advice i would give you is to make a choice on your naming convention, document it and stick to it. Because even the worst naming convention isn’t too bad as long as its consistent across projects.