They are typically based on desk research using contemporaneous routinely gathered information and commentaries, they usually contain both quantitative details and qualitative description. This information from PapersOwl describes the techniques to write a case study — from figuring out troubles to presenting findings within a structured way. As Flyvbjerg notes, https://shanengnnz.canariblogs.com/examine-this-report-on-case-study-help-53511729