Experiments and their Assessment

In this chapter, the authors give a description of the experiment setup consisting of experiment environment and performance measurement. They perform experiments on mapping XML document into relational database, building XML document from relational database, updating XML document stored in relational database, and retrieving document content from relational database using XPath expressions. These experiments will be done to check the scalability and effectiveness of the model. Then they compare their model with the (Tatarinov et al., 2002) and the Accelerating XPath model (Torsten et al., 2004). The comparison consist of four stages: mapping, building, updating, and retrieving, as most of other studies just took one or two stage and forgot the others. Some of them took retrieving, others took updating, and others took updating and retrieving, but most of them did not consider mapping and rebuilding.