一份软件工程的开发文档 关于机票预订 有详细的文档-A software development project document on the ticket reservations have detailed documentation

大公司软件设计文档，包括详细设计文档概要设计文档测试文档等，很全，很实用-Large companies software design documentation, including detailed design documents, test documents, design documents outline, very full, very practical