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Due to the number of cloud providers, as well as the extensive collection of services, cloud computing provides very flexible environments, where resources and services can be provisioned and released on demand. However, reconfiguration and adaptation mechanisms in cloud environments are very heterogeneous and often exhibit complex constraints. For example, when reconfiguring a cloud system, a set...
Multi-cloud computing has been proposed as a way to reduce vendor dependence, comply with location regulations, and optimize reliability, performance and costs. Meanwhile, microservice architectures are becoming increasingly popular in cloud computing as they promote decomposing applications into small services that can be independently deployed and scaled, thus optimizing resources usage. However,...
Worldwide, the number of people and the time spent browsing the web keeps increasing. Accordingly, the technologies to enrich the user experience are evolving at an amazing pace. Many of these evolutions provide for a more interactive web (e.g., boom of JavaScript libraries, weekly innovations in HTML5), a more available web (e.g., explosion of mobile devices), a more secure web (e.g., Flash is disappearing,...
The diversity of software components (e.g., Browsers, plugins, fonts) is a wonderful opportunity for users to customize their platforms. Yet, massive customization creates a privacy issue: browsers are slightly different from one another, allowing third parties to collect unique and stable fingerprints to track users. Although software diversity appears to be the source of this privacy issue, we claim...
Modern component frameworks support continuous deployment and simultaneous execution of multiple software components on top of the same virtual machine. However, isolation between the various components is limited. A faulty version of any one of the software components can compromise the whole system by consuming all available resources. In this paper, we address the problem of efficiently identifying...
Increasingly, software is required to accommodate new features after the design and deployment stages. Applications are designed to improve their adaptability and flexibility. Software needs to evolve at runtime with minimal interruptions and, when possible, never stop running. Different motivations push software design to allow such evolution at runtime. For example, production systems with critical...
Modern applications are no longer monolithic and centralized, they have become distributed, modular and dynamic. The OSGi Service Platform is thus commonly used for building modularized and dynamic Java applications, but its distribution model however relies on communication protocols using remote invocation semantics. Distributed Shared Memories (DSM) pro- vide an unusual approach to ease distribution...
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