•

Unknown – an initial or default status applied to new clashes if none of the automatic acceptance rules are triggered

•

Unapproved – the clash has not been reviewed and remains as a valid or outstanding clash for the project

•

Pending – this status is used to indicate that the clash is currently under review by the design teams

•

Conditional – this status is used to indicate that the clash has been reviewed and resolved in the design model. This also implies that following the next clash run this clash will no longer appear in the clash report. For reporting purposed this status implies a resolved clash.

•

Approved – this status is used to indicate that the clash has been reviewed and is considered acceptable by the design team. The clash will continue to be reported in subsequent clash runs, but its approved status will remain with the clashing items throughout the remainder of the project lifecycle. In Model Management terms, if an element has only ‘Approved’ clash status in the database, it is considered ‘Clash Free’.

•

Piping to Verify – a conditional approval to be used by the PIPING discipline only. This status may be used by the clash coordinator who has conditionally accepted a number of clashes on behalf of the PIPING team. Setting the status to this new value makes it easy for the PIPING team to filter on this status on the clash reports and therefore to review all clashes conditionally accepted on their behalf.

•

For Design Review – a pending status for use by all users. Clashes with this state require further investigation or discussion at the next design review meeting.