These modes in turn are determined based on certain measurement results that are derived through instrumentation functionality that executes on the targeted mobile device.
Proposal #1 presents sequential execution with the functionality being executed before the architecture.
An accelerator is a hardware module attached to a processor core, which enhances the performance or functionality by executing certain functions in the accelerator instead of the processor core.
We emphasize the necessity to develop more fine grained methods for selecting services not only based on their abstract functional properties (and non-functional attributes, as, e.g., done in [16]) but also based on their functionality when executed.
Due to the abstraction, similar services most likely end up with identical formal descriptions, although they provide different functionality when executed.
Although the functional description of a service might be very detailed, there is always a high probability that a service is not or not sufficiently fulfilling the required functionality when executing it with concrete data.
24 Some workarounds exploit existing software functionality to execute tasks in ways unanticipated by the system designers.
The development of an activity model aims at capturing the order in which the relevant functionalities are executed and the functional entities (tool or connector) responsible for their execution.
Figure 6 gives a complete overview of the central functionalities for executing a client program on the DEF and it documents which actions are initiated at the DEF Module/DEF Cluster Module and the DEF Workers by which Client-API call.
Typical IAM systems consist of three fundamental components (Fig. 1): IAM data stored in the infrastructure, tool-supported functionalities for executing and automating user management tasks and policies structuring the management of the overall IAM system itself [27].
