CAMP is a distributed application for bank officers. Its main function is opening and amending client data and client account data on back-end host system. As data should be validated before opening or amending, business rules on BizTalk Server that are used on client and server were developed. Client web application is made modular so if new fields are needed to be added in the future it will be possible with little effort. Data transactions on back-end host system are done by HIS (Host Integration Server) and WAVE London API.