Economic Analysis of the SLA Mapping Approach for Cloud Computing Goods The net utility for all attributes at iteration i for consumer c is defined as the sum of the net o utilities u c , i ( ) : o u c , i = Figure 1 with a Cloud provider B that is in need of resources to deploy its applications or virtual machines outside its own Cloud. T var u o c , i ( ) (5) EXPERIMENT ENVIRONMENT In order to analyze the performance of the three adaptation methods with respect to the balance between adapting the public SLA template to the current needs of all users and the cost of mak- ing new SLA mappings, we set up a simulation environment. In addition to this, the overall utility and over- all cost (i.e., the utility and cost of all consumers c and attributes at iteration i) are defined as: U i + = U i - = c C T var u + c , i ( ) (6) c C T var u - c , i ( ) (7) Simulation Testbed For our simulation, we use a testbed that is com- posed of production-level software (VieSLAF) and software that simulates SLA mappings of users. Figure 4 illustrates our emulation testbed. Consequently, the overall net utility at iteration i is defined as the difference between the overall utilities minus the overall cost or as the sum of