Abstract: To solve the problem that enterprises often come across conflicts in different kinds of requirements,a method to solve the conflict detection problem of business architecture requirements based on Semantics is proposed．First,this paper discusses the concepts of enterprise architecture and business architecture．Second,the definition and influence of conflicts of business architecture requirements are discussed．Then,a detection method on conflicts of project grouping is put forward based on conventional Semantic Model in the perspective of business architecture．Besides that,a case study is set to verify the feasibility of the method．Finally,the TOGAF requirements and their conflict detection method are discussed.

Key words: Project group,Requirements conflict,Semantics model,Enterprise architecture,Business architecture,TOGAF