Design thinking is a human centered approach to innovation anchored in understanding costumer's needs. Also is a term used to represent a set of cognitive, strategic and practical process by which design concepts are developed.
Stage 1 Empathize-Research your users' needs.
Stage 2 Define-State your users needs and problems.
Stage 3 ideate-challenge assumptions and create ideas.
Stage 4 prototype-start to create solutions.
Stage 5 test-Try your solutions out.