Make sure you jot down your Strategies, opinions, notes or thoughts related to your analysis. This method will help you build an define and write a case study appropriately. An appendix would be the A part of the paper which contains supplementary materials. The knowledge from an appendix in https://danteilosa.blogkoo.com/the-single-best-strategy-to-use-for-hbr-case-study-analysis-54162528