What is the specific difference between waterfall development and agile development?

Agile development, first of all, make the software prototype that customers are most concerned about, deliver it or go online, modify it in the actual scene to make up for the shortcomings in the demand, modify it quickly, and re-release the version. Re-online or delivery. Refining the story through some agile practices can provide smaller iterations. This cycle is repeated until the user (customer) is satisfied. Suitable for projects with uncertain demand, innovative projects or projects that need to seize the market.

Waterfall development needs clear demand. Everyone should make a plan step by step according to the requirements, strictly make all kinds of documents in the process of project operation, and follow the process step by step. This model is generally suitable for projects with clear needs and clear goals.

But generally speaking, in the process of project management, there is no strict agile or waterfall model, which is mixed with other methods. In the actual project process, it is meaningless to overemphasize the mode. What matters is whether the problem can be prevented and solved at the minimum cost after it happens. The model has played a more reference role.