The graduated processing model of the data-information-knowledge chain refines information in search of greater relevance at each stage.
Information is the granulation of knowledge.
This is accomplished by placing data in context such that human beings can create information and give it meaning, and thus develop knowledge. The abundance of data does not always lead to better understanding if there is not a synthesis that gives the information a new layer of added value at each stage.
Knowledge is acquired through experience,
everything else is just information.
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The rules of information
- It decreases greatly depending on the time that the decision maker is willing to pay to own it.
- It increases greatly according to completeness, and particularly its precision.
- It grows according to its influence on good decision making.
- Knowledge increases when shared.
- The process is refined by filtering, which gives rise to comments or consensus.
- At the end of the process, consensus appears in the form of opinions. The opinions will throw their weight onto decisions about what actions to take.
The rules of opinion
- The context (visual and cultural systems, etc.) often changes the process.
- The judgment of the user is compared to the value added.
- An opinion cannot be demolished only by discussion because of the symbolic value it carries.
- A message seeking to change an opinion should at least have the same intensity and the same value in terms of symbols-images.
The opinion is a fourth power.
(Many believe that it is rather the fifth power, the fourth being mass media; the first three are legislative, executive and judicial).
The weight of opinion :