Abstract
The main focus of this research is on Component Based Software Engineering (CBSE) and reliable generic connectors for the software components. An attempt has been made to describe n-tier architecture; in particular, data access architecture in a component based application. Having established this, an attempt has also been made to evaluate it against the external and internal quality factors. The work tries to establish that enhanced component model (ECM) is a reliable model. It also makes an attempt to express how data access objects (DAO) in the DAO layer interacts with the business-tier and data source in achieving reliable, reusable, robust and scalable component model by implementing Data Adapter interface. To establish these results, a case study has been carried out and it is found that the application so developed is scalable and robust as one can migrate from one data source to another using this quality model.
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