4store is an efficient, scalable, and stable RDF database. It was developed to underpin Semantic Web applications. It has been providing a base platform for these applications for around 3 years. It has successfully held and run queries over databases of 15GT, supporting a Web application used by hundreds of thousands of people.
The ATRACO Project is a prototype implementation of a trusted ambient ecology system that runs and manages activity spheres in an Ambient Intelligence Space. Activity spheres are realized by automatically discovering, selecting, and adapting smart devices (artefacts) existing in the space, according to user's preferences, customs, and activities. OWL ontologies are used for modeling user profile, devices, activities, and goal descriptions. Abstract plans are bound to specific devices, methods, and values through semantic matching.
Abacia Event is an event registration and management system that allows you to set up online and offline registration for events (seminars, conferences, expos, training, etc.). The system is very comprehensive. It allows you to register multiple ticket types, meals and other optional purchases, classes that happen concurrently, discounts, tiered pricing, and multiple registrations. Exhibitor, sponsor, and speaker registrations are supported. The exhibitor registration also has a floor plan drawing tool and a way to show the floor plans to the potential exhibitors so they can select their booth(s) and pay for them as well as create a Web page for them and allow attendees to see see the floor plan and schedule appointments with the exhibitor. There are also many other tools and features.