How can I do user research with a database of 100,000 users??

by gcn caroca   Last Updated May 14, 2019 21:16 PM

how could I start doing user research with such a large database ¿?,

the techniques that I want to occupy are:

-Focus Group -Interviews -Contextual Immersion

My doubt is how to start working with a large volume of user

thank you for your answers.

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