| 1. |
- Kattge, Jens, et al.
(författare)
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TRY plant trait database - enhanced coverage and open access
- 2020
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Ingår i: Global Change Biology. - : Wiley-Blackwell. - 1354-1013 .- 1365-2486. ; 26:1, s. 119-188
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Tidskriftsartikel (refereegranskat)abstract
- Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait-environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives.
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| 2. |
- Ferme, Vincenzo, et al.
(författare)
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Workflow Management Systems Benchmarking : Unfulfilled Expectations and Lessons Learned
- 2017
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Ingår i: PROCEEDINGS OF THE 2017 IEEE/ACM 39TH INTERNATIONAL CONFERENCE ON SOFTWARE ENGINEERING COMPANION (ICSE-C 2017). - : IEEE. - 9781538615898 ; , s. 379-381
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Konferensbidrag (refereegranskat)abstract
- Workflow Management Systems (WfMSs) are a type of middleware that enables the execution of automated business processes. Users rely on WfMSs to construct flexible and easily maintainable software systems. Significant effort has been invested into standardising languages for business processes execution, with standards such as the Web Services Business Process Execution Language 2.0 or the Business Process Model and Notation 2.0. Standardisation aims at avoiding vendor lockin and enabling WfMS users to compare different systems. The reality is that, despite standardisation efforts, different independent research initiatives show that objectively comparing WfMSs is still challenging. As a result, WfMS users are likely to discover unfulfilled expectations while evaluating and using these systems. In this work, we discuss the findings of two research initiatives dealing with WfMSs benchmarking, presenting unfulfilled expectations and lessons learned concerning WfMSs' usability, reliability, and portability. Our goal is to provide advice for practitioners implementing or planning to use WfMSs.
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| 3. |
- Geiger, Matthias, et al.
(författare)
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BPMN Conformance in Open Source Engines
- 2015
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Ingår i: 2015 IEEE Symposium on Service-Oriented System Engineering. - : IEEE. - 9781479983568 ; , s. 21-30
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Konferensbidrag (refereegranskat)
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| 4. |
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| 5. |
- Geiger, Matthias, et al.
(författare)
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On the Evolution of BPMN 2.0 Support and Implementation
- 2016
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Ingår i: Service-Oriented System Engineering (SOSE), 2016 IEEE Symposium on Service-Oriented System Engineering (SOSE). - : IEEE. - 9781509022533 ; , s. 119-128
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Konferensbidrag (refereegranskat)
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| 6. |
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| 7. |
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| 8. |
- Lenhard, Jörg, et al.
(författare)
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Lessons Learned from Evaluating Workflow Management Systems
- 2018
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Ingår i: Service-Oriented Computing – ICSOC 2017 Workshops. - Cham : Springer. - 9783319917634 - 9783319917641 ; , s. 216-228
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Konferensbidrag (refereegranskat)abstract
- Work ow Management Systems (WfMSs) today act as ser- vice composition engines and service-oriented middleware to enable the execution of automated business processes. Automation based on WfMSs promises to enable the model-driven construction of exible and easily maintainable services with high-performance characteristics. In the past decade, signi cant e ort has been invested into standardizing WfMSs that compose services, with standards such as the Web Services Business Process Execution Language (WS-BPEL) or the Business Process Model and Notation (BPMN). One of the aims of standardization is to enable users of WfMSs to compare di erent systems and to avoid vendor lock-in. Despite these e orts, there are many expectations concerning portabil- ity, performance e ciency, usability, reliability and maintainability of WfMSs that are likely to be unful lled. In this work, we synthesize the ndings of two research initiatives that deal with WfMSs conformance and performance benchmarking to distill a set of lessons learned and best practices. These ndings provide useful advice for practitioners who plan to evaluate and use WfMSs and for WfMS vendors that would like to foster wider adoption of process-centric service composition middleware.
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