Accessuum

Accessuum is a conceptual framework and proposed standard for universal access governance across digital environments. It aims to provide a coherent model for requesting, validating, and enforcing permissions that span cloud services, on-premises systems, devices, and APIs. The objective is to achieve consistent policy enforcement independent of vendor, protocol, or layer in the stack.

Key ideas include policy-based access control, identity federation, and context-aware decision making. A policy engine evaluates attributes from identity providers, resource metadata, and situational signals to render permit or deny decisions. These decisions may be cached or distributed to enforcement points to support scalable authorization across many resources.

Typical architecture includes an attribute source, a policy language, a decision service, enforcement points at resources, and an audit/log subsystem. Interoperability is pursued through standardized interfaces and common data models so that policies apply across diverse environments.

Use cases span enterprise cloud governance, cross-system data sharing, and secure Internet of Things interactions, where uniform policies help reduce misconfigurations and policy drift.

Limitations include design complexity, potential performance impact, and privacy concerns related to attribute collection and cross-domain policy enforcement. Adoption discussions emphasize governance, transparency, and clear privacy protections, as well as the need for community-driven standards.

Related concepts include attribute-based access control (ABAC), role-based access control (RBAC), OIDC and SAML identity federations, and zero-trust architectures.