关键词: 粒, 粒集, 粒范畴, 偏序关系, 构造, 粒计算

Abstract: This paper attempts to deal with model of Granular Computing theory. Starting with granular set, it defines the generalization-specialization relationship between the individual objects of a granule, the pan-inclusion relationship between the granules, and proves?that they are?the?partial ordering relation, and the granular set?with partial order relation is a category. Offering the pan-intersection operation?of the granular set, it further illustrates the construction method of?granular?category based on partial ordering relation. It also discusses some properties of the?granular?category. The research results show that the method is effective to construct the?granular?category, laying the foundation for the application of the?granular?category.

Key words: granule, granular set, granular category, partial ordering relation, construction, Granular Computing（GrC）