What is the terminology of the tourist destination evaluation io model?

The tourist destination evaluation io model refers to a commonly used model for evaluating the attractiveness and influence of tourist destinations, where "io" stands for "Input-Output", that is, input and output.

1. Input: refers to the attraction factors and resources of a tourist destination. This includes scenic spots, natural environment, cultural heritage, hotel and restaurant facilities, transport and infrastructure, etc. These input factors are an important basis for attracting tourists to travel to a destination.

2. Output: refers to the economic and social benefits generated by tourist destinations. This includes tourism revenue, employment opportunities, local economic growth, social development and cultural exchange. The io model provides a method to evaluate the attractiveness and influence of tourist destinations by analyzing the relationship between inputs and outputs and their impact on the development of tourist destinations.