Changes to Cadence® products are identified by a Cadence Change Request (CCR). A CCR is a unique identifier and tracking mechanism within the Cadence Change Management System (CCMS) to document a product issue or enhancement. CCRs are identified by a unique number in the CCMS database and this is cross-referenced to a case. CCR status is viewable on Cadence Online Support. 

CCR Severity

Severity is an objective indicator of how bad a problem is technically. Severity is an attribute of the problem itself as characterized by Cadence and the requester and has the following three levels of distinction.

0 - No Workaround ("S0")
  • A production-stopping software bug with no workaround that is acceptable to the customer
  • Associated Service Request remains open until the CCR is resolved and customer has confirmed the fix
  • For faster resolution of your issue, please provide a test case to the SR owner
1 - Workaround ("S1")
  • A production-stopping defect with an acceptable workaround
  • Severely production limiting defect having negative impact on customer productivity
  • Associated Service Request remains open until it has been confirmed that the customer has been notified of the fix
2 - Minor ("S2")
  • An enhancement to existing functionality that will improve the use of the product
  • Once assigned, the case is closed

CCR Urgency

Urgency addresses the need for quicker than standard response and has the following two levels of distinction.

U - Urgent
  • Immediate help getting customer working is required
  • Issue is stopping tapeout at the customer site
  • Issue has a significant financial impact on the customer and/or Cadence workaround is unacceptable to the customer because it requires many error-prone, often repeated, manual steps
  • Workaround adds significant time to customer's design efficiency
  • Performing the workaround requires additional engineering resources
D - Default
  • Fix needed when available under standard maintenance planning/fixing cycles