The classic way for communication between database and applications is performed using ODBC (for standard applications) and DLL files (for distributed applications). The job of theses API's is to connect to database for sending and retrieving information. We introduce the WDBC pattern that is designed to do the same tasks but in addition, it guarantees the safety of data (by doing backup of database over the network) and can be integrated in an application that is created with different programming languages and running on different operating systems.