Jirka Kosek
Freelance XML consultant and university teacher
Member of OASIS DocBook, RELAX NG and ODF TCs
Czech representative in ISO/IEC JTC1/SC34 – many validation and schema technologies are standardized there including NVDL, RELAX NG and Schematron
W3C Invited Expert – XSL WG and ITS IG
Petr Nálevka
9 years experience as IT consultant
Developing distributed server-side applications
Maintaining Relaxed and JNVDL, both open source projects related to XML validation
Presented my XML related work at WWW, XTech and Extreme Mark-up Languges conferences