The Underlying Technologies That Drive SaaS

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Shifting towards the underlying technologies that drive SaaS, (Hurbean & Fotache, 2009) identifies SOA (Service Oriented Architecture) as being the “the most practical way for service providers to support the massive scale of integration that these large solution ecosystems will require”. SOA is an architectural style or framework, in which the objective is to achieve loose coupling, this differs from the conventional OOP (Object Oriented Programming) methodology employed by most software engineers since the 1990’s (He, 2003). In the OOP methodology, data structures known as objects are defined and grouped logically by fields and methods in one software library. SOA creates a loosely coupled implementation of business and technical processes, in which processes are abstracted into smaller reusable modular components called services (Mahmood, 2007). Its main objective is to create an improved collaboration between software vendors and third- party clients to create and consume business objects which facilitate the deployment, delivery and administration of this collaborative effort (Hurbean & Fotache, 2009). The most beneficial factor that these modular services contribute too; is that it introduces less errors and bugs into the system as the encapsulating application need not undergo a code change, this also allows for incremental enhancements which can be rolled out over a specific period of time (Hurbean & Fotache, 2009). This is achieved by abstracting these data structures into small sets of simple and ubiquitous interfaces which are made available via XML (Extensible Markup Language) based web services to all participating software agents (He, 2003). XML based web services allow the communication of a standardized X... ... middle of paper ... ...th IEEE Conference on Emerging Technologies and Factory Automation, 293–300. Lucas, K., Adrian, M., Wang, R., & Krauss, D. (2007). The state of enterprise software adoption in europe. Mahmood, Z. (2007). Service oriented architecture: Potential benefits and challenges. Proc. WSEAS Int. Conf., Crete, Greece, Rettig, C. (2007). The trouble with enterprise software. MIT Sloan Management Review, 49(1), 21. Robert Jacobs, F., & Ted'Weston, F. (2007). Enterprise resource planning (ERP)--A brief history. Journal of Operations Management, 25(2), 357-363. Rochwerger, B., Breitgand, D., Levy, E., Galis, A., Nagin, K., Llorente, I., et al. (2009). The reservoir model and architecture for open federated cloud computing. IBM Systems Journal, 53(4) Torbacki, W. (2008). SaaS–direction of technology development in ERP/MRP systems. Archives of Materials Science, 58, 58.

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