db4o is an object database for Java and all .NET environments. Its features include ACID transactions, automatic class schema recognition, query-by-example, a S.O.D.A. object querying API, native queries, LINQ support on .NET, callback methods, memory files, cascade-on-delete, multi-threaded access, and Java Webstart and servlet support.
MUSCLE (Multi User Server Client Linking Environment) is an N-way messaging server and networking API. It includes client-side networking APIs for various languages, including C, C++, C#, Delphi, Java, and Python. MUSCLE lets programs communicate over a network via streams of serialized Message objects. The included server program ("muscled") lets its clients message each other and store information in its server-side hierarchical database. The database supports flexible queries via hierarchical wildcarding, and "live" updates via a subscription mechanism.
SOAP Anywhere is a SOAP 1.2 implementation written in Java. The difference between SOAPAnywhere (SAW) and Implementations such as Apache SOAP and Axis is that SAW can not only be run through a WebAPP container, but can also run in both a standlone mode and as an integrated component of any Java application.
Af-Arch is an N-tier development framework to quickly build high-quality distributed applications. It currently supports C and C# programming languages, which enables you to write client applications using them. It currently runs on GNU/Linux and Microsoft Windows, and is being used in production environments.
Lasso (Liberty Alliance Single Sign On) is an implementation of the Liberty Alliance specifications. These specifications define protocols for federated identities, single sign-on, etc. Lasso supports ID-FF 1.2, SAML 2.0, and parts of ID-WSF. It provides both a C library and bindings for several languages (Python, Java, Perl, PHP 4, and PHP 5).
GeneSyS aims to define and implement a middleware architecture for generic system monitoring and supervision. It is an Information Society Project (IST-2001-34162) sponsored by the European Commission. It provides a middleware- and agent-based approach for system monitoring and management. It uses WebServices technology (SOAP) for communication between components and XML-based descriptions of monitoring information.