The SMCR model of communication describes the key elements in the communication process as the source, message, channel, and receiver. The source encodes the message and considers their attitudes, knowledge, and social system/culture. The message contains the content, elements like language, and how it is conveyed. The channel refers to the sensory method of hearing, seeing, touching, smelling, or tasting used to transmit the message. Finally, the receiver decodes the message and must be on the same level as the source for effective communication.