Home

Thanks to the use of standard technologies like XMPP and OSGi, the VIRTUS architecture is:

• Lightweight
• • • All the modules of VIRTUS are downloaded and installed from a (potentially remote) repository, so in every instance of VIRTUS only the useful modules can be installed, limiting the use of resources. • Portable o All the core of the platform is Java based, so it is portable on all the devices with a Java Virtual Machine (Windows, Linux, Mac). Furthermore, it has been designed and implemented to be vendor-neutral and hardware-agnostic. • Open o The technologies at the basis of the architecture are free and open-source, in this way the solution is fully free of costs and the technologies on which it is based are maintained by a great community of developers. • Reliable o The core of the XMPP protocol is a solid and mature technology, standardized more than ten years ago and already used in mass market products with millions of users, like google Talk. • Modular o The architecture is modular, composed by several modules that can be interconnected to each other to compose useful distributed applications • Extensible o The architecture is extensible, adding the modules needed and also the protocol XMPP is extensible, adding the feature and the XML structures, needed for own goals. • Event-driven o The architecture of the platform is completely event-driven allowing loose coupling within space, time and synchronization. • Fully decentralized o The XMPP protocol allows to create a fully decentralized architecture, where every instance of the middleware can be isolated from the extern • Secure o XMPP provides natively both encryption via the use of TLS (Transport Layer Security) and authentication via SASL (Simple Authentication and Security Layer) • Scalable o Every XMPP server can scale to handle thousands of users, also if installed in standard computers, without requiring expensive hardware.

Feature	XMPP	MQTT	CoAP	SoA	Service Bus