Abstract
In this chapter, we discuss the concept of information granulation and degranulation as one of the fundamental computing paradigms of Granular Computing supporting interaction with real-world environment. In the setting of fuzzy sets, the wording fuzzification-defuzzification is commonly used. The related terms concern encoding-decoding and this terminology is used in data compression. We elaborate on the underlying concept, discuss algorithms of granulation and degranulation along with their propose a way of evaluating the quality of this transformation. Several design alternatives are discussed.
