Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.
This document provides good advice how to use semi-structured interviews by asking the right questions.
LEECH, B. L. (2002): Asking Questions: Techniques for Semi structured Interviews. In: Political Science and Politics: Volume 35 , 4. URL [Accessed: 30.06.2019]