Data Collection in Qualitative Research

For the topic of research: Understanding the Process of Organizational Strategic Change of a Local DIY Store”
(sample size: 13 managerial position employees of the store), please give

A detailed description of data collection procedures you intend to implement (Interviews and facility observation) for the chosen topic and qualitative methodology (case study)
A rationale related to ethical issues that have been covered (for example, assurance of confidentiality, anonymity, and respect for persons).
An informed consent document related to the topic and methodology will accompany the data collection procedures and will be referenced as Appendix A