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


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).


  • Transitioning between COM and COBIA
  • COBIA registration issue


Transitioning between COM and COBIA

The participants reviewed the appendix on transitioning to be added to CAPE-OPEN Persistence Interface Specification. The appendix describes a consistent mechanism to handle the transitioning of persistence from COM-based persistence to CAPE-OPEN-based persistence introduced in CAPE-OPEN version 1.2. Under CAPE-OPEN 1.0 and 1.1, persistence is performed by allowing a CAPE-OPEN PMC to be saved and restored by the PME as part of saving or restoring a flowsheet using COM persistence interfaces. Starting with version 1.2, CAPE-OPEN  expands the uses for persistence and provides a platform-neutral set of interfaces that can interoperate across different operating systems.

The participants decided to remove from start of appendix what pertains to a roadmap from CAPE-OPEN version 1.2 to CAPE-OPEN version 2.0. Began adding Use Cases after the requirements that have been defined to explain workflow.

COBIA registration issue

Briefly dealt with Ticket#45 on COBIA: appeared that no business case can be figured out about unregistering a COBIA-based DLL, which has not been registered, and getting anything else than success to this action. The ticket has been updated with further insight and parked as wontfix pending further input.

Next conference all of the Methods & Tools Special Interest Group is scheduled for March 3, 2021.


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.”