22
Alan Williams
Public beta of Taverna 2 is released
<p>Taverna 2 beta 1 the public beta for Taverna 2 is now available for download from <a href="http://www.mygrid.org.uk/">http://www.mygrid.org.uk</a>. Taverna 2 itself is scheduled for release in December 2008.</p>
<p>Taverna 2 workflows have new capabilities but you can still run existing Taverna 1 workflows in Taverna 2.</p>
<p><strong><span style="font-size: larger">Issue Reporting</span><br />
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</strong>If you notice any problems with Taverna 2 beta 1 that are not included in the issues then please report them on the taverna-users mailing list (see <a href="http://www.mygrid.org.uk/tools/taverna/taverna-mailing-lists/">http://www.mygrid.org.uk/tools/taverna/taverna-mailing-lists/</a>)<br />
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<b><span style="font-size: larger">Increased Functionality</span></b><br />
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Taverna 2 beta 1 (<a href="http://www.mygrid.org.uk/tools/taverna/taverna-2/taverna-2b1-documentation">http://www.mygrid.org.uk/tools/taverna/taverna-2/taverna-2b1-documentation</a>) has greatly improved functionality over Taverna 1. It includes:<br />
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* An improved user interface<br />
* A configurable flexible activity (service) palette<br />
* A new graphical workflow editor including<br />
o Drag and drop of activities into the workflow<br />
o Graphical creation/deletion of input and output ports<br />
o Graphical creation/deletion of links<br />
o Activity selection by clicking<br />
o Expansion of ports on individual activities<br />
o Expansion of individual nested workflows<br />
o Zooming<br />
o Unlimited undo and redo of edits<br />
* A greatly improved enactor offering<br />
o Pipelining of data from iterative calls of an activity so<br />
that subsequent activities are started as soon as possible<br />
o Streaming of data from individual calls of activities so<br />
subsequent activities can start<br />
o Production of output results as soon as possible<br />
o Support for WSRF services<br />
o Error reporting to allow traceback and debugging of problems<br />
o Error resilience so that one faulty piece of data does not<br />
stop a workflow run<br />
* A contextual view to show and edit information about an activity<br />
* A graphical interface for user preferences - including the<br />
default set of activities<br />
* Improved monitoring of workflow enactment<br />
o Monitoring of iterations of activities<br />
o Progress viewing within nested workflows<br />
* Support for URLs in local workers<br />
* Customization of local workers as workflow-specific beanshells<br />
* Saving/closing of all workflows<br />
* Opening of multiple workflows in one go<br />
* Cyclic dependency detection within workflows<br />
* Expansion into nested workflows using the Workflow Explorer<br />
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<b><span style="font-size: larger">Installation</span></b><br />
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For details on how to install and run Taverna 2 beta 1 please see the download documentation at <a href="http://www.mygrid.org.uk/tools/taverna/taverna-2/download-taverna-2b1">http://www.mygrid.org.uk/tools/taverna/taverna-2/download-taverna-2b1</a><br />
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<b><span style="font-size: larger">License</span></b><br />
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Taverna 2 beta 1 is licensed under the the Lesser General Public License (LGPL) Version 2.1.<br />
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<b><span style="font-size: larger">Issues and Future Roadmap</span></b><br />
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There are some known issues (<a href="http://www.mygrid.org.uk/tools/taverna/taverna-2/taverna-2b1-documentation/taverna-2b1-issues/">http://www.mygrid.org.uk/tools/taverna/taverna-2/taverna-2b1-documentation/taverna-2b1-issues/</a>) with Taverna 2 beta 1. A roadmap (<a href="http://www.mygrid.org.uk/tools/taverna/taverna-2/taverna-2b1-documentation/taverna-2b1-roadmap/">http://www.mygrid.org.uk/tools/taverna/taverna-2/taverna-2b1-documentation/taverna-2b1-roadmap/</a>) describes our plans to solve them and, also, to increase Taverna 2's functionality.<br />
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</p>
Tue Nov 18 17:11:26 UTC 2008