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@CloudExpo Blog Authors: Wayne Lam, Liz McMillan, Tom Lounibos, Elizabeth White, Roger Strukhoff

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What Is iPaaS? Gartner Provides a Reference Model

iPaaS is a platform for building and deploying integrations within the cloud and between the cloud and enterprise

It's no secret that cloud integration is one of the main challenges facing today's enterprises. In order to meet the growing need for secure and reliable cloud integration solutions, several vendors have started to offer integration services known as iPaaS, or integration Platform as a Service.

iPaaS is a cloud-based integration solution that is steadily gaining buzz, but - as with other cloud offerings - it is important to look beyond the hype for actual substance. One sure sign that iPaaS is securing its place as a legitimate category in the cloud computing stack is Gartner's slew of research publications in the past several months on iPaaS, the most recent of which is the "Gartner Reference Model of Integration PaaS." This growing attention is a good sign for iPaaS vendors, but a few people may still be unclear about what iPaaS actually is or does.

In simplest terms, iPaaS is a platform for building and deploying integrations within the cloud and between the cloud and enterprise. With iPaaS, users can develop integration flows that connect applications residing in the cloud or on-premise and then deploy them without installing or managing any hardware or middleware.

Providing further definition and specificity to the iPaaS category, Gartner outlines a number of key functions in its reference model. These include tools and technologies that support the execution of integration flows, the development and life cycle management of integrations, the management and monitoring of application flows, governance, and essential cloud features such as multitenancy, elasticity and self-provisioning. Gartner also sees iPaaS as a potential platform for the buying, selling, and exchange of integration flows (both out-of-the-box and custom-built patterns) between users and service providers.

Because the iPaaS model is still in its early stages, Gartner points out that iPaaS offerings that are currently on the market may not include all of the features in its reference model. Instead, Gartner identifies three categories of iPaaS vendors, each of which emphasizes a different area of integration: e-commerce and B2B integration, cloud integration, and ESB and SOA infrastructure.

Depending on the particular integration needs of an enterprise, some vendor options may be a better fit than others. For short term integration needs, iPaaS offerings that focus on e-commerce/B2B integration and cloud integration provide simple solutions that quickly connect  partner applications and cloud services.

Given the growing shift toward hybrid architectures, however, it would be a smart move to begin thinking about long-term integration strategies to support computing models that include both on-premise resources and cloud services. Of the three vendor categories, iPaaS offerings from vendors with a background in ESB and SOA provide the most balanced and robust set of capabilities for long-term integration and governance projects. Although Gartner points out that some of these offerings are currently in beta or development, it is clear that iPaaS vendors with expertise in ESB and SOA are in the best position to tackle systematic integration for the cloud era.

More Stories By Ross Mason

Ross Masson is the CTO and Founder of MuleSoft. He founded the open source Mule® project in 2003. Frustrated by integration "donkey work," he set out to create a new platform that emphasized ease of development and re-use of components. He started the Mule project to bring a modern approach, one of assembly, rather than repetitive coding, to developers worldwide. Now, with the MuleSoft team, Ross is taking these founding principles of dead-simple integration to the cloud with Mule iON, the world's first integration platform as a service (iPaaS). Ross holds a BS (Hons) in Computer Science from Bristol, UK and has been named in InformationWeek's Top 10 Innovators & Influencers and InfoWorld's Top 25 CTOs.

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