SYSTEM ANALYSIS FOR E-LEARNING GRIDS
Olumuyiwa Bamidele Alaba, Radu Dobrescu · 2009
Dezvoltarea sistemelor de e-learning a fost un domeniu ce a evoluat continuu in ultimii ani. Proiectarea acestor sisteme a fost bazata pe arhitecturi client-server, peer-to-peer sau mai recent pe servicii Web, cu unele limitari in scalabilitatea, disponibilitatea sau puterea de procesare si stocare distribuita. Aceasta lucrare incearca sa imbunataţeasca aceasta situaţie, aducândusi contribuţia prin propunerea unei analize de sistem in vederea proiectarii sistemului ţinând cont de etapele ciclului de viaţa al sistemului si definirea specificaţiilor precum si utilizarea reţelelor grid in contextul sistemelor de e-learning. Proiectarea sistemelor de elearning ţinând cont de specificaţii si standarde este prezentata in secţiunea 2 a lucrarii, in timp ce avantajele utilizarii arhitecturilor de tip grid sunt analizate in sectiunea 3. E-learning systems consist of complex activities and most of them have been designed based on client-server or peer to peer, and recently web services architecture. These systems have major drawback because of their limitations in scalability, availability, distribution of computing power and storage systems, as well as sharing information between users that contribute to these systems. In this context the use of grid technology reveals its utility and availability, as scalable, flexible coordinated and secure resource sharing among geographically distributed individuals or institutions, in the perspective of e-learning. The design of e-learning systems taking into account the specifications and standards is presented in section 2 of the paper. Section 3 reveals the advantages of using grid arhitectures for elearning systems.