The PARSEC CEE is the primary achievement of several years of effort at NASA's Marshall Space Flight Center. The CEE was developed to allow engineers in the Advanced Concepts Department to rapidly prototype launch vehicle and spacecraft concepts.
Parsec provides a JSP 1.2 tag library and an API for developing rich web applications. MVC is supported with the Page Controller pattern, where requests go to JSPs; no XML config files. Client-side form validation supported by JavaScript code generation.