The Authors

Theo Elzinga (@telzinga,

theo_elzinga1After graduation in Business Administration at the Groningen University in 1994, Theo started his career in Information Technology. Throughout his career his focus has been on shaping IT solutions on Enterprise as well as on project-level, based on the Packaged Based Solution SAP. Theo is working at Capgemini Netherlands, where he is one of the leading SAP-Solution architects. He’s currently involved as lead Architect in several global IT projects within Unilever.

Léon Smiers (@leonsmiers,

leonLéon Smiers works as a Software Architect/Engineer for Capgemini Netherlands in the area of Oracle Technology and Architecture, where he is one of the leading Oracle specialists. He has done a lot of work and research in the field of Integration and new technologies, like RFID, Process and GUI integration, on which he wrote articles and presented on international conferences. Currently Léon is setting up Solution Architectures for large Oracle based projects. Prior to Capgemini Léon worked for Ernst & Young Consulting, USoft, the City of Rotterdam and has 20 years of experience in IT. Léon obtained his Master of Science in Astronomy at the Leiden University. Léon maintains a blog around software architecture.

Joost van der Vlies (

joostFor over 15 years Joost is working in the field of Information Technology. He is working as a Solution and Enterprise Architect on the level of a total information system landscape, where multiple vendors and technologies need to work together. Specialized in Service Oriented Architecture (SOA) and Cloud Computing he is also knowledgeable on the transformation of architecture towards projects which realize the IT systems. He is graduated in Software Engineering (Polytechnic school) and Social Sciences and IT (University). He has worked for Capgemini the Netherlands for more than nine years till moving to China in 2008. He did a few projects for Capgemini China and stopped working for the company in Q1 2009, and joined Hewlett Packard. Since July 2012 he is back in the Netherlands.