----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
<p>
Technological improvements have enhanced our range of educational experiences with such things as distance-learning. The education systems of today are needed to be supported by new architectures for managing the courses, instructors, students, performance records, for grading  homeworks and exams, for supporting assessment, legacy systems, and security. 
<p>
<table bgcolor="LemonChiffon"><td>
We have developed a multi-tier architecture which integrates back-end tools and systems with commodity interfaces. 
<p>


Data at the back-end databases transformed into knowledge at the front-end browser through a hierarchical middle-ware using various object web technologies.
<p>
</td></table>

We implemented an asynchronous open information access environment.  This asynchronous resource  evolved  with the needs, <u>used to support traditional classroom and interactive
synchronous lessons offered using TangoInteractive</u>, reached a large audience, 450 users, including on-campus and on-line distance courses. This paper presents a technical architecture  overview and discusses its functionalities gained from our experiences.



<p>

--------------------------------------
<p>
1)
We have developed a multi-tier architecture which integrates back-end tools and systems with commodity interfaces. 
<p>


Data at the back-end databases transformed into knowledge at the front-end browser through a hierarchical middle-ware using various object web technologies.
<p>

2)
<p>
<table bgcolor="LemonChiffon"><td>

We have developed a multi-tier architecture which converts data from  back-end tools and systems  into knowledge in commodity interfaces through a hierarchical middle-ware using various object web technologies.  
<p>
</td></table>

3) a:
<table bgcolor="LemonChiffon"><td>
We have developed a multi-tier architecture which integrates back-end tools and systems with commodity interfaces using various object web technologies. 
</td></table>
b:
<table bgcolor="LemonChiffon"><td>
We have developed a multi-tier architecture which integrates back-end tools and systems with commodity interfaces through hierarchical middle-ware of various object web technologies. 
</td></table>

<p>

4)
 in synchronous and asynchronous learning
<p>

  to support traditional classroom and interactive synchronous lessons offered using TangoInteractive