@conference {19489,
	title = {Cloud software upgrades: Challenges and opportunities},
	booktitle = {2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems (MESOCA) },
	year = {2011},
	month = {2011///},
	pages = {1 - 10},
	abstract = {The fast evolution pace for cloud computing software is on a collision course with our growing reliance on cloud computing. On one hand, cloud software must have the agility to evolve rapidly, in order to remain competitive; on the other hand, more and more critical services become dependent on the cloud and demand high availability through firm Service Level Agreements (SLAs) for cloud infrastructures. This race between the needs to increase both the cloud upgrade frequency and the service availability is unsustainable. In this paper we highlight challenges and opportunities for upgrades in the cloud. We survey the release histories of several cloud applications to analyze their evolution pace, and we discuss the shortcomings with current cloud upgrade mechanisms. We outline several solutions for sustaining this evolution while improving availability, by focusing on the novel characteristics of cloud computing. By discussing several promising directions for realizing this vision, we propose a research agenda for the future of software upgrades in the cloud.},
	keywords = {Availability, Cloud computing, cloud computing software, cloud upgrade frequency, collision course, Electronic publishing, Encyclopedias, service level agreement, service-oriented architecture},
	author = {Neamtiu, I. and Tudor Dumitras}
}
@article {15470,
	title = {Developing a Single Model and Test Prioritization Strategies for Event-Driven Software},
	journal = {Software Engineering, IEEE Transactions on},
	volume = {37},
	year = {2011},
	month = {2011///},
	pages = {48 - 64},
	abstract = {Event-Driven Software (EDS) can change state based on incoming events; common examples are GUI and Web applications. These EDSs pose a challenge to testing because there are a large number of possible event sequences that users can invoke through a user interface. While valuable contributions have been made for testing these two subclasses of EDS, such efforts have been disjoint. This work provides the first single model that is generic enough to study GUI and Web applications together. In this paper, we use the model to define generic prioritization criteria that are applicable to both GUI and Web applications. Our ultimate goal is to evolve the model and use it to develop a unified theory of how all EDS should be tested. An empirical study reveals that the GUI and Web-based applications, when recast using the new model, show similar behavior. For example, a criterion that gives priority to all pairs of event interactions did well for GUI and Web applications; another criterion that gives priority to the smallest number of parameter value settings did poorly for both. These results reinforce our belief that these two subclasses of applications should be modeled and studied together.},
	keywords = {EDS, event-driven software, graphical user interface, Graphical user interfaces, GUI testing, Internet, program testing, service-oriented architecture, test prioritization strategy, Web application testing},
	isbn = {0098-5589},
	doi = {10.1109/TSE.2010.12},
	author = {Bryce,R.C. and Sampath,S. and Memon, Atif M.}
}
