1. critical functionalities
   1. the importance of the feature
      1. for users
      2. for business
   2. end-to-end test flows
2. frequency
   1. defects
      1. based on defect reports
   2. code changes
   3. used features
3. risk-based approach
   1. About ROAM for Risk Management (SAFe) using 5W2H
      1. https://www.xmind.net/m/thMghG/
4. feedback
   1. Users
   2. HelpDesk Service
   3. all sources
5. requirements
   1. quality
   2. stakeholders
   3. third party services
6. system
   1. architecture
   2. problematic areas
   3. results of tests
7. Product
   1. Some Product Prioritization Techniques (https://foldingburritos.com)
      1. https://www.xmind.net/m/9DbTEL/
   2. RICE. Some notes about prioritization
      1. https://www.xmind.net/m/tLEFpj/
   3. WSJF from SAFe. Let's prioritize right way
      1. https://www.xmind.net/m/ism9Dc/