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The use of bottom-up metrics related to quality aspects of process models is trying to bridge the gap of use of the other two frameworks by non-experts in modeling but it is mostly theoretical and no empirical tests have been carried out to support their use.
Most experiments carried out relate to the relationship between metrics and quality aspects and these works have been done individually by different authors: Canfora et al. study the connection mainly between count metrics (for example, the number of tasks or splits -and maintainability of software process models);<ref>{{cite journal |first=G. |last=Canfora |first2=F. |last2=Garcia |first3=M. |last3=Piattini |first4=F. |last4=Ruiz |first5=C. |last5=Visaggio |title=A family of experiments to validate metrics for software process models |journal=Journal of Systems and Software |volume=77 |issue=2 |year=2005 |pages=113–129 |doi=10.1016/j.jss.2004.11.007 }}</ref> Cardoso validates the correlation between control flow complexity and perceived complexity; and Mendling et al. use metrics to predict control flow errors such as deadlocks in process models.<ref name=MendlingMoserBPM/><ref>J. Mendling, Detection and prediction of errors in epc business process models, Ph.D. thesis, Vienna University of Economics and Business Administration, http://wi.wu-wien.ac.at/home/mendling/publications/Mendling%20Doctoral%20thesis.pdf {{Webarchive|url=https://web.archive.org/web/20110717140629/http://wi.wu-wien.ac.at/home/mendling/publications/Mendling%20Doctoral%20thesis.pdf |date=2011-07-17 }}, 2007.</ref>
The results reveal that an increase in size of a model appears to reduce its quality and comprehensibility.
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| url = http://www.modelingconcepts.com/pdf/BPM_V2.pdf
| title = Abstraction Levels for Processes Presentation: Process Modeling Principles
| access-date = 2008-06-12
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| archive-url = https://web.archive.org/web/20110714110528/http://www.modelingconcepts.com/pdf/BPM_V2.pdf
| archive-date = 2011-07-14
| url-status = dead
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* [http://www.apqc.org/ American Productivity and Quality Center (APQC)], a worldwide organization for process and performance improvement
* [http://www.workflowpatterns.com/documentation/documents/vanderaalst98application.pdf The Application of Petri Nets to Workflow Management], W.M.P. van der Aalst, 1998.
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