This paper reports on a pilot study of the integration between the Systemic Enterprise Architecture Method (SEAM) and the Analytic Hierarchy Process (AHP) in a requirements engineering project. The objective of the project, conducted in one of the major banks in Switzerland, was to select a common SOA tool that could satisfy the needs of two of the bank's main business units, investment and private banking. SEAM provided help in identifying stakeholders, eliciting their requirements, and analyzing these requirements. The resulting requirements were then grouped and translated into selection criteria for the alternative SOA tools. Based on these criteria, the stakeholders chose the tool to be purchased using AHP. We describe the project, the challenges we faced and the lessons learned. These relate to the nature and traceability of requirements, to the requirements elicitation process and to the relations between the bank's business units.

Cloud applications that offer data management services are emerging. Such clouds support caching of data in order to provide quality query services. The users can query the cloud data, paying the price for the infrastructure they use. Cloud management necessitates an economy that manages the service of multiple users in an efficient, but also, resource-economic way that allows for cloud profit. Naturally, the maximization of cloud profit given some guarantees for user satisfaction presumes an appropriate price-demand model that enables optimal pricing of query services. The model should be plausible in that it reflects the correlation of cache structures involved in the queries. Optimal pricing is achieved based on a dynamic pricing scheme that adapts to time changes. This paper proposes a novel price-demand model designed for a cloud cache and a dynamic pricing scheme for queries executed in the cloud cache. The pricing solution employs a novel method that estimates the correlations of the cache services in an time-efficient manner. The experimental study shows the efficiency of the solution.