What are the basic communications model that most organizations use?

by Gina Tina on May 24, 2013

The Basic Communications Model

To send data over a distance, you must have a sender (the source), a communications medium(channel), and a receiver (the destination). In the case of human communications, the sender takes an idea, encodes it into speech, and transmits it over the air-medium channel. the receiver must receive the message, decode the words, and receive the original idea or information. Remembering our nemesis, there is an opportunity for noise to be introduced at each step of the communications process.

The basic communications model is a simple mode of moving data from one source to one or more destinations. The environment and model become more complicated but often more useful when we move to a data sharing model. This involves moving data back and forth or sharing the data simultaneously between two or more people or devices.

In order to communicate, we must consider the intent of the sender (what is being communicated); the encoding of the message (language, code etc.); the channel (the medium); the ability of the receiver to decode the message; and the way the receiver interprets the transmitted message. Human-to-human interaction is the concern of “simple communications.” For example, two people need to use the same spoken or written language and have a similar background of experiences and knowledge to interpret messages in a similar fashion. Additionally, each of the five processes contains noise in many forms. These noises range from incorrect language syntax (he ain’t gonna to do nothing), to the effect of “bad” telephone circuits, to loud background music.

Telecommunications versus Data Communications

Fortunately, in data communications, we are not usually as concerned with the intent of the message but in ensuring the message is accurate and complete. In other words, we generally are concerned that the proper characters were received exactly as sent and in the correct sequence. The receiving machine will be sensitive to any changes made in the data, but we people may not able to detect such changes.

Generally, telecommunications is the transfer of data over a distance via electrical, electromagnetic, or photonics means. Data communications is machine-to-machine communications.

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