The "check" phase of the PDCA cycle is defined for the quality management system as per ISO 9001:2015 as performance evaluation.

The PDCA cycle stands for Plan-Do-Check-Act.

• Plan: Establish objectives and processes.
• Do: Implement the processes.
• Check: Monitor and measure processes and results against objectives and requirements.
• Act: Take actions to improve performance.

ISO 9001:2015, the international standard for Quality Management Systems (QMS), is structured around the PDCA cycle. Clause 9 of ISO 9001:2015 is specifically titled "Performance evaluation." This clause details requirements for monitoring, measurement, analysis, evaluation, internal audit, and management review, all of which fall under the "Check" phase of the PDCA cycle.

The "check" phase involves evaluating the performance of the QMS against its objectives and requirements. This aligns directly with the concept of "performance evaluation" as described in ISO 9001:2015.

Therefore, the statement is TRUE.

TRUE