AustLII's DataLex Developer's Manual (1st Edition, June 2019)
73 Pages Posted: 26 Jun 2019 Last revised: 16 Aug 2019
Date Written: June 23, 2019
This Manual is the complete instructions for the use of writing and utilising knowledge-bases using AustLII’s DataLex software. It is intended principally for the coding of legal rules and/or business rules. DataLex uses an English-like knowledge representation to code rules and other constructs. It is based primarily on propositional logic, with the addition of some features similar to first order predicate logic, and others which allow a form of case-based (or example-based) reasoning.
The Manual covers the following topics:
• DataLex legal knowledge-base systems;
• Rule-based inferencing
(I): Knowledge-bases and rules;
(II): Descriptors, keywords and expressions;
(III): Rule types, statements and evaluation order;
• Integration of DataLex knowledge-bases with AustLII and other LIIs;
• Document assembly using DataLex;
• Case-based (example-based) inferencing using DataLex;
• DataLex user interface manual.
Knowledge-bases (KBs) created with the DataLex software are intended to run in the AustLII Communities environment (the DataLex Community), and to interact with databases on the Australasian Legal Information Institute (AustLII) or other legal information institutes. A publicly accessible DataLex KB Development Tools page allows anyone to develop and test DataLex applications. Access details for the DataLex Community and the KB Development Tools are provided in the Manual, with tutorial instructions for their use.
Keywords: AustLII, DataLex, expert systems, AI, artificial intelligence, rule-based reasoning, coding legal rules, coding business rules, SBVR
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