HTML documents can return only static information, so the updated information cannot be communicated in real-time. On the contrary, information can be provided in real-time by using CGI and APIs peculiar to various Web Servers for the applications called from Web Browsers. These applications can dynamically return updated information related to the information input from Web Browsers. In addition to the information returned, the data processing procedure including the file input/output and database access, which is essential to the business application, can be requested (or executed) from Web Browsers.
COBOL is the business processing language used mainly for data processing, and dynamic Web pages can be created interactively by effectively using these features of COBOL.
Web applications are executed under the services of Web Servers. For the notes on creating or executing these types of applications, see NetCOBOL User's Guide.
