Question, I came across a workflow engine at an public ftp (government site) site back in late 1999 using Tcl as it core programming language. The only copyright notice is from a university. What can be done with this. Since it was a public site, and no other notice of use was ever disclosed on the code or site... It is a very good workflow engine. I have rewritten the database connectivity to support ODBC, made it an extension, and added a few new features... ---- Note that '''only''' the creator, or possibly the employer of the creator, can make changes or clarification to a license/copyright. ---- [AK] I'm a bit lost to with regard to the information above. Is it possible to add an url referencing the ftp site or any other place having this workflow engine ? ---- Anyone want to tell me what a workflow engine is? [AK] If I understand the term right a system which can be programmed with (business) rules and then helps to organize the flow of documents in an organization. Like for example if I apply for a vacation I go to a website, enter the info and the wf engine then transports it someone in HR etc. who can (dis)approve the application, based on availability of such people. There's more to it I guess. ---- Well, the ftp site went private, it seems that that ftp site was not supposed to be public. Oh well, I downloaded it and liked what they did. The site was publicly open, and no restrictions where placed on the code. The originators left JPL to form a new company and had licensed the code from NASA (www.oakgrovesystems.com), but they parted from using Tcl and went to java for J2EE...But on November 9, 2001, the company closed it doors.... As for the definition, it is a complete adhoc workflow engine from which you write code using Tcl and custom functions to provide workflow steps and tasks to process stuff or assign tasks to users.... or as it was explained above by [AK]... the backend being in Tcl as an executable, the web cgi being perl, the web server being java...From which I redesign the backend to be an extension, the web server and cgi are now pure Tcl...I've added ODBC to the built-in microsoft sql stuff... ---- I found some references to 'WWWork' - is this the code that you mention? http://fstsrv.jpl.nasa.gov/library/hicss_1997.html I would be interested in seeing this code. Another Tcl based workflow engine is 'wftk', see http://www.vivtek.com/freebies.html