issues . please help improve it or discuss these issues on the talk page . learn how and when to remove these template messages the topic of this article may not meet wikipedia s notability guidelines for companies and organizations . please help to establish notability by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond its mere trivial mention . if notability can not be established the article is likely to be merged redirected or deleted . find sources logic programming associates news newspapers books scholar jstor free images january 2012 learn how and when to remove this template message this article includes a list of references but its sources remain unclear because it has insufficient inline citations . please help to improve this article by introducing more precise citations . april 2013 learn how and when to remove this template message learn how and when to remove this template message logic programming associates ltd type private industry computer software founded 1981 headquarters london sw18 3sx area served uk united states emea products visirule flex expert system toolkit flint toolkit lpa prolog for windows website www.lpa.co.uk logic programming associates lpa is a company specializing in logic programming and artificial intelligence software . lpa was founded in 1980 and is widely known for its range of prolog compilers and more recently for visirule . lpa was established to exploit research at imperial college london into logic programming carried out under the supervision of prof robert kowalski . one of the first implementations made available by lpa was micro prolog 1 which ran on popular 8 bit home computers such as the sinclair spectrum 2 and apple ii . this was followed by micro prolog professional one of the first prolog implementations for ms dos . as well as continue with prolog compiler technology development lpa has a track record of creating innovative associated tools and products to address specific challenges and opportunities . in 1989 lpa developed the flex expert system toolkit which incorporated frame based reasoning with inheritance rule based programming and data driven procedures . flex has its own english like knowledge specification language ksl which means that knowledge and rules are defined in an easy to read and understand way . in 1992 lpa helped set up the prolog vendors group 3 a not for profit organization whose aim was to help promote prolog by making people aware of its usage in industry . in 2000 lpa helped set up business integrity now a leading supplier of document assembly and contract creation software solutons for the legal market . lpa s core product is lpa prolog for windows 4 a compiler and development system for the microsoft windows platform . the current lpa software range comprises an integrated ai toolset which covers various aspects of artificial intelligence including logic programming expert systems knowledge based systems data mining agents and case based reasoning etc. in 2004 lpa launched visirule 5 a graphical tool for developing knowledge based and decision support systems . visirule has been used in various sectors to build legal expert systems machine diagnostic programs medical and financial advice systems etc. customers edit for many years lpa has worked closely with valdis krebs an american latvian researcher author and consultant in the field of social and organizational network analysis . valdis is the founder and chief scientist of orgnet and the creator of the popular inflow 6 software package . external links edit lpa home page about lpa micro prolog in spanish aspects of prolog history visirule demos visirule a new graphical business rules tool from lpa a flex based expert system for sewage treatment works support esse an expert system for software evaluation references edit microcomputer prolog implementations pdf retrieved 2013 04 29 micro prolog for sinclair spectrum retrieved 2013 04 29 prolog vendors group launched pdf retrieved 2013 04 29 lpa prolog for windows retrieved 2013 04 29 lpa visirule retrieved 2013 04 29 inflow this artificial intelligence related article is a stub . you can help wikipedia by expanding it . v t e retrieved from https en.wikipedia.org w index.php title logic programming associates & oldid 736093565 categories information technology organisationssoftware companies of the united kingdomexpert systemsknowledge engineeringknowledge representationartificial intelligence stubshidden categories articles with topics of unclear notability from january 2012all articles with topics of unclear notabilityarticles lacking in text citations from april 2013all articles lacking in text citationspages using infobox company with unsupported parametersall stub articles navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search 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