XACML is commonly used as a policy exchange mechanism, decision engines are available, and verification tools are under development. However, no support for legacy access control systems exists yet. To explore the feasibility to support legacy systems, we designed and implemented a mapping of the IBMreg Tivolireg Access Manager policy language into XACML. Although the Tivoli Access Manager policy language, being ACL-based, is simpler in general, it turned out to be a non-trivial task to encode the interplay of the Tivoli Access Manager policy elements and decision logic within XACML. To achieve this task, we had to come up with a novel use of XACML features.

Tool support for mobile application development can significantly improve programmer productivity and software quality. Pegboard is a novel tooling framework that extends the Eclipse integrated development environment to support the development of mobile distributed applications. Its extensible design supports multiple application models and the orchestration of external tooling components throughout the development cycle. In this paper we describe Pegboard's architecture and implementation, and show how it improves the development experience through organization, visualization, simplification and guidance. We also discuss insights gained from interviewing software developers, including early users of Pegboard.

The DEAPspace project is building an interaction framework for connecting pervasive devices over the wireless medium, supporting the development of new proximity-based collective distributed applications. The main components of this framework are the discovery algorithm and the service description model. DEAPspace provides devices with useful information about the other devices in their surroundings. This information can be queried in a consistent way that will tolerate evolutions, and allow legacy devices to continue to function in the fast-developing world of pervasive gadgets. The discovery is done in a power-efficient, and network-friendly way, and will adapt to a wide range of error conditions. This framework has been implemented, and allows the development of distributed applications that use ad-hoc transient networking as part of their function. The primary implementation was in Java. A subset of the code was also written in C, to allow the use of machines which do not have a JVM. In addition to simulation, the code has been tested over TCP/IP and the Ethernet interface of an 802.11 link.