The report concerns the UML representation for XTT and ARD Rule Design Methods. In the report an overview of the Software and Knowledge Engineering background is given and the HeKatE methodology is explained. Furthermore, the UML representation for XTT and ARD representation is introduced and the metamodel for this representation is discussed. The translation between UML models, serialized to X...

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...

In the paper practical issues concerning the use of UML as a knowledge representation method for rules are discussed. A proposal of an UML-based representation for the XTT structured representation for rules is presented. Since some deep semantical di erences between UML and rule-based representation exist, several possible UML representations are evaluated. A practical algorithm for building a...

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...

This paper discusses practical aspects of building an extensible design environment for XTT rule bases. The environment allows for an integration of number of services. These services include the formal verification framework, as well as a logic server that runs the designed XTT rules. In the paper the architecture of the services is discussed. Main integration issues are presented, and the com...

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 bas...

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...

It has been postulated that androgen overexposure in a susceptible person leads to excessive brain masculinization and the autism spectrum disorder (ASD) phenotype. In this study, the responses to estradiol (E2), dihydrotestosterone (DHT), and dichlorodiphenyldichloroethylene (DDE) on B-lymphocytes from ASD subjects and controls are compared. B cells were obtained from 11 ASD subjects, their un...