Final answer:
The responsibility for the development and welfare of workers in the craft system shifted from guild masters to factory owners and managers.
Step-by-step explanation:
The responsibility for the development and welfare of workers in the craft system varied depending on the time period and location. In the pre-industrial era, guilds played a significant role in regulating and supporting artisans. Guild masters were responsible for overseeing the training of apprentices and journeyman, ensuring quality standards, and protecting the interests of their members. However, with the rise of industrialization and the factory system, the responsibility shifted from guilds to factory owners and managers who pursued profit at the expense of workers' well-being.