Integrating the Cloud Scenarios and Solutions

Integrating the Cloud Scenarios and Solutions

Venky Shankararaman (Singapore Management University, Singapore) and Lum Eng Kit (Singapore Management University, Singapore)
DOI: 10.4018/978-1-4666-2187-9.ch009
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Abstract

Cloud computing adoption is on the rise due to reduced infrastructure resources and a need for agility in meeting IT demands. However, many organizations will still have on-premise applications along side with applications in the cloud, and will have to deal with the challenges that arise from integrating all these applications. In this chapter, the authors briefly introduce the various cloud computing architecture layers, provide detailed cloud integration scenarios, and discuss some of the challenges and present some integration solutions. They also provide points for consideration to help organizations decide appropriate integration solutions to suit their needs.
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Background

Cloud computing provides a number of benefits that act as key drivers for their adoption. These drivers include optimizing use of hardware infrastructure, offloading the burden of managing various computing resources and thus minimizing IT management overhead, reducing capital and operating costs by obtaining resources on a need to basis and paying for what is used, and ensuring business agility by dynamically meeting the IT needs of the business by scaling up or down to suit rapidly changing market demands of the consumer (Amrhein and Scott, 2009), (Plummer and Smith, 2009) and (Mell and Grance, 2009).

The above drivers have encouraged a number of organizations to adopt cloud computing as a paradigm for offering enterprise solutions.

As more and more enterprise applications are moved to the cloud infrastructure it will lead to a number of integration challenges. For example, organizations will still have a lot of business applications that are not moved to the “cloud” due to regulatory constraints such as HIPPA (Health Insurance Portability and Accountability Act), GLBA (Gramm–Leach–Bliley Act), and general security and NPPI (Non-Public Personal Information) issues. As a result, these on-premise applications have to be integrated with those in the cloud. Additionally, organizations must also face the challenge of integrating cloud-to-cloud applications. An example would be integrating a best of breed SaaS application (e.g. CRM) with another best of breed SaaS application (e.g. ERP).

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