Paul Parker-Johnson leads the cloud computing and virtual system infrastructures research practice for ACG. His work is in technology and architecture transformations, platform and use case developments, and market segmentation, forecasts and trends in cloud XaaS, data center and network virtualization in fixed, mobile, consumer and business service provider markets. PJ’s passion for virtualization and the cloud springs from a long history of engagement in network and service innovations over the past 30+ years. Most recently he served as director of Juniper Networks’ cloud computing solution delivery initiatives, orchestrating network, software, and solution bundles to market for numerous service provider and enterprise clients worldwide. Direct experience designing and delivering solution offerings in the XaaS and virtual data center landscapes informs his work. Prior to Juniper PJ held product, strategy and system engineering management positions at Cisco, BBN, and IBM. Follow Paul on Twitter @pj4cloud Paul is a guest blogger for the Cisco Service Provider Communities (cisco.com/go/serviceprovidercommunity). Expertise: service orchestration, virtual computing, virtual and physical networks, service provider use case analysis, service creation and deployment , business planning and business case analysis