What is the basic framework of tourism destination marketing system?

The basic framework of tourism destination marketing system is to build a tourism destination marketing system that conforms to the development idea of smart tourism. It will play a great role in integrating tourism in the region and enhancing the overall image and competitiveness of tourist destinations. There are four brand structures in tourism destination marketing, namely single brand, parent brand, sub-brand, sub-brand, parent brand and multi-brand. The destination marketing system includes four related parts: virtual information space, virtual communication space, virtual transaction space and virtual relationship space.