R
RAID - Redundant Array of Independent Disks (storage/backup technology which uses several physical disks to store and retrieve data)
RBAC - Role-Based Access Control (also known as Non-discretionary Access Control) (access control model in which a management central authority assigns access permissions based on the job or role the employee performs)
RFP - Request for Proposal (formal invitation to vendors to submit a proposal to provide solutions to a problem, in which they respond with their solution and often, estimated cost)
RHIO - Regional Health Information Organization (organizational network systems of hospitals and healthcare providers within a state or geographical region)
RIM - Records and Information Management (area of information systems (IS) dealing with the collection, organization, storage, and maintenance of records and data)
RIM - Reference Information Model (one of a family of interconnection standards relating to the exchange, integration, sharing, and retrieval of Electronic Health Information (EHI))
RMF - Risk Management Framework (organizational process used to identify and prioritize the risk of threats and to take steps to deal with, and control or minimize risk)
RN - Registered Nurse (a nurse who has graduated from a nursing program at a college or university and has passed a licensing exam to obtain a nursing license)
RPO - Recovery Point Objective (the maximum amount of data that can be lost for an organization, after which the business cannot recover or would suffer significant loss - put another way, the amount of lost data that needs to be recovered/restored in order to resume functional operations)
RSNA - Radiological Society of North America (organization of radiologists which deals with technological advances in radiology and patient treatment)
RTO - Recovery Time Objective (amount of time an organization can function without an application or process before its absence has a significant impact - sometimes referred to as Maximum Tolerable Downtime (MTD))
RuBAC - Rule-Based Access Control (discretionary access model that allows or restricts access based on parameters and properties not related to identity or function, such as IP (Internet Protocol) address, geographic location, or time of day)
RUG - Resource Utilization Groups (reimbursement classification system used in U.S. long-term care or skilled nursing facilities reimbursed by Medicare and Medicaid, for insurance billing purposes which reflect the resource needs and complexity of care)