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For a direct launch of an asset, through a Referral Object, OLSA ensures that the TDR for this asset is available at the time of the actual end-user content completion event using the standard protocol primitives. For SCORM, the OLSA content synchronizes with the LMSFinish call. For AICC, OLSA content or the OLSA server itself synchronizes with the exitAU message. This means the TDR for the associated direct launch, through a Referral Object, will be ready for retrieval when the associated LMSFinish or exitAU is received by the LMS. This feature can be used to advantage when implementing the Pattern2 approach.