Java continues to be popular in the enterprise, despite competition from Microsoft's .NET. In 2003, Java usage increased from 72.2 percent of enterprises to 77.4 percent, with another 6.3 percent planning to use it within a year, according to a survey of 724 respondents by BZ Media. Bob Agamalian, manager of software development at First Consulting Group says the strength of his development team is in the Java J2EE technology stack and that using Java allows the team to integrate open-source software and projects, which hasten development or enhance the existing functionality of products. Enterprises use Java for several reasons, including its ease of use and its portability. In October 2005, use of Java continued to be greater than .NET, according to BZ Media. Over 68 percent of respondents reported deploying production systems that use Java, compared to 46.9 percent using .NET. The research indicates that some enterprises are using both platforms or take advantage of their interoperability. Some enterprises find that, while they may provide tools in Java, their customers prefer .NET, stating that Java is too slow. In 2002, the top application server was IBM's WebSphere. In 2005, IBM maintained a slight lead over JBoss, a product that users find to be very good. In December of 2005, however, the top development environment was Eclipse. Usage of Eclipse has been increasing steadily since its introduction in 2003.