Web service represents a server that listens to requests through specific port over a network, processes those requests and sends responses to those requests. HTTP is application layer protocol that is used to transfer data between the client and the server. There are two types of web services: SOAP and REST. SOAP web services use SOAP protocol for data transmission, while REST web services use the REST architectural style, set of guidelines and restrictions to follow if a web service is to become a RESTful web service. XML and JSON formats are used to convey information. The practical parts of this paper will explain in detail the main parts, tools and technologies used in the customer management software solution. The software solution consists of a web service created in Java programming language, using Eclipse integrated development environment and APACHE CXF framework, rendering of web service is made using HTML, Bootstrap framework and Javascript scripting language.