Design thinking follows four pillars: empathy, collaboration across disciplines, including every idea for evaluation, and repeating/iterating solutions while focusing on human needs. It involves empathizing with people's needs, collaborating with others from different backgrounds, including all ideas for consideration, and repeatedly testing solutions to refine them with user needs in mind. The design thinking process moves from defining a challenge to developing a solution in an iterative cycle between problem space and solution space. Various organizations approach design thinking through similar stages of empathizing, ideating, prototyping, and testing, while employing methods and tools to gather insights and generate ideas.