Stephen Winnall has special expertise in the areas of data modelling, programming methodology, programming languages and web applications.
His expertise in data modelling covers XML, relational databases (SQL) and expert systems.
His programming skills include Java and Perl, as well as several other programming languages less used nowadays (C, Ada, Modula/2, RTL/2 etc.).
He has in depth experience of developing web applications using Cocoon, based on the servlet containers Tomcat and Jetty.