The MIT Course Management System is called Stellar, which was originally developed to provide online support for existing MIT classes. In 2004, MIT became a founding partner of the Sakai project and later integrated Stellar with Sakai tools. This allows MIT classes on Stellar to take advantage of the many tools developed for Sakai. The integration was achieved by creating a "LaunchPortal" that maintains the Sakai user session and forwards requests to the appropriate Sakai tools while preserving the user experience. User and group integration was implemented, though authorization remains a challenge requiring custom extensions.

1. Using Sakai in Stellar at MIT Mark J. Norton, Nolaria Consulting Craig Counterman, MIT Mark Brown, MIT

6. Stellar 1 Architecture

9. Stellar Home Page

12. Stellar 2 Architecture

14. Request and Response Flow Stellar Tool Proxy Launch Sakai Tool Aggregator Request Response HTML Content Aggregated Content

17. LaunchPortal public class LaunchPortal extends HttpServlet { public String getServletInfo() public void init(ServletConfig config) throws ServletException protected void doGet(HttpServletRequest req, HttpServletResponse res) protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException protected void doError(HttpServletRequest req, HttpServletResponse res, Session session) throws IOException protected void doHome(HttpServletRequest req, HttpServletResponse res, Session session) protected void doTool(HttpServletRequest req, HttpServletResponse res, Session session, String toolId, String context, String toolContextPath, String toolPathInfo) throws IOException protected void forwardTool(ActiveTool tool, HttpServletRequest req, HttpServletResponse res, Placement p, String toolContextPath, String toolPathInfo) protected void showSession(PrintWriter out, boolean html) private void initSession (HttpServletRequest req, HttpServletResponse res, Session session, String context) }

24. JForum in Stellar