Phenomenology and qualitative research

Since its inception, phenomenological philosophy has exerted an influence on empirical science. But what is the best way to practice, use and apply phenomenology in a non-philosophical context? How deeply rooted in phenomenological philosophy must qualitative research be in order to qualify as phenomenological? How many of the core commitments of phenomenology must it accept? In my talk, I will criticize the approaches of van Manen, Smith and Giorgi, and propose some alternative strategies.