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Legal texts are the foundational resource where to discover rules and norms that feed into different concrete (often XML-based) Web applications. Legislative documents provide general norms and specific procedural rules for eGovernment and eCommerce environments, while contracts specify the conditions of services and business rules (e.g. service level… (More)
In this paper we present the motivation, use cases, design principles, abstract syntax, and initial core of LegalRuleML. The LegalRuleML-core is sufficiently rich for expressing legal sources, time, defeasibility, and deontic operators. An example is provided. LegalRuleMLis compared to related work.
This paper proposes some variants of Temporal Defeasible Logic (TDL) to reason about normative modifications. These variants make it possible to differentiate cases in which, for example, modifications at some time change legal rules but their conclusions persist afterwards from cases where also their conclusions are blocked.
This paper proposes a framework based on Defeasible Logic (DL) to reason about normative modifications. We show how to express them in DL and how the logic deals with conflicts between temporalised normative modifications. Some comments will be given with regard to the phenomenon of retroactivity.
Italian Ministry of Justice, with the contributions of the researcher centres, universities and public bodies, are presently engaged in an effort to work out shared standards with which to represent legal texts. Documents standardised under uniform formats and structures make it possible to link up distinct bodies of norms, and this in turn makes it easier… (More)
The XML documents that represent legal resources contain information and legal knowledge that belong to many distinct conceptual layers. This paper shows how the Akoma Ntoso standard keeps these layers well separated while providing ontological structures on top of them. Additionally, this paper illustrates how Akoma Ntoso allows multiple interpretations ,… (More)