Towards Requirements Engineering for "Software as a Service"*
Marina Berkovich, Sebastian Esch, Jan Marco Leimeister, Helmut Krcmar · Alexandria (UniSG) (University of St.Gallen) · 2010
Software as a Service (SaaS) is defined as a software offered as a service that can be accessed via the Internet (Buxmann et al. 2008). A main characteristic of SaaS is that it separates the owner and the user of software. SaaS can be seen as a complex solution, aiming at solving customers‟ problems and providing advantages for him (Böhmann und Krcmar 2007; Berkovich et al. 2009). Such a complex solution is also known as a hybrid product (Leimeister und Glauner 2008), which is a combination of physical products and services offered on the market as integrated service bundle. The success of a solution depends on how good it satisfies the wishes and requirements of the customer. To know these requirements it is important to carry out requirements engineering (RE) accurately. Especially interesting is how RE for SaaS has to be done. In this paper the RE for SaaS is discussed from the perspective of hybrid products. The main contribution of it is a list of requirements on the RE of SaaS as a hybrid product.