Research Top Tips
Write as soon as you have any data, if not before. Continue writing throughout the process of analysis. Writing IS the analysis, not the report of it.
Transcribe at least the first few interviews yourself, to get a feel for how people talk about the topic and how the interview topic guide worked.
Consider from the outset the durability and portability of your data management system: will the case documentation be accessible, and still make sense in 5 years time? To another researcher?
To help think about relationships between your themes/codes, try mapping them out pictorially.