Copper is a Web-based project management software tool designed to help creative teams manage clients, projects, tasks, files, budgets, and events. It has an HTML/AJAX front end. It is available with full source for a licence fee or as a SAAS hosted service (compatible with iPhone, but available via PC/Mac/Linux and a Web browser).
Interleave is a Web-enabled business process automation application. It enables you to model your business process like purchasing, project management, and contract management and make it available online. It's meant to replace processes which currently rely on paper, email, or spreadsheets and it has a very good workflow engine. You can create invoices, export to RTF and PDF based on templates, export to MS Excel, interpret incoming email, and publish your data to the Web.
Taverna is a collection of workflow enactment and description components, including a high level language for workflows called Scufl (Simple Conceptual Unified Flow Language), a pure Java object model, parser to populate the model, and a set of views and controllers (including some Swing components to drop into your workflow-enabled applications). In order to actually run workflows you also need the myGrid workflow enactment engine.
BIE (Business Integration Engine) is an open source integration system that makes it easy for organizations to exchange data with external trading partners regardless of their native applications. It competes in the same space as applications like Microsoft BizTalk except that it is truly cross-platform since it written in Java.
The Platinum Enterprise Solution is a J2EE based, GUI driven taskflow design and deployment suite. Non-technical people can describe how the Enterprise operates using the "Point'n'Click" Platinum Taskflow Designer, while the J2EE server component provides fast, flexible, reliable performace. Platinum is aimed at dramatically cutting down time to market of Enterprise class software.
SpectrumSCM is the first platform-independent, truly integrated enterprise-level Source Configuration and Management solution, which includes version control, process management, release management, advanced branching, issue tracking and much more, all integrated into one tool. In addition, it allows users to construct automated workflow engines and interfaces to external systems through the SpectrumSCM API. The tool also incorporates advanced security features through the Java Security Model, SSL, and LDAP. The client software can be run as an application or accessed over the Web as an applet or through Java Web Start. It also includes a full-featured commandline interface, strong IDE integrations, and a SpectrumSCM Proxy for remote users.