Zhiming Xue “Z" is a senior Microsoft Architect Evangelist, based in the Washington DC area. He works with enterprise customers to help architect business solutions using Microsoft products and technologies, while maintaining an online communication with developers and architects through his MSDN blog and the ArCast.TV program at Microsoft Channel9. During his tenure with Microsoft Services, he played technical and architectural roles on many large-scale projects for customers in the commercial sector and the public sector. He has presented various topics at Microsoft events including TechEd China and local community events. He holds a Ph. D. in Management Science from the Isenberg School of Management at the University of Massachusetts at Amherst, a professional certification from American Production and Inventory Control Society (APICS), and several Microsoft certifications.He can be reached through his blog at http://blogs.msdn.com/zxue.