agile-development consommateurs consumersatisfaction customer-driven customer-empathy customerrelations design-thinking entrepreneurship hightechnologyindustries innovation iterative-process lean-startup market-fit minimum-viable-product newproducts problem-solving product-development product-discovery product-management product-roadmap product-strategy productionplanning produitsnouveaux prototyping qualityofproducts satisfaction technologicalinnovations user-centered-design user-research ux/ui-design