形式概念分析（Formal concept analysis,FCA）与粗糙集理论（Rough set theory,RS）为数据分析提供了互补的方法。三支概念分析（Three-way concept analysis, 3WCA）是概念认知的一种新思想。本项目拟讨论：（1）提出3WCA的无点化形式，进而完善3WCA及相似概念的相关理论等；（2）建立完备格上的RS，这种RS最好能跟现有的某种完备的完全分配格（CCD格）上的RS相容或可比；（3）研究偏序集、模糊完备格和模糊偏序集上的FCA与3WCA等。（4）讨论同一序结构中各个理论之间的关系，并体现在应用中。.上述内容并非是已有理论的简单推广，序结构中的无点化特点在处理过程中即是优点，又是难点。本项目的研究将进一步拓展3WCA，FCA与RS的应用领域，为更多的信息科学和认知科学提供新的科学逻辑和研究方法，为智能信息提供有效的处理技术。

Formal concept analysis （FCA）and rough set theory（RS）provide complementary methods for data analysis. Three-way concept analysis (3WCA) is a new idea of concept cognition. This project will launch the research from the following four aspects: (1) Put forward the non-point form of 3WCA, and perfect the related theories of 3WCA; (2) Establish RS on complete lattices, it is expected to be preferably compatible or comparable with some existing RS on complete completely distributive lattices (CCD lattices); (3) Study FCA and 3WCA on posets, fuzzy complete lattices and fuzzy posets, etc. (4) Discuss the relations among the different theories in the same order structure, and make a combined study, which will be reflected in the practical application. .The above content is not a simple extension of the existing theory, the non-point feature in the order structure is both an advantage and a difficulty in the process of processing. These works will further expand the application field of FCA, 3WCA and RS, provide new scientific logic and research methods for more information science and cognitive science, provide effective processing technology for intelligent information.