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Constructing testbeds for systems which are interconnected with large networks of other software services is a challenging task. It is particularly difficult to create testbeds facilitating evaluation of the non-functional qualities of a system, such as scalability, that can be expected in production deployments. Software service emulation is an approach for creating such testbeds where service behaviour...
Cloud computing increases the level of connectivity between software applications. IT management applications delivered as a service may need to connect to tens of thousands of endpoint systems. In order to validate the application's reliability and performance at these very large scales, its scalability needs to be tested before being deployed in the cloud. We use an emulation approach, whereby endpoints...
Enterprise software systems operate in large-scale, heterogeneous, distributed environments which makes assessment of non-functional properties, such as scalability and robustness, of those systems particularly challenging. Enterprise environment emulators can provide test-beds representative of real environments using only a few physical hosts thereby allowing assessment of the non-functional properties...
Distributed enterprise systems, which are comprised of multiple software systems, typically communicate using application-layer protocols. Being able to independently test each system's conformance to the protocol specification is important to ensure the overall robustness and reliability of the distributed system. While there exists many modelling languages for network layer protocols, very few tools...
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