Organizations can implement several strategies to train and engage employees in a QMS according to ISO 9001:2015, ensuring their understanding and participation. These include providing comprehensive training and awareness programs, conducting regular communication sessions and workshops, encouraging two-way communication to gather feedback and address concerns, involving employees in decision-making processes, recognizing and rewarding their contributions, promoting a culture of quality responsibility, responding to all internal communications between all levels and functions, and fostering open and transparent communication channels.