Tag, tagging and information can be evaluated by tagged structure

The tag is searching key. And it can have meaning.

In SRNStag administration is dominant ownership. And this administrative can distribute.
To use for keys, tag and tagged target must have a relation. This relation has a condition. For example, the condition is used for expressing priority.

The evaluation can be expressed by these tagged structures,
We can build structures with group knowledge, it comes from distributed ownership for the tags.

 The owner can express how owner feeling with tagging.