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Object-oriented programming is the most successful programming paradigm. Relational database management systems are the most successful data storage components. Despite their individual successes and their desirable tight binding, they rely on different points of view about data entailing difficulties on their integration. Some solutions have been proposed to overcome these difficulties, such as Embedded...
By using UML (Unified Modeling Language) and ER (Entity Relationship) notations to describe a system, the specification of persistent and transient details became separated. UML and ER models use distinct notations, that cannot be checked for consistence, and therefore are not suitable to be used in a model driven development approach. This paper proposes a synergistic approach to persistence modeling...
Design pattern which is used appropriately can help us to establish perfect programs. In this paper, we research on the characteristics of the MVC pattern, analysis of the tightly coupled problem among each tier of the MVC pattern, propose a layered model to improve ERP architecture, present a feasible project application solution to improve the performance of J2EE. The experiment result s shows that...
On line analytical Processing (OLAP) systems have become increasingly popular in many application areas as they considerably ease the process of analyzing large amounts of enterprise data. Two major physical implementations exist today, relational online analytical processing systems (ROLAP) and multidimensional online analytical processing system (MOLAP). In this paper we present the object oriented...
Because more and more database application system is requested, it is necessary to find a fast and efficient development approach of database application system to meet actual needs. According to the software development methods based component/framework of object-oriented, A software development project that develops database application system using product line method is proposed this paper. The...
The conceptual level design for a complex Web based real life application demands high degree of simplicity and adaptability. In this paper an attempt has been made to propose a graph based data model for web application that can model the existing complex relations through a hierarchical layered structure in a simpler way. It ensures the high understandability from the designer's point of view. This...
Conceptual data models, being the tool of design databases, have been proposed. Information in real world application is often vague or ambiguous. Currently, less research has been done in modeling imprecision and uncertainty in conceptual data model. The UML (Unified Modeling Language), being a set of OO modeling notations and a standard of the Object Management Group (OMG), can be applied for many...
With the complexity of new products and equipment increasing, assembly and testing manufacturing production line's environment becomes more and more complicated. Simulation method is one of the most effective ways to analyze and improve task scheduling. Database technology and modeling are the foremost factor in building a simulation system. This paper in detail describes an approach based on object-oriented...
Distributed software systems are characterized by increasing autonomy. They often have the capability to sense the environment and react to it, discover the presence of other systems and take advantage of their services, adapt and re-configure themselves in accordance with the internal as well as the global state. Testing this kind of systems is challenging, and systematic and automated approaches...
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