Vladimir Zanev

Wireless course management system

Wireless devices, such as smart phones and PDAs, are increasing in popularity due to the advantage of enhanced mobility and availability. In spite of the high increase in the availability of mobile devices, most of the wireless applications are in such areas as enterprise support, military, or gaming. Unfortunately, in the field of education, where online teaching and Web services are well accepted and adopted, wireless access to student records, course content, course registration, and other wireless Web services still is not available. This paper describes the analysis, design, architecture, and experimental development of a Wireless Course Management System that provides a wireless access to course information content.

SMMART: using context-awareness in m-commerce

A new class of m-commerce applications is emerging due to the unique features of handheld devices, such as mobility, personalization and location-awareness. We present SMMART, a context-aware, adaptive and personalized m-commerce application designed to deliver targeted promotions to the users of mobile wireless devices. Promotions distributed by SMMART are personalized by matching the users shopping interests to current promotions available at a retail site. SMMART adapts to changing interests of its user by monitoring his or her shopping habits. We describe a fully functional prototype of SMMART built for Pocket PCs running Windows CE with .NET Compact Framework. The main focus of the proposed demonstration is on the aspects of the user interaction with SMMART and its diverse features.

The Java 5 generics compromise orthogonality to keep compatibility

In response to a long-lasting anticipation by the Java community, version 1.5 of the Java 2 platform - referred to as Java 5 - introduced generic types and methods to the Java language. The Java 5 generics are a significant enhancement to the language expressivity because they allow straightforward composition of new generic classes from existing ones while reducing the need for a plethora of type casts. While the Java 5 generics are expressive, the chosen implementation method, type erasure, has triggered undesirable orthogonality violations. This paper identifies six cases of orthogonality violations in the Java 5 generics and demonstrates how these violations are mandated by the use of type erasure. The paper also compares the Java 5 cases of orthogonality violations to compatible cases in C# 2 and NextGen 2 and analyzes the tradeoffs in the three approaches. The conclusion is that Java 5 users face new challenges: a number of generic type expressions are forbidden, while others that are allowed are left unchecked by the compiler.

SMMART, a context-aware mobile marketing application: experiences and lessons

A new class of m-commerce applications is emerging due to the unique features of handheld devices, such as mobility, personalization and location-awareness. This paper presents SMMART, a context-aware, adaptive and personalized m-commerce application designed to deliver targeted promotions to the users of mobile devices. SMMART adapts to changing interests of its user by monitoring his or her shopping habits and guarantees the privacy of its users by not transmitting any personally identifiable information to the retailers. We describe our experiences of building and evaluating a fully functional prototype of SMMART implemented for Pocket PCs.