Kepler Project

Scientists in a variety of disciplines (e.g., biology, ecology, astronomy) need access to scientific data and flexible means for executing complex analyses on those data. Such analyses can be captured as 'scientific workflows' in which the flow of data from one analytical step to another is captured in a formal workflow language. The Kepler project's overall goal is to produce an open-source scientific workflow system that allows scientists to design scientific workflows and execute them efficiently using emerging Grid-based approaches to distributed computation.

Kepler is based on the Ptolemy II system for heterogeneous, concurrent modeling and design. Ptolemy II was developed by the members of the Ptolemy project at UC Berkeley. Although not originally intended for scientific workflows, it provides a mature platform for building and executing workflows, and supports multiple models of computation.

News

May 12, 2008	Kepler 1.0.0 Released! - see Downloads page. Kepler Core Newsletter
May 9, 2008	The Hydrant web-based workflow execution system released
February 11, 2008	Release candidate 1 for Kepler released (kepler-1.0.0rc1) - see Downloads page
November 10, 2007	A full-day Kepler tutorial will be presented at SC07 conference in Reno, NV.
September 1, 2007	Kepler/CORE funded to coordinate development of core features of Kepler
January 8, 2007	Kepler beta3 version released- see Downloads page
November 15, 2006	Kepler was presented with a full day tutorial at SC06 conference in Tampa Bay, Florida.
October 18, 2006	Kepler workflows enable LiDAR data processing on Grid
July 24, 2006	Kepler beta2 version released- see Downloads page
June 2, 2006	Kepler beta1 version released- see Downloads page
March 7, 2006	Kepler alpha9 version released- see Downloads page
January 2, 2006	Kepler alpha8 version released- see Downloads page
July 15, 2005	Kepler alpha7 version released- see Downloads page
May 24, 2005	Added a set of Flash demos of Kepler in action to the Kepler Examples page
May 4, 2005	News article titled Speeding Scientific Workflows: The Open-Source Kepler Project released
April 29, 2005	Kepler alpha6 version released- see Downloads page
May 12, 2005	Ptolemy/Kepler Miniconference UC Berkeley
December 3, 2004	New Kepler web site released

The Kepler Collaboration

The Kepler project is a cross-project collaboration to develop open source tools for Scientific Workflows. Currently this collaboration includes contributing members from the following projects:

• SEEK: Science Environment for Ecological Knowledge
• SDM Center/SPA: SDM Center/Scientific Process Automation
• Ptolemy II: Heterogeneous Modeling and Design
• GEON: Cyberinfrastructure for the Geosciences
• ROADNet: Real-time Observatories, Applications, and Data Management Network
• EOL: Encyclopedia of Life
• Resurgence
• CIPRes: CyberInfrastructure for Phylogenetic Research
• REAP: Realtime Environment for Analytical Processing
• Kepler/CORE: Development of a Comprehensive, Open, Reliable, and Extensible Scientific Workflow Infrastructure

Contributing members jointly determine the goals for Kepler as well as contribute to the design and implementation of the software system. We welcome contributions and encourage other people and projects to join as contributing members.

Mailing lists

• kepler-announce
• A low volume, moderated list for Kepler-related announcements such as releases and news items. You can subscribe to the kepler-announce mailing list (see Archives).
• kepler-users
• If you have questions or comments related to the using Kepler, you can subscribe to the kepler-users mailing list (see Archives). This list is intended mainly as a support channel (see below if you'd like to make contributions or discuss Kepler development).
• kepler-dev
• Individuals can join the Kepler-DEV (see Archives) mailing list to interact with the rest of the development team. This list is for technical discussions of how to build and extend Kepler itself. Usage questions should be directed to the kepler-users list.