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Requirements Management

The World's Best Requirements Modelling Language
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Website devoted to everything requirements modelling, particularly PSL/PSA ...

This website continues work started in 1967, and which became what is probably the world's most extensive collaborative project to define a requirements modelling language that uses natural language, is scalable from small to huge projects, is in the public domain, is based on sound theory, and can provide a basis for new international standards.

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Newsflash
ISDOS and PRISE archives nearly recovered. Work is now in an advanced state in both UK and US to recover most of the ISDOS and PRISE archives of technical memos, working papers, and conference papers. These are being rendered into machine readable form from paper originals. Some of the documents will be made available here. It is not possible to put the whole archives on line as there are many items issued by ISDOS, which were marked as reproduced by permission of .... Therefore they cannot me published without the consent of the original copyright owner.
 
PSL/PSA rebuild project Print E-mail
Written by Administrator   
Tuesday, 20 July 2010

Work has now started to rebuild PSL/PSA. It is expected that a new version (v7.0) will be available early 2011. The rebuild of PSL/PSA will use completely new technology rather than being a port of earlier versions. The following table sets out the current view of releases:

 Version Characteristics
 7.0Implementation of Level 1 form shown in Business Process Analysis
 8.0Addition of Level 2 objects and relationships shown in Business Process Analysis book.
 9.0 Full functionality based on PSL/PSA v6.0

 

Last Updated ( Tuesday, 20 July 2010 )
 
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