1,084 research outputs found
Quality assessment technique for ubiquitous software and middleware
The new paradigm of computing or information systems is ubiquitous computing systems. The technology-oriented issues of ubiquitous computing systems have made researchers pay much attention to the feasibility study of the technologies rather than building quality assurance indices or guidelines. In this context, measuring quality is the key to developing high-quality ubiquitous computing products. For this reason, various quality models have been defined, adopted and enhanced over the years, for example, the need for one recognised standard quality model (ISO/IEC 9126) is the result of a consensus for a software quality model on three levels: characteristics, sub-characteristics, and metrics. However, it is very much unlikely that this scheme will be directly applicable to ubiquitous computing environments which are considerably different to conventional software, trailing a big concern which is being given to reformulate existing methods, and especially to elaborate new assessment techniques for ubiquitous computing environments. This paper selects appropriate quality characteristics for the ubiquitous computing environment, which can be used as the quality target for both ubiquitous computing product evaluation processes ad development processes. Further, each of the quality characteristics has been expanded with evaluation questions and metrics, in some cases with measures. In addition, this quality model has been applied to the industrial setting of the ubiquitous computing environment. These have revealed that while the approach was sound, there are some parts to be more developed in the future
Investigating data synchronization in a mobile learning network with handheld devices
There were many successful Web-based learning systems built to enhance the effectiveness of institutional teaching over the past decade. Students were benefited in two major aspects: asking questions to their course instructors, and downloading relevant course materials only when Internet/Intranet access is available. Recently, handheld devices integrated with the latest wireless technology are becoming popular. Thus, it is foreseeable that such learning facilities may move beyond the boundary of fixed network connections one day. We considered an interesting proposal to mobilize conventional Web-based learning systems with the integration of handheld devices, and pioneered its prototype implementation in the University of Hong Kong. Besides getting encouraging students' feedbacks, we gained invaluable experience of combining frontier technologies such as the Conduits and Web server technology to solve the data synchronization problems of students' questions distributed among the 'local' databases of handheld devices and the centralized database server.published_or_final_versio
Mobile Geographical Information System: Using Personal Digital Assistant to Monitor Vehicle Navigation
Geographic analysis has been around longer than maps; probably back thousands of
years when early humans planned hunting and movement. Perhaps the first GIS were
scratches in the dirt or sand. Traditionally, highly skilled cartographers spent many
hours drawing maps, and map users labored over the analytical tasks. Modern GIS
arrived when computers became powerful, easier to operate, more affordable, and
generally available to many users. Technology has created many changes, including
geography, data, and methods of analysis. Modern GIS is a new paradigm, even more
so when Modern GIS goes mobile. The rapid growth in mobile telecommunications and
internet business is living proof of a radical change in today's information society and
infrastructure. The current phase in this development is the continued increase in total
mobility with wideband services. This paper explores GIS in the mobile environment
using commercial-off-the-shelf (COTS) components. It sees the research on GIS,
focusing on GIS in mobile environment. It presents the ideaof applying GIS concept in
vehicle tracking, where mobile GIS will couple up with GPS as a vehicle movement
monitoring tool. The Reuse-Oriented Development Model is used as guidance for the
project progress. The methodology is suitable as it stresses on component reuse. It
encourages timely completion of the project. A simulation of vehicle tracking and
navigating concept would be presented as the findings of the research. The simulation
presents the idea of real-time tracking of a moving vehicle using data output from the
GPS.
Bi-Directional Information Exchange with Computing Handheld Devices
The Bi-Directional Information Exchange with Handheld Computing Devicesz\u27 project introduces two new concepts: dynamic digital receipts and personal data warehousing. Dynamic digital receipts means digitalizing paper transactions generated from points of sale. Personal data warehousing means organizing and collecting data for later viewing and analysis. The consumer will be able to use a handheld device such as a cell phone or PDA to receive and store a transaction in XML format. Later on, the user can upload the receipt through a web application to a personal data warehouse for storage or management of receipts. The web interface also allows users to export the receipts to money management software. The digital receipt is transferred from the point of sale to the handheld device using Bluetooth technology. The implementation of the digital receipt concept will allow users to manage their receipts and store them neatly without restrictions on manipulating their own data
Examination Result Retrieval via Short Messaging Service (SMS)
Short Message Service (SMS) provides a mechanism fortransmitting short messages
to and from wireless devices. Therefore, the aim ofthis project is to develop a system
thathascapability in handling the University of Technology PETRONAS (UTP)
examination result request from the students Currently, two methods usedfor the
students to retrieve their exam result which are through mail and online. Failed to
retrieve examresult via mail always occurred. By using Internetapplication, it
requires the student presence orthe availability. Besides, busy network traffic affects
student difficulties in accessing the page. Fivephases usedto develop this project.
There were initiating and project planning, datagathering andanalysis, developing,
testing and result analysis.
Theevaluation of this prototype hasbeen categorized intotwo, userperception and
system developer perception. From the result derived from the userperception,
81.67% of respondents agree this system is easy to monitor andefficient. Therefore,
this exam result retrieval will use the functionality ofSMSin order to deliver
examination result to UTP's student. As a conclusion, this project is successfully
develop and provide one ofthemost convenient method for the student to retrieve the
result as most ofthe students do have a mobile phone with SMS capability
Mobile Library
Wireless application system and application has large potential due to the very personal
and intimate nature of the device and high targeting possibilities. Due to rapid
advancement of advertising and informing technologies recent years, the concepts and
such applications have been significantly extended. This research will look deeply into
the acceptance level of implementing the wireless system at the defined area. In this
project the application and the function of advertising on mobile device has been
modified to another alternatives that can enhance the environment surrounding us. This
project is basically will be functioning as a reminder system. This system will establish
the connection between the server and the Personal Digital Assistants (PDAs). The
system will deliver location-aware of information that allows the transition info from the
server to the PDAs using WiFi pull-based technology. The objective of this system being
developed is to enhance the idea and the technologies of wireless nowadays which
definitely can be implemented in various ways later on. In this project, several techniques
have been used starting with ideas and information research and gathering that have been
done through journals, existing paper work, and previous systems that create by previous
students. This report covers the background study, literature review and theory based on
research, and also methodology used in research and design phase. In research,
questionnaire is used to gather information pertaining to user preferences. Meanwhile, in
design phase, the methodologies will be explained more in chapter three (3). The lasttwo
part of this report covers result and discussion from the research and testing phase, and
also recommendation for future work.
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Using mobile computing for construction site information management
PhD ThesisIn recent years, construction information management has greatly benefited from
advancesin Information and Communication Technology (ICT) increasing the speed of
information flow, enhancing the efficiency and effectiveness of information
communication, and reducing the cost of information transfer. Current ICT support has
been extended to construction site offices. However, construction projects typically take
place in the field where construction personnel have difficulty in gaining access to conventional information systems for their information requirements. The advances in affordable mobile devices, increases in wireless network transfer speeds and
enhancements in mobile application performance, give mobile computing a powerful
potential to improve on-site construction information management.
This research project aims to explore how mobile computing can be implemented to
manage information on construction sites through the development of a framework.
Various research methods and strategies were adopted to achieve the defined aim of this
research. These methods include an extensive literature review in both areas of
construction information management and mobile computing; case studies that
investigate construction information management on construction sites; a web-based
survey for the investigation of the existing mechanism for on-site information retrieval
and transfer; and a case study of the validation of the framework.
Based on the results obtained from the literature review, case studies and the survey,the developed framework identifies the primary factors that influence the implementation of mobile computing in construction site information management, and the inter relationships between those factors. Each of these primary factors is further divided into sub-factors that describe the detailed features of relevant primary factors. In order to explore links between sub-factors, the top-level framework is broken down into different sub-frameworks, each of which presents the specific links between two primary factors.
One of the applications for the developed framework is the selection of a mobile
computing strategy for managing on-site construction information. The overall selection procedure has three major steps: the definition of on-site information management objectives; the identification of mobile computing strategy; and the selection of appropriate mobile computing technologies. The evaluation and validity of the selection procedure is demonstrated through an illustrative constructions cenario
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Proximity-based systems: Incorporating mobility and scalability through proximity sensing
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis argues that the concept of spatial proximity offers a viable and practical option for the development of context-aware systems for highly mobile and dynamic environments. Such systems would overcome the shortcomings experienced by today’s location-based and infrastructure dependent systems whose ability to deliver context-awareness is prescribed by their infrastructure. The proposed architecture will also allow for scalable interaction as against the single level of interaction in existing systems which limits services to a particular sized area.
The thesis examines the concept of spatial proximity and demonstrates how this concept can be exploited to take advantage of technological convergence to offer mobility and scalability to systems. It discusses the design of a proximity-based system that can deliver scalable context-aware services in highly mobile and dynamic environments. It explores the practical application of this novel design in a proximity-sensitive messaging application by creating a proof-of-concept prototype. The proof-of-concept prototype is used to evaluate the design as well as to elicit user views and expectations about a proximity-based approach. Together these provide a valuable insight into the applicability of the proximity-based approach for designing context-aware systems.
The design and development work discussed in the thesis presents a Proximity-Sensitive System Architecture that can be adapted for a variety of proximity-sensitive services. This is illustrated by means of examples, including a variety of context-aware messaging applications. The thesis also raises issues for information delivery, resource sharing, and human-computer interaction.
While the technological solution (proximity-based messaging) offered is only one among several that can be developed using this architecture, it offers the opportunity to stimulate ideas in the relatively new field of proximity and technological convergence research, and contributes to a better understanding of their potential role in offering context-aware services
Heart Failure Monitoring System Based on Wearable and Information Technologies
In Europe, Cardiovascular Diseases (CVD) are the leading source of death, causing 45% of all deceases. Besides, Heart Failure, the paradigm of CVD, mainly affects people older than 65. In the current aging society, the European MyHeart Project was created, whose mission is to empower citizens to fight CVD by leading a preventive lifestyle and being able to be diagnosed at an early stage. This paper presents the development of a Heart Failure Management System, based on daily monitoring of Vital Body Signals, with wearable and mobile technologies, for the continuous assessment of this chronic disease. The System makes use of the latest technologies for monitoring heart condition, both with wearable garments (e.g. for measuring ECG and Respiration); and portable devices (such as Weight Scale and Blood Pressure Cuff) both with Bluetooth capabilitie
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