All of the above...
This on-line session is a continuation of a panel discussion at the NRAC, chaired by Erik Sandewall. It begins with the written notes of the panelists, and continues with the comments by the participants which can have the same style as in conference panel discussion: comments between the panelists, questions to the panelists from the "floor" (that is, all of you who see this page).
Within the discussion webpages (marked "html" above), each contribution begins with a headline field containing the date of the Newsletter issue where the contribution was sent out, the name of the author, and the title (if any) that was used for the contribution. Headlines with reddish background color is used for position statements.
The postscript edition of the discussion is also organized by month. The month segments were included in the Electronic News Journal on Reasoning about Actions and Change", which is published by Linköping University Electronic Press. The postscript links on the present page refers directly to the files maintained by the E-Press.
See also the separate discussion about Ontologies for Time, which is a spinoff of the present discussion.
The previous ECSTER discussion on "Approaches to Actions and Change" addressed similar topics but a while ago. The four position statements in that discussion may also be of interest here.