There's no question that cloud computing will be the trend to alter organizations' infrastructure the most over the next few years, especially as firms \n\ntransition from basic server virtualization to the private cloud. But today these environments are still relatively immature, acting as two distinct \n\nentities; applications are deployed in one or the other. But private cloud will not be the end of the road for cloud computing. Over the next three \n\nyears, leading edge IT shops will start blurring the boundaries between public and private IaaS environments, so that applications can move between \n\nthem based on immediate needs and economics\u2014known as hybrid cloud. Enterprise architects can begin planning for this now by creating a \n\nroad map that lays out the necessary capabilities for a hybrid cloud and using these to evaluate the capabilities provided by today's vendors and \n\nproducts.Slideshow: 5 Things We Love\/Hate About Cloud Management ToolsAs hybrid cloud matures, capabilities will be built into a variety of product offerings, including virtualization platforms, system management suites, \n\nand add-on management tools. How each organization implements these capabilities will depend on several factors including your strategic vendors, \n\nexisting IT investments, and the suitability of each vendors products and future road map. At Forrester, we see three possible scenarios for where \n\nhybrid cloud capabilities will be located in future infrastructure architecture: Scenario 1: Virtualization Platforms Become The Core. Today, virtualization platforms from companies like VMware and Microsoft are \n\npaired with management tools to run virtual infrastructures for tasks like provisioning, configuration, capacity planning, chargeback, and monitoring \n\nfor virtual systems. The ability to manage hybrid cloud environments is just now becoming a function of these platforms, with early versions focusing \n\non a narrow group of public cloud services based on the same platforms. Virtualization platform vendors will transition from virtualization management to suites capable of managing an entire hybrid cloud environment, \n\nrequiring a greater focus on managing physical infrastructure through built-in capabilities or integration with unified infrastructure offerings like the HP \n\nMatrix or Cisco UCS Manager. Enterprise architecture professionals should monitor the ability of virtualization suites to manage a cloud environment \n\nin its entirety, including physical infrastructure. This includes asking vendors to provide road maps for supporting major cloud APIs other than their \n\nown.Scenario 2: System Management Suites Extend To Cloud. Traditional system management suites are beginning to evolve their \n\ncapabilities to manage a hybrid cloud environment. Some systems vendors now pre-integrate system management suites with server, network, and \n\nstorage platforms, called unified or converged infrastructure. These vendors will continue to progress by adding hybrid capabilities to their tools, allowing businesses to upgrade existing management \n\ncapabilities or build new hybrid cloud environments from the ground up. EA professionals should watch management vendors' progress in adapting \n\ntheir platforms to cloud environments, checking if their systems management tools can provide integration of hybrid cloud capabilities across their \n\ntraditional management tools.Scenario 3: Third-Party Cloud Tools Excel In Specific Areas. Although third-party cloud tools can help build private clouds and assist with \n\nthe management of public cloud infrastructure, multiple products are necessary in order to design a hybrid cloud with all the required capabilities. \n\nThis process is further complicated by the overlapping capabilities of each product. As cloud management progresses, most vendors will be consolidated into either virtualization platform or system management vendors. EA \n\nprofessionals should continuously check to make sure the organization's architecture is aligned with strategic platforms by paying close attention to \n\nthe market traction of tools as well as partnerships with platform vendors and cloud service providers.While the path to hybrid cloud management is still unclear, these three scenarios suggest early decisions that may have to be made in order to \n\nbegin adapting management infrastructure to cloud management. In particular, which of these three scenarios most closely matches your existing \n\nservice management strategy, and whether it will drive the capabilities you require. Today, EA professionals should prepare computing environments for the destination of hybrid cloud infrastructure by focusing on the basics for a \n\nprivate cloud. This entails developing a long-term vision for how components will integrate, streamlining the current system management \n\nenvironment, and moving to image-based management, while monitoring the progress of cloud API development. Galen Schreck is Vice President and Principal Analyst at Forrester Research, serving Enterprise Architecture professionals. He will be \n\nspeaking at Forrester's IT Forum, May 25-27 in Las Vegas.