The Methods and Tools Special Interest Group met today from 5 pm till 6:.30 pm Central European Time.


Development of Interface Definition Language file corresponding to textual specification of Flowsheet Monitoring interface specification


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)


The Flowsheet Monitoring interface specification has recently been released as a textual specification by CO-LaN. In order for developers to implement this specification, the interface specification needs to be incorporated in the CAPE-OPEN Type Library (TLB) and Primary Interop Assembly (PIA) that CO-LaN is distributing. CO-LaN is currently developing the COM Interface Definition Language (CIDL) which corresponds to the textual specification for Flowsheet Monitoring and which is the input to the build of CAPE-OPEN TLB/PIA.

In doing so a number of issues have popped up which require a few modifications to the textual specification itself while the CIDL file seems now well frozen. A proper differentiation has been made now between what are properties and methods, and a method (GetStreamObject) of the ICapeStream interface has been found unnecessary today in a further review of the CIDL file. So the description of this method was eliminated from the textual specification as well as references to it.

Furthermore some wording in the requirement section of the textual specification has been revised: it pertains to the concept of Stream, of Stream Collection and of the CAPE-OPEN objects which are items of Stream Collections, i.e. Material Objects, Energy Objects and Information Objects. The wording has been changed to explain the difference in implementation requirements between PMEs already implementing Material, Energy and Information Objects and PMEs with no such implementation yet.

The next meeting of the Methods and Tools Special Interest Group is scheduled for August 28, 2019.


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.”