XACML

In a complex environment, the management of user access to databases and other network resources can become a daunting task. Users are dynamic, with changing privileges, and role based access controls (RBAC) are a powerful way to both organize permissions into groups, and therefore ease user administration. Importantly, technical employees such as database administrators, are then able to dedicate more time to troubleshooting security issues and organizing the system than to micromanaging the access privileges of many individual users What is Role Based Access Controls? Role-based access control (RBAC) is an approach to managing entitlements, intended to reduce the cost of security administration, ensure that users have only appropriate entitlements and to terminate no-longer-needed entitlements reliably and promptly. In the context of a single system or application, RBAC means granting privileges directly to roles and attaching users to roles. Users acquire privileges through role membership, rather than directly. Within a single system, roles are sometimes called security groups or user groups. Single-system RBAC is a time tested and successful strategy, as it allows administrators to group users, group privileges and attach groups of privileges to groups of users, rather than attaching individual privileges to individual users. Identity and access management (IAM) systems extend RBAC beyond single applications. Roles in an IAM system are sets of entitlements that may span…