Briefly describe the relationship between the four concepts of tourism resources, tourism products, tourism development, and tourism planning.

Tourism development refers to the overall deployment of the development goals and implementation methods of the regional tourism system through tourism planning in areas with rich or developable tourism resources to promote regional economic development. Specific content includes tourism product planning, etc. . A tourism planning expert from the Vision Design Institute said: According to the actual situation of tourism planning preparation and implementation in various places, tourism planning is generally divided into three types: tourism development planning, tourist area planning and other special tourism planning. According to the spatial scale, it can be divided into three categories from large to small: regional planning, urban planning, and scenic spot planning.