Sourcing Requirements and Designs for Software as a Service

Software as a Service SaaS has become an important pragmatic in the world of enterprise software and business services markets. SaaS supports the concept of outsourcing where business processes are offered under a service level agreement for a given price. However, sourcing SaaS may not always involve outsourcing with respect to the transfer of internal activities and resources to external service providers. Users of SaaS need to know what strategies to use when determining sourcing requirements. In this paper, the authors develop a classification for sourcing SaaS based on Kraljic's matrix and a mapping of SaaS services to the sourcing structures. Further, they evaluate the proposed sourcing models against two real world case studies.

[1]  S. Santy,et al.  Sourcing Lifecycle for Software as a Service (SAAS) Implementation Shell Case , 2010 .

[2]  Leslie P. Willcocks,et al.  Cloud sourcing and innovation: slow train coming? A composite research study , 2013 .

[3]  Models for decision making in purchasing: Kralic versus Monczka , 2007, 2007 International Symposium on Logistics and Industrial Informatics.

[4]  Thomas Hess,et al.  The Risks of Sourcing Software as a Service - An Empirical Analysis of Adopters and Non-Adopters , 2010, ECIS.

[5]  Marijn Janssen,et al.  Challenges for adopting cloud-based software as a service (saas) in the public sector , 2011, ECIS.

[6]  Malcolm Munro,et al.  Understanding service-oriented software , 2004, IEEE Software.

[7]  A. Weele,et al.  Purchasing and supply chain management , 1999 .

[8]  David C. Chou,et al.  Analysis of a new information systems outsourcing practice: software-as-a-service business model , 2007, Int. J. Inf. Syst. Chang. Manag..

[9]  Cees J. Gelderman,et al.  Advancements in the use of the purchasing portfolio approach. A case study , 2001 .

[10]  Jeffrey M. Voas,et al.  What's in a Name? Distinguishing between SaaS and SOA , 2008, IT Professional.

[11]  Madeleine Järsjö,et al.  Purchasing Must Become Supply Management , 2013 .

[12]  Michael Rosemann,et al.  Small And Medium Enterprises Sourcing Software As A Service - A Dynamic Perspective On Is Capabilities , 2012, PACIS.

[13]  Leslie P. Willcocks,et al.  Intelligent It Outsourcing , 2003 .

[14]  Erwin Fielt,et al.  Analyzing Requirements and Approaches for Sourcing Software Based Services , 2010, Int. J. Appl. Logist..

[15]  Paul P. Maglio,et al.  Steps Toward a Science of Service Systems , 2007, Computer.

[16]  Shrikant Mulik,et al.  An Approach for Selecting Software-as-a-Service (SaaS) Product , 2009, 2009 IEEE International Conference on Cloud Computing.

[17]  Schahram Dustdar,et al.  Data contracts for cloud-based data marketplaces , 2012, Int. J. Comput. Sci. Eng..

[18]  Jean Hartley,et al.  Case study research , 2004 .

[19]  Thomas Hess,et al.  Drivers of SaaS-Adoption – An Empirical Study of Different Application Types , 2009, Bus. Inf. Syst. Eng..

[20]  William E. Hefley,et al.  eSourcing Capability Model for Service Providers (eSCM-SP) , 2010 .

[21]  Leslie P. Willcocks,et al.  The New IT Outsourcing Landscape , 2012 .

[22]  Ivanka Menken.  SaaS - The Complete Cornerstone Guide to Software as a Service Best Practices Concepts, Terms, and Techniques for Successfully Planning, Implementing and Managing SaaS Solutions , 2008 .

[23]  Vincenzo D'Andrea,et al.  Service licensing: conceptualization, formalization, and expression , 2011, Service Oriented Computing and Applications.

[24]  Michael A. Cusumano,et al.  Cloud computing and SaaS as new computing platforms , 2010, CACM.