A large project that I worked on was the UX review of the internal booking system & customer information database. This system is used by call center staff, building staff, international ambassadors to surface student information, complex details of room availability, group bookings, financial information and track on-going cases.
I spent time getting to know the system and make detailed notes about each time I encountered a bug, missing information, or the inability to complete a needed task.
I conducted interviews with internal stakeholders and types up each interview after to collect all of the different complaints, needs, and uses of the system. I then went through each interview transcript to pull out the relevant information into a huge thematic analysis mind-map.
As well as interviews I spent time with the call center to observe and note the types of calls they receive, and the different work-around's they employ to get around the frustrating interface. One of the more interesting observations sessions was a night-shift with the over-night emergency staff to see they types of calls and issues they need to log in the system.