Dennis Callaghan

Dennis leads The 451 Group's coverage of service-oriented architecture (SOA), including Web services development, governance, integration and management tools, application integration, middleware and business process management. His coverage area also includes a number of other IT management technologies, such as Internet performance management, desktop management, service-level monitoring and management, IT asset and service management, and project management. Dennis also contributes regularly to 451 Special Reports on topics including open source adoption and virtualization. He often speaks at industry events focused on SOA and is regularly quoted in the trade and business press in articles about companies in this space.

Before joining The 451 Group, Dennis was a senior writer at eWeek magazine for more than five years. At eWeek he covered a number of application and productivity software beats, including CRM, business intelligence and analytics, email, IM, collaboration, enterprise search, business-to-consumer e-commerce technologies and portals. He also led eWeek's coverage of Sarbanes-Oxley Act compliance and the impact it has had on IT professionals, in addition to covering the software-as-a-service model and the IT market for small and medium-sized businesses.

Prior to joining eWeek, Dennis was Associate Editor at MC Magazine, where he covered the marketing of technology. He was also News Editor at Midrange Systems and Midrange Channels magazines, where he covered IBM AS/400 computing. In addition, Dennis has worked as a technical writer at SunGard Capital Markets, a global financial trading and risk management software firm, and as a sportswriter for a daily newspaper.