Achievements

The new portal has been operating on-line since June 2006 (as shown in Figure 7). The portal

provides the front end integration for NTUH numerous systems by implementing the SSOS

strategy. In the diagram, for menu selections, well organized classifications as well as

grouping make the user navigate intuitively. The usage of dynamic, hierarchical DDNM

reduces menu clicks and prevents the menu bar scrolling. In addition, it is easier to

spontaneously maintain the URL links by simply managing the configuration files.

The portal implementation raises a performance issue. In the first version of DDNM, it

generates all function linkages every time (about 300). The server side program needs to

parse all configuration files as well as create all HTML and JavaScript codes. It takes about

10 seconds on average to display the portal main page. In order to solve the issue, the

DDNM second version has been designed and implemented by classified groups. The server

side program only needs to process the selected group configuration file each time. Under

the most complicated group, it takes approximately 2 seconds, on average, to render the

main page.