Final answer:
A collection of permissions granting access to different parts of a platform is known as a role-based access control system, designed to manage user's abilities securely and efficiently.
Step-by-step explanation:
A collection of permissions used to grant access to different parts of a platform is typically known as a role-based access control (RBAC) system or sometimes just an access control list (ACL). In computing, this system is crucial for defining users' and groups' abilities to perform tasks such as creating, viewing, or modifying files within the platform. For instance, an administrator might have permissions allowing them to configure systems, manage user accounts, and access all files. In contrast, a standard user might only have permissions to view and edit their own documents and settings. By assigning specific roles to users, organizations can control access more efficiently and securely, ensuring that individuals only have the permissions necessary to fulfill their roles.