Common use of Provenance Clause in Contracts

Provenance. WS-GR-02. ILC has managed to extract data from the Taverna automatic provenance system (Taverna handles provenance using an intern database). This complex task is being done outside the standard Taverna provenance system which is useful but cannot be extracted. Taverna is releasing a new workbench at the end of February, which could bring some changes to the actual situation. The provenance data issue will become more important in the version of PANACEA handling massive data, where the Taverna Server solution will be examined. Further details will be provided in the context of D3.3 (t22). ▇▇-▇▇-01. Massive data can be handled in two different ways: as large collections of small (or average-sized) files, or as small collections of large files. UPF has used some workflows to test large files with Soaplab web services. File sizes were tested successfully from 100 KB to 100MB. However, bigger files should be tested in combination with the new Taverna Server (to be released in February 2011). The scenario with many small files has been tested up to 50 files. Again, these tests must be further examined in combination with the Taverna Server. This task and its result will be presented in D3.3 (t22). All tasks regarding Axis web services are depending on the Soaplab success. UPF has developed different web services using Axis2. Some of these web services are being successfully used in other projects. However, the cost of development and maintenance of these web services is much bigger than using Soaplab. Moreover, Axis2 web services, with this development stage, provide fewer features than Soaplab: more complex error handling and temporary files management, etc. From this point of view, Axis web service development tasks will be postponed and used as a fallback position or for some specific situations. WF-TV-02. Some tests with Taverna server were done at UPF. However, they were conducted at an early development stage of Platform version 1, when there was a lack of real workflows and finalized Soaplab web services. The new Taverna Server to be released in February 2011 makes it more interesting to continue those tests with the new version in order to address the real challenge of massive data with the now more stable PANACEA web services. This task and its result will be presented in D3.3 (t22).

Provenance. WS-GR-02. ILC has managed to extract data from the Taverna automatic provenance system (Taverna handles provenance using an intern database). This complex task is being done outside the standard Taverna provenance system which is useful but cannot be extracted. Taverna ▇▇▇▇▇▇▇ is releasing a new workbench at the end of February, which could bring some changes to the actual situation. The provenance data issue will become more important in the version of PANACEA handling massive data, where the Taverna Server solution will be examined. Further details will be provided in the context of D3.3 (t22). ▇▇-▇▇-01. Massive data can be handled in two different ways: as large collections of small (or average-sized) files, or as small collections of large files. UPF has used some workflows to test large files with Soaplab web services. File sizes were tested successfully from 100 KB to 100MB. However, bigger files should be tested in combination with the new Taverna Server (to be released in February 2011). The scenario with many small files has been tested up to 50 files. Again, these tests must be further examined in combination with the Taverna Server. This task and its result will be presented in D3.3 (t22). All tasks regarding Axis web services are depending on the Soaplab success. UPF has developed different web services using Axis2. Some of these web services are being successfully used in other projects. However, the cost of development and maintenance of these web services is much bigger than using Soaplab. Moreover, Axis2 web services, with this development stage, provide fewer features than Soaplab: more complex error handling and temporary files management, etc. From this point of view, Axis web service development tasks will be postponed and used as a fallback position or for some specific situations. WF-TV-02. Some tests with Taverna server were done at UPF. However, they were conducted at an early development stage of Platform version 1, when there was a lack of real workflows and finalized Soaplab web services. The new Taverna Server to be released in February 2011 makes it more interesting to continue those tests with the new version in order to address the real challenge of massive data with the now more stable PANACEA web services. This task and its result will be presented in D3.3 (t22).