The present invention provides a way to validate data entry at both the client and the server with minimal engineering effort. The system allows the specification of data validation rules for a form on a server. The system provides a version of the rules with the form to the client computer. The system also executes the rules on the server for further validation. The system may translate the rules into JavaScript data structures, passed as the version to the client for client-side validation. Because the rules for the form are specific only once, there is no possibility of the rules becoming out of sync between the form on the client and on the server.
Managing and securing process flow. A network server receives user data and retrieves secured flow data from the user data. A user interface is rendered at the client in response to the user data. The flow data is based on a web request from the client and identifies the process flow and a position within the process flow. The request initiates the process flow on a data communication network and the user interface has a hidden form field that contains the retrieved flow data. The client posts user-supplied information in addition to the flow data via the user interface for verifying the web request.
