Visual Design Tools for XTT-based Rulebases∗
نویسنده
چکیده
XTT is a hybrid design method for rulebased expert systems, combining decision trees and tables. The XTT method provides means for logical formulation of a hierarchical rulebase with explicit inference control. It also has a welldefined visual representation, which is useful in the design process. The paper presents new tools for the conceptual and logical design. The first tool is based is based on the popular Dia vector drawing application. The second tool is a custom visual editor, that supports the visual design during the logical phase. It allows for drawing XTT tables and defining the attribute values. The tool is based on the common object-oriented Qt library, available for multiple platforms. The tools have been developed by students in the Institute of Automatics for the HeKatE project. They can be considered a work in progress. The Hybrid Knowledge Engineering project aims at providing AI design tools for general software engineering.
منابع مشابه
XML - based Knowledge Translation Methods for XTT - based Expert Systems ∗
The paper discusses a concept of representing a rule-based knowledge base of an expert system with a hybrid method combining decision trees and tables. The XTT method provides means for logical formulation of a hierarchical rulebase with explicit inference control. It also has a well-defined visual representation, which is useful in the design process. On the machine readable level the XTT know...
متن کاملBusiness Rules Design and Refinement Using the XTT Approach
This paper discusses practical development of business rules (BR) systems. The main conceptual foundations of BR are discussed, and selected tools for BR design and implementation are described. An application of a rule-based systems design tool (Mirella Designer) for BR design is proposed. Business rules visual representation using XTT in Mirella Designer is both transparent and compact. The u...
متن کاملThe HeKatE methodology. Hybrid engineering of intelligent systems
This paper describes a new approach, the HeKatE methodology, to the design and development of complex rule-based systems for control and decision support. The main paradigm for rule representation, namely, eXtended Tabular Trees (XTT), ensures high density and transparency of visual knowledge representation. Contrary to traditional, flat rule-based systems, the XTT approach is focused on groups...
متن کاملMOF-based Metamodeling for the XTT Knowledge Representation
This paper concerns the metamodel of the XTT rule-based knowledge representation. XTT is a knowledge representation and design method which aims at combining decision trees and decision tables. As the pure XTT method required dedicated tools to design systems, the UML representation has been developed. The abstract syntax of UML is defined by the UML metamodel. This paper introduces the metamod...
متن کاملVisual Design and On-line Verification of Tabular Rule-Based
The paper is dedicated to presentation of a new approach to joint design and verification of rule-based systems. The principal idea is that verification should be performed on-line, incrementally, during system design. This allows for early detection and handling of knowledge base anomalies and inconsistencies. The proposed approach offers also an innovative visual tool for computer-aided desig...
متن کامل