open information channels, market research companies and field surveys.

1. Public information channels: Collect public business information through search, investigation and research, including official websites, industry reports, news reports, social media, etc. This information usually covers the basic situation, brand image, business strategy, market share and other aspects of chain enterprises.

2. Market research companies: Market research companies usually conduct in-depth investigation and research on specific industries or markets, and provide data and analysis reports. These reports can provide detailed information about the market size, competition pattern and consumer behavior of chain enterprises.

3. field investigation: field investigation is a direct way to obtain the location information of chain enterprises. By observing the passenger flow, surrounding environment and competitors of the target store, the commercial value and potential risks of the store can be evaluated more accurately.