Mark Wallace is a software architect working in the IBM Ireland software lab. In the past, he worked on the XSP runtime, which was developed for Lotus Component Designer and subsequently evolved into the XPages runtime. He has a keen interest in programming models and improving developer productivity. Mark has worked in Lotus and IBM for more than 15 years on various products and is currently working on Sametime Unified Telephony. Mark lives in Dublin with his wife and two children and spends as much time as possible in the Ireland's sunny south east enjoying fishing and kayaking with his family.