Complete 9 pages APA formatted article: Role of Middleware in the App Integration in a Distributed Application Environment. When systems are not fully compatible, there is a delay in understanding and processing requests from one application to another. This delay can cause increase in queuing time and can lead to slower system response and the system can even crash. Middleware acts as a broker between different software applications in the form of coded request processing. This paper examines the importance and role of Middleware in distributed computing. A literature review and case studies with examples from Middleware implementations are analyzed. The findings indicate that Middleware is very important in modern distributed computing environment considering the huge variety of third party applications. The paper concludes that it would be very difficult to integrate the vast variety of applications without Middleware applications.