The Methods & Tools Special Interest Group met from 4 pm till 5:30 pm Central European Time.


  • Threading models

U.S. Environmental Protection Agency (represented by Bill BARRETT), AmsterCHEM (represented by Jasper van BATEN), Bryan Research & Engineering (represented by Michael HLAVINKA), Michel PONS (contractor to CO-LaN as Chief Technology Officer).


Methods & Tools Special Interest Group addressed the following requirement included in the specification of threading models as applied to CAPE-OPEN: any Process Modelling Component (PMC) must make call backs on PME (Process Modelling Environment) objects only from the thread the PMC was called on by the PME.

Is there a way to abandon this requirement? If so, what additional exchange of information should take place between the PMC and the PME? If requirement is abandoned, what would be the consequences in terms of marshalling and in possible loss of performance?

Methods & Tools Special Interest Group developed the rationale for keeping this requirement. Review of the rationale will be made by SIG members in preparation of the next meeting, to be held on May 23, 2023.


Picture of Bill BARRETT (US EPA representative) in December 2018Contact Bill BARRETT (representative of US Environmental Protection Agency, leader of the Methods & Tools Special Interest Group) should you wish to join the Methods & Tools Special Interest Group. Its charter is: “Improve integration, and expand utilization of Computer-Aided Process Engineering (CAPE) applications within the enterprise through identification and resolution of existing cross-cutting issues with the CAPE-OPEN platform, develop mechanisms for use of CAPE within other application domains, and incorporate advances in information technology into the CAPE-OPEN platform.”