Implementing the use of Emergency Severity Index Triage tool in Urgent Care Essay

I am completed my DNP project and manuscript on implementing the use of ESI triage tool in urgent care. I have chosen Lewins Change theory for my project as my theoretical model.

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I need Information on how to define this theory and how it Purpose and applications related to my project. I also need information on Methodology on PDSA by Deming How the researcher systematically designs the study and how the research is collected I have attached paper of my paper for review. Implementing the use of Emergency Severity Index Triage tool in Urgent Care Essay