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How to improve XML web services performance?

XML has ability to enable data interoperability between applications on different platforms. For example, XML enhances e-commerce, communication between businesses, and companies' internal integration of data from multiple sources. XML use is thus increasing rapidly. However, XML's growing implementation raises a key concern: Because it provides considerable metadata about each element of a document's content, XML files can include a great deal of data. They can thus be inefficient to process and can burden a company's network, processor, and storage infrastructures. Goal of web service is to give wide support for loosely-coupled interactions. But, at the same time, web services decrease performance in favor of qualities such as readability and portability. Performance still matters and awareness of the performance costs of design decisions will benefit both practitioners and researchers alike. XML has been criticized for the overhead it introduces into the enterprise infrastructure. Business data encoded in XML takes five to ten times more bandwidth to transmit in the network and proportionally more disk space to store. This paper surveys the current issues and state-of-the-art regarding XML Web services performance. We discuss some bottleneck, and examine current and proposed solutions.