Mark Hapner is a Sun Distinguished Engineer and is currently Web Services Strategist for Sun Software. He is responsible for Sun's Web service strategy spanning Java Standards, Web Service Standards and Sun products. He is also Sun's WS-I Board Member. He was previously Lead Architect for Java 2TM Platform, Enterprise Edition and was responsible for guiding the overall architecture of J2EE 1.2, 1.3 and 1.4. Earlier he was co spec lead of the Enterprise JavaBeans specification and spec lead of the Java Message Service specification.