We present a practical protection mechanism against SQL injection attacks. Such attacks target databases that are accessible through a web front-end, and take advantage of flaws in the input validation logic of Web components such as CGI scripts. We apply the concept of instruction-set randomization to SQL, creating instances of the language that are unpredictable to the attacker. Queries injected by the attacker will be caught and terminated by the database parser. We show how to use this technique with the MySQL database using an intermediary proxy that translates the random SQL to its standard language. Our mechanism imposes negligible performance overhead to query processing and can be easily retrofitted to existing systems.
Read the rest of this entry »

• 0 Comments

The Vision 7.1 Development Module is for engineers and scientists who are developing machine vision and scientific imaging applications. The development module includes NI Vision Assistant 7.1—an interactive environment for developers who need to quickly prototype vision applications without programming—and IMAQ Vision 7.1 for LabVIEW, LabWindows™/CVI™, and Microsoft Visual Basic—a library of powerful functions for image processing. In addition, the development module includes NI-IMAQ 3.0, the National Instruments driver software for controlling IMAQ hardware products.
Read the rest of this entry »

• 0 Comments

Graphical objects, also known as entities, are the visible objects (lines, circles, raster images, and so forth) that make up a drawing. Each graphical object has methods that allow an application to perform most of the AutoCAD editing commands, such as Copy, Erase, Move, Mirror, and so forth. These objects also have methods for setting and retrieving extended data (xdata), highlighting and updating, and retrieving the bounding box of the object. Graphical objects have typical properties such as Layer, Linetype, Color, and Handle. They also have specific properties, depending on their object type, such as, Center, Radius, and Area.
—ActiveX Automation User’s Guide, AutoCAD help file
Read the rest of this entry »

• 0 Comments

Facebook is one of the most popular Internet sites today. A key feature that arguably contributed to Facebook’s unprecedented success is its application platform, which enables the development of third-party social-networking applications. Understanding how these applications are installed and used is important for the function and utility of web-based online social networks, e.g. to better engineer them and/or to design advertising campaigns.
Read the rest of this entry »

• 0 Comments

This document outlines a chapter in the book Implementing Mobile Web 2.0 by Ajit Jaokar published by futuretext (Feb 2009). It is released separately as a stand-alone chapter. Here, we discuss the role of the next generation SIM (Subscriber Identity Module) card, referred to as SCWS (Smart card web server) SIM within Mobile Web 2.0. To explain the background, this document includes other sections from the book so that it becomes as complete document in itself.
Read the rest of this entry »

• 0 Comments

Most of the current methodologies for building ontologies rely on specialized knowledge engineers. This is in contrast to real-world settings, where the need for maintenance of domain specific ontologies emerges in the daily work of users. But in order to allow for participatory ontology engineering, we need to have a more realistic conceptual model of how ontologies develop in the real world. We introduce the ontology maturing processes which is based on the insight that ontology engineering is a collaborative informal learning process and for which we analyze characteristic evolution steps and triggers that have users engage in ontology engineering within their everyday work processes.
Read the rest of this entry »

• 0 Comments

Today you can buy dozens and dozens of books about learning objects (LO). The subject seems to be mature enough to be used widely in learning and teaching practice. But after the initial hype less than ten years ago, things have not gone as smoothly as expected. Why? Predictions were promising: LO repositories will create a market for learning content, this will reduce costs for instructional design, shorten the development time for e-learning courses, different instructors will be able to use the same materials.
Read the rest of this entry »

• 0 Comments

Web service has evolved continuously to the point where it is now shifting from a provider-oriented service to a user-oriented one. Internet users now evaluate the trustworthiness of information posted on the Internet, and share their knowledge more widely on that information. This trend is also applicable to education-related information services. Education information services will be able to provide new opportunities for the education sector once education providers accept this new trend in the web world, thus creating new and vital services. Web 2.0 is certainly facilitating this kind of change in the education service sector.
Read the rest of this entry »

• 0 Comments