Smalltalk, XML on the Web presentation
Michael Lucas-Smith: Wizard Information Services
Monday 2:45:00 pm to 3:30:00 pm
Abstract: Although much XML-related work is being pursued in the systems integration and Web Services arenas, the way in which Object Oriented software can benefit from an XML Architecture at a more fundamental level has been largely overlooked. Software Architectures can benefit greatly from the unity and flexibility of a loosely-coupled XML-on-HTTP model that talks to Web Applications and Web Services natively. This experience report discusses how Wizard Information Services is adapting it's core applications architecture to be XML-based whilst taking full advantage of Smalltalk and its Object Oriented paradigm.
Wizard has taken business objects stored in a relational database and opened them up to the XML world by adding an XML server built on VisualAge's Server Smalltalk technology. Internal SOAP transactions are transparent to clients that may choose a simple HTTP access method. A powerful XML transaction infrastructure can then be built using the Apache Group's Cocoon XML publishing server on top of a Smalltalk server writing XSLT to process XML updates. This experience has provided some insight into the effectiveness of SOAP for running services in a Smalltalk image.
Bio: Michael Lucas-Smith currently works at Wizard Information Services as the head of Research and Development. While at Wizard he has worked on Smalltalk business applications ranging from an Audio/Visual Archiving system to web content management software.
He has been involved with computers since age 4 and first came in contact with the concept of "Online" when he ran a BBS from his bedroom in high school. His software interests range from Commodore64 assembler through to modern business applications.
He has spent the last four years using VisualAge and the last two using VisualWorks. Michael is a co-author (with David Murphy) of the TypeLess irc client written in VisualWorks, has helped with James Robertson's Bottom Feeder and has contributed goodies such as StackOverflow and ThreePaneSelectorsBrowser.
Michael has recently started Software WithStyle with three other partners to pursue the WithStyle WebUI technology, a Web-based User Interface thin-client using XML.
See you in Seattle!