via http://www.nickmilton.com/2015/07/lean-km-and-minimum-viable-product.html

via http://vi.sualize.us/what_customer_development_looks_like_we_love_lean_ux_lean_startup_infographic_picture_zbSu.html

via http://www.slideshare.net/ellengott/intro-toagilerequirementsagile2015ebg-gottesdieneraugust2015