R

RAM (random-access memory): Temporary storage built into a computer system that functions as a "workspace" for data and program instructions.

Raster graphic: A computer image made up of a collection of dots. Can become ragged or otherwise distorted when the image is enlarged or shrunk. See also vector graphic.

Real-time communication: Communication in which information is received at (or nearly at) the instant it's sent. Real-time communication is a characteristic of synchronous learning.

Receive site: A location that can receive transmissions from another site for distance learning.

Repurpose: To reuse content by revising or restructuring it for a different purpose than it was originally intended or in a different way.

Resolution: The clarity of the image on the video display screen.

Reusable: E-learning content that can be transferred to various infrastructures or delivery mechanisms, usually without changes.

RFID (radio frequency identification): A wireless information-transmission technology set to take the place of bar codes. A tag is placed on the object and then read by an antenna and transceiver. The object does not need to be in the same line of sight as the transceiver, as products with bar codes do, and the transceiver can function over greater distances than bar code readers.

RFP (request for proposal): A document produced by a company seeking goods or services and distributed to prospective suppliers. Suppliers then provide proposals based on the criteria specified within the RFP.

RIO (reusable information object): A collection of content, practice, and assessment items assembled around a single learning objective. RIOs are built from templates based on whether the goal is to communicate a concept, fact, process, principle, or procedure. (Pronounced "REE-O")

RLO (reusable learning object): A collection of RIOs, overview, summary, and assessments that supports a specific learning objective. (Pronounced "R-L-O")

ROI (return on investment): Generally, a ratio of the benefit or profit received from a given investment to the cost of the investment itself. In e-learning, ROI is most often calculated by comparing the tangible results of training (for example, an increase in units produced or a decrease in error rate) to the cost of providing the training.

Role play: (noun) A training technique in which learners act out characters in order to try out behaviors, practice interactions, communicate for a desired outcome, and/or solve a dynamic problem. Role plays can reinforce learning and help people apply new information, skills, and techniques. (verb) To participate in a role play.