IntroductionTo be competitive in business requires a high level of adaptability among commercial offerings as well as an underlying agile IT infrastructure. Fast-paced business demands challenge the capabilities of their corresponding IT departments to deliver innovative solutions quickly and cost-effectively. Over the years, cloud computing has become an innovative solution that businesses can use to keep pace with managing business needs and corresponding IT requirements. A specific area of ​​cloud computing called Software as a Service (SaaS) is the notion that third-party companies (such as SalesForce.com, Taleo, and NetSuite) provide powerful applications to meet business needs over the web (e.g. example, the cloud). Software as a Service offers the simplicity of integrating application software into the enterprise: new features can literally be deployed as quickly as a data subscription can be obtained through a credit card payment. The popularity of cloud computing over the years has accelerated rapidly at a rapid pace. global level. Research firm IDC predicts that businesses will spend approximately $42 billion by 2010 (Pattabhiram, 2010). Furthermore, research has also predicted that SaaS delivery of enterprise applications is growing at an annual rate of 19.4%, the fastest growing sector in the software industry (Pattabhiram, 2010). It has become clear that productivity can be improved, time to market accelerated, and cost savings can be realized by applying cloud-based techniques to address agile business challenges. Legacy Systems Business users need access to critical systems across the enterprise and may have many legacy applications that they need to use daily. As such, proper integration...... middle of paper...... June 19, 2010 from http://www.guardian.co.uk/technology/blog/2008/feb/16/ amazonwebservicesgoesdownKrebs (2008), Washington Post, Amazon: Hey spammers, get out of my cloud! Retrieved June 19, 2010 from http://voices.washingtonpost.com/securityfix/2008/07/amazon_hey_spammers_get_off_my.htmlCastIron.com (2010) Integration: The Critical Path to Cloud Computing, retrieved June 16 from http://www. castiron .com/wp/wp16_register.html?cn=70100000000D6IIPervasive.com (2010) Rapidly expand on-demand data services with Pervasive Data Cloud 2, retrieved June 16, 2010 from http://cloud.pervasive.com/SiteCollectionDocuments /DataCloud2_ServiceDescription_14. pdfPervasive.com (2010) Hundreds of Organizations Perform Cloud-Based Integration as a Service on Pervasive Data Cloud, retrieved June 16, 2010 from http://www.pervasiveintegration.com/dcontent/Collateral/DataCloud.pdf