Query-by-object interface for dynamic access and information requirement elicitation
ABSTRACT Information requirement elicitation (IRE) is essential in wireless Web service to elicit information requirements through interactive choice prompts. We present a high-level user interface for an IRE-enabled information system, in the context of database queries by a mobile Web user. The prototype is based on the notion of a query-by-object (QBO) approach of building a query using multiple user-level steps. The test prototype system uses the mobile information devices profile (MIDP) of the Java 2 Platform, Micro Edition (J2ME), for a wireless front end, and a Java 2 Platform, Enterprise Edition (J2EE) application server and an object-relational database management system (ORDBMS) at the back end. A sample set of dynamic queries demonstrates ease of use by the users.
Conference Paper: An advanced search system for learning objects[Show abstract] [Hide abstract]
ABSTRACT: This paper presents an advanced search system which enables end users to search for information stored in an e-learning system. Records in a database deployed in the e-learning system are mapped to the learning objects, which include problems, users, submission records, accepted solutions, contests (exercises), problem setters, and so on. The system employs a query-by-object (QBO) approach, where users do not need special knowledge of conventional SQL query writing. This paper presents a general overview of the e-learning system as well as the QBO approach for the system and its system architecture. Demonstration of the system and its usability are also discussed.Proceedings of the 13th International Conference on Humans and Computers; 12/2010
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ABSTRACT: An advanced search interface for mobile devices is presented. The search interface employs the query-by-object (QBO) approach which enables end users to obtain information in a database without using SQL. So far, the QBO approach has been employed in a number of applications. The aim of this research is to develop a visual user interface on mobile devices so that the users can more intuitively manipulate the objects for information retrieval. In this paper, the user interface, an algorithm of SQL generation, and the system architecture are presented. A framework to generalize the QBO approach with the interface for different databases is also considered.
Lecture Notes in Computer Science 01/2010; DOI:10.1007/978-3-642-12038-1 · 0.51 Impact Factor