Welcome to LPA
LPA provides a range of software development tools for both programmers and non-programmers who wish to deliver knowledge-based decision support and expert systems.
When I'm Sixty Four
Our existing Prolog system, based on Brian D Steel's classic "386-PROLOG" engine, continues to power the entire LPA software suite. This version runs on all versions of Windows since Win98SE, and even 32-bit extended MS-DOS, but now we have some very exciting news: Brian has completed work on a brand new, 64-bit version of the engine, which is being released to testers today! Please contact LPA if you would like to check the brand new X64-PROLOG system!
Announcing WIN-PROLOG 7.0 - X86 & X64
Today, 2nd November, 2018, LPA is proud to anounce the release of WIN-PROLOG 7.0, a major new version of the system. Established and proven for 29 years, this leading Prolog compiler for Windows provides a robust engine and dedicated development environment for AI applications.
But this time, there's more! This latest release is the first to be available in both the classic, 32-bit (X86) version, and in a brand new, 64-bit (X64) version. Both systems use exactly the same sets of predicates, and there is complete source code and compiled Prolog Object code compatibility between them. The big difference is that while the original X86 version is limited to accessing 2Gb maximum RAM, the new X64 has no limit on how much memory you can use. More detailed information on the X64 version will be follow shortly: please keep checking this website.
The WIN-PROLOG Free Trial and GDPR
Following the imposition of the new European data protection laws (GDPR), our standard 28-day Free Trial was suspended, because the existing scripts did not give users the chance to opt into subsequent mailings: they were simply added to a mailing list automatically. Until such time as we can change the scripts to comply with GDPR, please contact LPA directly if you wish to engage in a free trial of our software.
Weblog is the fresh, new toolkit which provides a direct, streamlined way of combining beautifully designed web pages with logical scripts written in Prolog.
Weblog separates the processes of website design and content programming, so that web pages can be created in familiar tools such as DreamWeaver, PhotoShop and Illustrator, independently of the application code which supports them.
VisiRule Business Rules
VisiRule is an intuitive graphical tool for non-technical business users to design and deliver rule-based expert applications, simply by drawing a flowchart that represents the business decision logic.
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