This explores "Job Theory" (Jobs to Be Done), a marketing concept where products and services are viewed as "workers" hired by customers to complete a specific "job."
A job is defined as the "progress a person wants to make in a particular situation." The theory emphasizes understanding the customer's situation and their desired progress, rather than just product features.
It introduces "job specs," which are the functional, emotional, and social elements needed to successfully complete a job. The text uses the successful launch of the FOEHN (フェーン) portable futon dryer as a case study, demonstrating how its design and marketing effectively addressed the customer's job of "daily comfortable sleep on a fluffy, clean futon" by overcoming the shortcomings of existing products.