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Fujitsu's Approach to Platform As a Service (Paas) Fujitsu’s Approach to Platform as a Service (PaaS) Shoji Wajima Software as a service (SaaS) has been deployed primarily for general-purpose applications, but recently it has been increasingly used for industrial applications. In addition to being used for existing non-routine tasks, it is beginning to be introduced in individual businesses as part of the systems integration for mission-critical tasks. Although investment in information technology (IT) is starting to show signs of recovery for corporate information systems, a long-term vision still remains hard to achieve. This has resulted in a growing tendency for investment decisions to be made on the basis of concepts such as small-scale rapid development and in-house design/development/operation in order to construct systems that are not contingent on external factors. At the same time, service provider customers are increasing their expectations and demanding not only a simple provision of functionality but also the proposal of a framework that contributes to the success of their business. Using case examples, this paper describes Fujitsu’s efforts to address these evolving market demands by providing a platform as a service (PaaS), where an application development and execution environment is provided as a service. It also introduces our future plans and the services we will provide. 1. Introduction recently in business applications as well. The trends of software-as-a-service (SaaS) At the Fujitsu Group, we are planning to utilization in Japan show that SaaS achieved provide roughly a hundred SaaS applications 20% penetration into businesses in 2009 (or 40% by the end of fiscal year 2010, and nearly half including businesses considering introducing of them will be business SaaS applications (for SaaS). By achieving a market share of over local government, agricultural businesses, etc.), 16%, it has “crossed the chasm”note 1) of technology which will be developed and provided mainly by adoption and can be expected to perform well in business-oriented systems engineers. Platforms the future.1) The number of applications, mainly that can be used for running these SaaS the information infrastructure (groupware, applications currently include infrastructure as a E-mail, etc.), being provided is also rising and a service (IaaS), where hardware resources such as trend towards SaaS introduction has appeared servers are provided as a service, and platform as a service (PaaS), where an application note 1) In the marketing of high-tech industrial development and execution environment is products such as information technology provided as a service. The left side of Figure 1 solutions, there is a crucial gap between initial market introduction and mainstream illustrates the range of use of IaaS, PaaS, and acceptance that must be crossed if a product SaaS, each of which is provided as an independent is to achieve success. In an influential service tailored to an individual use application marketing book by Geoffrey A. Moore, this is referred to as “crossing the chasm.” and the aims of a particular customer. A recent FUJITSU Sci. Tech. J., Vol. 46, No. 4, pp. 427–434 (October 2010) 427 S. Wajima: Fujitsu’s Approach to Platform as a Service (PaaS) trend has been towards the implementation incorporating systems for handling unexpected of PaaS by reconfiguring in-house systems changes, preparing a system infrastructure that mainly in corporate information technology (IT) can install and run applications quickly, and departments. creating a development/operation organization In this paper, I describe the customer that increases IT system utilization. Amid expectations for IaaS, PaaS, and SaaS and how this trend for reducing external dependencies, Fujitsu is working to meet them, including some sourcing optimization (striking the ideal balance examples of applications chiefly involving PaaS. between outsourcing and insourcing) is an I also describe the future prospects of PaaS as a important goal for the introduction of services practical tool. by customers, and it is thought that the service provider’s role includes providing customers with 2. Fujitsu’s role as a service added value by way of various solutions such as provider rapid development and the provision of systems We expect over 40% of the fiscal year 2010 (and system operations) that are robust against IT investment plans of companies that use IT external changes. services to show increased levels of investment, Providing added-value appeal involves a and this figure exceeds 90% if we include considerable burden in terms of know-how, man- companies that will maintain their existing hours, and such like for (individual) in-house investment level, so we can say that these production work by customers who want to keep businesses have become more forward-looking. up with the latest technological developments However, the basic idea behind corporate in application operating techniques and virtual investment is still to create a more profitable server configuration techniques and who want system. Since there is no change in the inability to operate their systems and applications of businesses to foresee the future, we regard accordingly. We must provide solutions that are it as essential that the structures and systems available only from Fujitsu and that customers of businesses are made more profitable by feel are in the best interests of their business Hybrid integration PaaS+SI Maintenance and operation Maintenance and operation of individual applications SaaS Application services Common to all Business- businesses specific PaaS SaaSplatformSaaS platform services services IaaS Application platform Resource platform Security services Management services Management services Network services Conventional data center Outsourcing services Data center facility services Cloud integration services (requirements definition, design,(requirements definition, design, construction, introduction, migration) construction, introduction, migration) Trusted-Service Platform Cloud service Life cycle management services(on-premises)services (on-premises) SI: Systems integration Figure 1 Cloud service and related services. 428 FUJITSU Sci. Tech. J., Vol. 46, No. 4 (October 2010) S. Wajima: Fujitsu’s Approach to Platform as a Service (PaaS) when they need Fujitsu’s help. This is the role working on the development of related services that Fujitsu should perform. Providing customers such as Cloud integration to migrate customer with frameworks for in-house production is part environments to Cloud environments, and of this role. cooperation with the life cycle management service that is the on-premises provision of 3. Fujitsu’s activities services. Using this service platform, we will help As mentioned above, Fujitsu as a service our customers to develop a profitable structure. provider should be aware of the sourcing balance SaaS-PF is described below with particular and provide the added value demanded by reference to the application platform (Figure 2). customers. This is put into practice by the Cloud As a development/execution environment service and related services that form the core of for SaaS applications together with resources the “Trusted Service Platform” being deployed on such as servers and storage, it provides a Fujitsu’s next-generation data centers (Figure 1). variety of function groups as a service. For By visualizing the items of the promises SaaS applications, we provide authentication/ made to customers to provide a sense of authorization management [2)], service operation trustworthiness, Fujitsu not only simply provides management [3)] and a Java version/.NET version the promised functionality, but also provides application execution platform [1)], which are services that are aware of non-functional also needed for data/service cooperation. We are conditions such as usability checks that include continuously aiming to strengthen the capabilities network usability, data integrity and disaster of management functions, e.g., by expanding the recovery measures, and comprehensive security/ dashboard of controls and by using service state IT system measures. visualization. To actively promote use of the For this purpose, we provide SaaS-PF as a application platform, we are creating a technical platform for Cloud service integration (PF stands support menu that is needed when starting for platform). It comprises an “application SaaS businesses, and we are strengthening the platform,” which is an environment for the SaaS utilities (a group of functional tools such development and execution of applications, and a as portable document format [PDF] document “resource platform” that supports (incorporates) creation that supplement SaaS applications) [4)]. this environment. Provided service units are SaaS-PF is provided to support the business IaaS provided by the resource platform, PaaS startup activities of SaaS service providers, while provided by the application platform, and SaaS Fujitsu itself also has an active track record in provided by the applications themselves. providing SaaS applications. We are also active SaaS-PF is also used to build and operate in the systems integration field, where we are customer systems for the maintenance and building and operating system environments for operation of individual applications and our customers. On the basis of this experience for cooperating with an on-premisesnote 2) we aim to make continuous improvements from environment, and solutions that combine PaaS the user’s perspective
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