Comment:

A central issue that this implementation guide can help address is to provide standardized way of recording how one (or set of people more likely) "traveled" from L1 to L4 so that the decisions made and the assumptions that impacted those decisions are fully documented. It will be important to account for the history of the iterative approach described in the background, which in turn will be essential to trustworthy sharing and dissemination among stakeholders who need to decide whether they can make those same assumptions and should make those same decisions. Examples include: why a particular value set (or member of a value set) was chosen or not, why certain events for ECA rules were identified but others were not considered, etc. The checklists provided may help somewhat, but the checklists seem to be more of a tool in planning rather than a tool for documentation after decisions have been made. Please provide guidance on where/how/when developers and implementers should record why they made these decisions/assumptions so that they can be more consistently discoverable by themselves and others afterward.

Summary:

Guideline authoring and implementation decisions