If you’re new to DAML make sure to check out @drsk’s great tutorial on the fundamental concepts of DAML and learn about parties, observers, signatories and controllers. Take the course to learn about some of the similarities between UNIX file permission system and DAML:
Exactly as the UNIX file system, DAML has a concept of identities. In DAML they are called
parties. And exactly as the UNIX file permissions, with DAML you set permissions on each contract corresponding toread,writeandexecuterights.