• Communication is the exchange of thoughts, messages, or information, as by speech, signals, writing, or behavior. Derived from the Latin word "communis", meaning to share. Communication requires a sender, a message, and a recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast distances in time and space. Communication requires that the communicating parties share an area of communicative commonality. The communication process is complete once the receiver has understood the message of the sender. Feedback is critical to effective communication between participants.
  • Message is an object of communication. It is a vessel which provides information. Yet, it can also be this information. Therefore, its meaning is dependent upon the context in which it is used; the term may apply to both the information and its form. A communiqué (is a brief report or statement released by a public agency.
  • Information, in its most restricted technical sense, is a sequence of symbols that can be interpreted as a message. Information can be recorded as signs, or transmitted as signals. Information is any kind of event that affects the state of a dynamic system. Conceptually information is the message (utterance or expression) being conveyed. This concept has numerous other meanings in different contexts. Moreover, the concept of information is closely related to notions of constraint, communication, control, data, form, instruction, knowledge,meaning, mental stimulus, pattern, perception, representation, and especially entropy.
  • Human communication. Human spoken and pictoral languages can be described as a system of symbols (sometimes known as lexemes) and the grammars (rules) by which the symbols are manipulated. The word "language" also refers to common properties of languages. Language learning normally occurs most intensively during human childhood. Most of the thousands of human languages use patterns of sound or gesture for symbols which enable communication with others around them. Languages seem to share certain properties although many of these include exceptions. There is no defined line between a language and a dialect. Constructed languages such as Esperanto, programming languages, and various mathematical formalisms are not necessarily restricted to the properties shared by human languages. Communication is the flow or exchange of information within people or group of people.A variety of verbal and non-verbal means of communicating exists such as body language, eye contact, sign language, paralanguage, haptic communication, chronemics, and media such as pictures, graphics, sound, and writing.Manipulative Communications was studied and reported by Bryenton in 2011. These are intentional and unintentional ways of manipulating words, gestures, etc. to "get what we want", by demeaning, discounting, attacking or ignoring instead of respectful interaction. Sarcasm, criticism, rudeness and swearing are examples.Convention on the Rights of Persons with Disabilities also defines the communication to include the display of text, Braille, tactile communication, large print, accessible multimedia, as well as written and plain language, human reader, and accessible information and communication technology.
  • Nonverbal communication describes the process of conveying meaning in the form of non-word messages. Research shows that the majority of our communication is non verbal, also known as body language. Some of non verbal communication includes chronemics, haptics, gesture, body language or posture; facial expression and eye contact, object communication such as clothing, hairstyles, architecture, symbols infographics, and tone of voice as well as through an aggregate of the above. Speech also contains nonverbal elements known as paralanguage. These include voice lesson quality, emotion and speaking style as well as prosodic features such as rhythm,intonation and stress. Likewise, written texts include nonverbal elements such as handwriting style, spatial arrangement of words and the use of emoticons to convey emotional expressions in pictorial form.
  • Oral communication, while primarily referring to spoken verbal communication, can also employ visual aids and non-verbal elements to support the conveyance of meaning. Oral communication includes speeches, presentations, discussions, and aspects of interpersonal communication. As a type of face-to-face communication, body language and choice tonality play a significant role, and may have a greater impact upon the listener than informational content. This type of communication also garners immediate feedback.

  • Written communication Over time the forms of and ideas about communication have evolved through progression of technology. Advances include communications psychology and media psychology; an emerging field of study. Researchers divide the progression of written communication into three revolutionary stages called "Information Communication Revolutions". During the first stage, written communication first emerged through the use of pictographs. The pictograms were made in stone, hence written communication was not yet mobile. During the second stage, writing began to appear on paper, papyrus, clay, wax, etc. Common alphabets were introduced and allowed for the uniformity of language across large distances. A leap in technology occurred when the Gutenberg printing-press was invented in the 15th century. The third stage is characterised by the transfer of information through controlled waves and electronic signals. Communication is thus a process by which meaning is assigned and conveyed in an attempt to create shared understanding. This process, which requires a vast repertoire of skills in interpersonal processing, listening, observing, speaking, questioning, analyzing, gestures, and evaluating enables collaboration and cooperation.

  • Barriers to effective human communication. Communication is the key factor in the success of any organization. When it comes to effective communication, there are certain barriers that every organization faces. People often feel that communication is as easy and simple as it sounds. No doubt, but what makes it complex, difficult and frustrating are the barriers that come in its way. Some of these barriers are mentioned below. Barriers to successful communication include message overload (when a person receives too many messages at the same time), and message complexity.

    1.     Physical barriers: Physical barriers are often due to the nature of the environment. Thus, for example, the natural barrier which exists, if staff are located in different buildings or on different sites. Likewise, poor or outdated equipment, particularly the failure of management to introduce new technology, may also cause problems. Staff shortages are another factor which frequently causes communication difficulties for an organization. Whilst distractions like background noise, poor lighting or an environment which is too hot or cold can all affect people's morale and concentration, which in turn interfere with effective communication.

    2.     System design: System design faults refer to problems with the structures or systems in place in an organization. Examples might include an organizational structure which is unclear and therefore makes it confusing to know who to communicate with. Other examples could be inefficient or inappropriate information systems, a lack of supervision or training, and a lack of clarity in roles and responsibilities which can lead to staff being uncertain about what is expected of them.

    3.     Attitudinal barriers: Attitudinal barriers come about as a result of problems with staff in an organization. These may be brought about, for example, by such factors as poor management, lack of consultation with employees, personality conflicts which can result in people delaying or refusing to communicate, the personal attitudes of individual employees which may be due to lack of motivation or dissatisfaction at work, brought about by insufficient training to enable them to carry out particular tasks, or just resistance to change due to entrenched attitudes and ideas.

    4.     Ambiguity of Words/Phrases: Words sounding the same but having different meaning can convey a different meaning altogether. Hence the communicator must ensure that the receiver receives the same meaning. It would be better if such words can be avoided by using alternatives.

    5.     Individual linguistic ability is also important. The use of difficult or inappropriate words in communication can prevent people from understanding the message. Poorly explained or misunderstood messages can also result in confusion. Interestingly, however, research in communication has shown that confusion can lend legitimacy to research when persuasion fails.

    6.     Physiological barriers: may result from individuals' personal discomfort, caused—for example—by ill health, poor eyesight or hearing difficulties.

                    7.     Presentation of information: is also important to aid understanding. Simply put, the communicator must consider the audience before making the presentation itself and in cases where it is not      possible the presenter can at least try to simplify his/her vocabulary so that majority can understand

  •  Nonhuman communication. Every information exchange between living organisms — i.e. transmission of signals that involve a living sender and receiver can be considered a form of communication; and even primitive creatures such as corals are competent to communicate. Nonhuman communication also include cell signaling, cellular communication, and chemical transmissions between primitive organisms like bacteria and within the plant and fungal kingdoms.



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