A Database Prototype of Magnesium Alloy Based on Internet

In order to make full use of magnesium alloy resources under the environment of the network, an integrated magnesium alloy database system prototype has been developed, which consists of five modules, including database utilizing, files management, report printing, data inquiry and system utilities. This system gives more conveniences to user’s work by adopting three-tier architecture and using advanced technologies such as ASP (Active Server Pages). The user who only owns a global browser can conveniently use this database system without pre-installing any other application softwares. This database system prototype is a powerful tool to cut down the cost and time for developing new magnesium alloys.

Software Platforms for Mobile Programming

Java 2 Micro Edition (J2ME), .NET Compact Framework (.NET CF), and Active Server Pages .NET (ASP.NET) Mobile Controls are commonly used alternatives in mobile programming. They provide an environment for applications to run on mobile devices. However, they are different in many ways, such as supported mobile devices, architecture, and development. Hence, it is important for mobile application developers to understand the differences between them in order to choose the one that meets their requirement. Therefore, in this article we will discuss the general architecture of J2ME, .NET CF and ASP.NET Mobile Controls and compare the three alternatives.

The Performance of Web-based 2-tier Middleware Systems

The overall aim of this study is to determine the performance of selected web-based dynamic middleware systems that are used for designing and implementing dynamic web application systems. This is necessary in a world where more applications are moving to the web, and slow performance of such applications can discourage users, thereby reducing profit, and reduce programmers’ productivity and quality of applications due to slow testing and execution. Java Servlets, Java Server Pages (JSP), Microsoft Active Server Pages (ASP), and Personal Home Page (PHP) were used to perform some operations on the server, like retrieving all records from a database stored on the server. The time taken since the query is initiated from the browser, to the time the query result is displayed on the client browser were measured for each of the four middleware systems as an estimate for their performance. Records were increased in multiples of thousands to estimate scalability along with the performance. PHP proved to be more efficient and more scalable.