Jan S. Rellermeyer

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In this paper we take advantage of the concepts developed for centralized module management, such as dynamic loading and unloading of modules, and show how they can be used to support the development and operation of distributed applications. We do so through R-OSGi, a distributed middleware platform that extends the centralized, industrystandard OSGi(More)
As mobile and embedded devices become widespread, the management and configuration of the software in the devices is increasingly turning into a critical issue. OSGi is a business standard for the life cycle management of Java software components. It is based on a service oriented architecture where functional units are decoupled and components can be(More)
Over the last three years, Android has established itself as the largest-selling operating system for smartphones. It boasts of a Linux-based robust kernel, a modular framework with multiple components in each application, and a security-conscious design where each application is isolated in its own virtual machine. However, all of these desirable(More)
Mobile phones are rapidly becoming the universal access point for computing, communication, and digital infrastructures. In this paper we explore the software architectures necessary to make the mobile phone a truly universal access point to any electronic infrastructure. We propose AlfredO, a lightweight middleware architecture that allows developers to(More)
One of the most important challenges that need to be solved before the “Internet of Things” becomes a reality is the lack of a scalable model to develop and deploy applications atop such a heterogeneous collection of ubiquitous devices. In practice, families of hardware devices or of software platforms have intrinsic characteristics that make it very(More)
Cloud computing faces many of the challenges and difficulties of distributed and parallel software. While the service interface hides the actual application from the remote user, the application developer still needs to come to terms with distributed software that needs to run on dynamic clusters and operate under a wide range of configurations. In this(More)
Designing and testing distributed applications is still a difficult task that requires in-depth knowledge about networking issues. Eclipse is, among other things, a powerful and widely used IDE for the development of complex applications, in particular modular applications for the OSGi framework. Our R-OSGi middleware supports the seamless distribution of(More)
Updating software at runtime is a challenge that covers various aspects of software design and runtime systems. The OSGi Alliance has proposed and standardized a runtime system for composing Java applications out of modules, the OSGi Framework. The possibility to update modules at runtime and thereby dynamically change the application has been an intrinsic(More)