Unary operations with Knowledge Units

The term “Knowledge Unit” is being used in more branches of sciences dealing with knowledge such as knowledge management, knowledge engineering, but also in education and pedagogical sciences. Unfortunately, no generally accepted definition of this term has already been established. In our previous work, we defined the Knowledge Unit and its standard structure based on systems approach. The objective of the paper is to suggest such operations, which allow to the users with different initial knowledge work with these knowledge units. For this purpose, we arise from a formal definition of the knowledge unit and then we suggest unary operations for these units in order the users are able to change their level of detail. All operations will be demonstrated on illustrative examples.