The applications of World Wide Web facilitated to get entry to diverse data available in different sources on the Internet. The success of the Web was somehow limiting because of poor discovering processes to find these data over Internet resources. For solving the shortcomings, some modifications were suggested into Web-based systems. The environment of Web was completely changed through these innovative modifications. For implementing interactive Web operations, traditional data has changed from static documents collection to dynamic intelligent data integrated over Webbased systems. The proposed modifications were implemented in the form of a pioneer technology called as Web services (WS). This paper presents a study conducted about Web services interactions, interoperability, architecture, operations and performance. The paper presents about architectural operations of Web services and how they are implemented to make Web services functional. It also highlights performance issues and entails the applied solutions. Web services are the fundamental elements of service-oriented systems to make them interactive and functionable.