Fuzzy markup language : a XML based language for enabling full interoperability in fuzzy systems design

Historically, the theory of fuzzy logic has been strongly used for enabling designers of industrial controllers and intelligent decision making frameworks to model complex systems by expressing their expertise through simple linguistic rules. Nevertheless, the design activity of a fuzzy system may be affected by strong difficulties related to the implementation of a same system on different hardware architectures, each one characterized by a proper set of electrical/electronic/ programming constraints. These difficulties could become very critical when a fuzzy system needs to be deployed in distributed environments populated by a collection of interacting and heterogeneous hardware devices. Fuzzy Markup Language (FML) is a XML-based language whose main aim is to bridge the aforementioned implementation gaps by introducing an abstract and unified approach for designing fuzzy systems in hardware independent way. In details, FML is a novel specific-purpose computer language that defines a detailed structure of fuzzy control independent from its legacy representation and improve systems’ designers capabilities by providing them with a collection of facilities speeding up the whole development process of a centralized or distributed fuzzy system. This chapter is devoted to introduce FML details, an application sample, and it will provided some initial aspects about FML-II, a FML grammar extension aimed at modeling Type-II fuzzy systems