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Articles 631 - 652 of 652
Full-Text Articles in Engineering
Local Model Network Application In Control, Ruiyao Gao
Local Model Network Application In Control, Ruiyao Gao
Doctoral
The local model (LM) network is considered for the control of complex nonlinear systems. Both controller design and system analysis techniques are investigated for the Purpose of the development of an overall global controller with guaranteed stability and performance, based on the control methods and theories well developed for linear systems. In particular, the influence of the offset term of affine LM networks on the performance and stability of closed-loop systems is investigated. Assuming the system changes ‘slowly’ enough, an integrator can be utilised in the controller design by considering the offset term as ‘constant’. Gain-scheduled local controller (LC) networks …
Peer-To-Peer Searching And Sharing Of Electronic Documents, Paul Stacey
Peer-To-Peer Searching And Sharing Of Electronic Documents, Paul Stacey
Masters
Peer-to-peer systems have existed since the first incarnation of the Internet. In recent times the Internet has taken on a more hierarchical form, power has been taken away from the individual and placed in the hands of operators of large servers. However, with the re-emergence of p2p the individual is gaining more freedom. End users attached to the Internet now have the power to host and publish content through the user of p2p technologies. Peer-to-peer systems present significant design challenges and have opened up a floodgate of research in an effort to overcome some of the fundamental problems. This thesis …
Analysis Of Data Sets Using Trio Sonification, Charlie Cullen, Eugene Coyle
Analysis Of Data Sets Using Trio Sonification, Charlie Cullen, Eugene Coyle
Conference papers
Recent advances in technology have suggested that sound and audio play a far greater part in our daily working lives than ever before. Mobile phone ring tones are now based upon polyphonic music sequences that allow relatively complex audio to be generated from a handset by way of conveying information (i.e. a call or message is incoming). This real world example of sonification suggests that far more could be made of sonification techniques for analysis- particularly in the business environment. One advantage of sonification is its relatively hands free nature in that once a sequence is being played it does …
Orchestration Within The Sonification Of Basic Data Sets, Charlie Cullen, Eugene Coyle
Orchestration Within The Sonification Of Basic Data Sets, Charlie Cullen, Eugene Coyle
Conference papers
The use of sonification as a means of representing and analysing data has become a growing field of research in recent years and as such has become a far more accepted means of working with data. Existing work carried out as part of this research has focused primarily on the sonification of DNA/RNA sequences and their subsequent protein structures for the purposes of analysis. This sonification work raised many questions as regards the need for sequences to be set to music in a standard manner so that different strands could be analysed by comparison, and hence the orchestration and instrumentation …
Software Quality Revisited, Ronan Fitzpatrick
Software Quality Revisited, Ronan Fitzpatrick
Conference papers
Definitions of software quality have focused on software product quality factors. Quality that focuses on product quality is referred to by Kaoru Ishikawa as a narrow view of quality and he suggests that a broader more embracing and inclusive view is really necessary. The requirements of successful E-Commerce Web sites demonstrate this view. While the site might be considered as the product, Web site producers, owners and visitors also have a “quality” requirement. This broader view gives rises to the need to research and understand quality-of-development, quality-of-ownership, quality-of-engagement as well as quality-of-product. From the quality-of-product perspective, while many of the …
Software Quality Challenges., Ronan Fitzpatrick, Peter Smith, Brendan O'Shea
Software Quality Challenges., Ronan Fitzpatrick, Peter Smith, Brendan O'Shea
Conference papers
This paper sets out a number of challenges facing the software quality community. These challenges relate to the broader view of quality and the consequences for software quality definitions. These definitions are related to eight perspectives of software quality in an end-to-end product life cycle. Research and study of software quality has traditionally focused on product quality for management information systems and this paper considers the challenge of defining additional quality factors for alternative domains like the World Wide Web.
Turning An Articulated Truck On A Spreadsheet, Jim Mcgovern
Turning An Articulated Truck On A Spreadsheet, Jim Mcgovern
Articles
This paper describes how a standard office spreadsheet application was used to set up an engineering model for the simulation and analysis of the turning of articulated trucks
An Investigation Into Non-Verbal Sound-Based Modes Of Human-To-Computer Communication With Rehabilitation Applications, Ted Burke
Conference Papers
During the course of our work in the National Rehabilitation Hospital in Ireland we have encountered patients who, while unable to speak, are capable of making reproducible utterances. We present techniques used to harness such utterances, in addition to whistling, as a means of communication and control. A simple technique for identifying the phonemes /o/ and /s/ (in single-symbol ARPAbet notation) is presented with applications. The use of pitch variation as a means of controlling a continuously variable parameter is described with two applications - a microcontroller based light dimmer switch and a computer program which facilitates mouse pointer control. …
Managing Content-Initiated Application Delivery With A Client-Side Agent, Niall Roche, Gary Clynch
Managing Content-Initiated Application Delivery With A Client-Side Agent, Niall Roche, Gary Clynch
Conference Papers
Mobile devices have evolved with improvements in processing power and support for various application environments such as MExE [1]. Currently a large number of devices and platforms exist, each with various attributes. Such diversity results in problems providing appropriate applications to these devices. This paper outlines need for an integrated approach to application delivery for mobile devices. The solution allows suitable applications to be delivered to devices. Application management is removed from non-technical mobile device users through the presence of a client-side agent to manage the complexity of application provisioning, device resource management and application management.
Rhythmic Parsing Of Sonified Dna And Rna Sequences, Charlie Cullen, Eugene Coyle
Rhythmic Parsing Of Sonified Dna And Rna Sequences, Charlie Cullen, Eugene Coyle
Conference papers
Sonification allows existing mathematical data to be used as the model for audio output, notably that the audio produced is related to or representative of that data in some way. Existing work in the field has been largely focused on the aesthetic tailoring of the output audio for compositional benefit rather than as a framework for audio representation and analysis. It is the goal of this research to apply existing techniques for pitch substitution to an analytical method that seeks to define and represent patterns within existing data sets (primarily DNA and RNA sequences). It is often the case that …
Initial Experiences Gained And Initiatives Employed In The Teaching Of Java Programming In The Institute Of Technology Tallaght, Eamonn Hyland, Gary Clynch
Initial Experiences Gained And Initiatives Employed In The Teaching Of Java Programming In The Institute Of Technology Tallaght, Eamonn Hyland, Gary Clynch
Conference Papers
This paper describes recent experiences gained and initiatives employed in the teaching of Java programming to first and second year students in the Institute of Technology Tallaght from September 2000 to March 2002. It outlines some elearning, technological and pedagogical initiatives that were undertaken within the department and the resultant preliminary outcomes. The outcomes have been determined after detailed analysis of the results of a survey which was commissioned to determine the effectiveness of the initiatives and also to identify those parts of the Java language which were causing students particular difficulty. The students surveyed are currently completing their fourth …
Software Quality Strategic Driver Model (Sq-Sdm), Ronan Fitzpatrick
Software Quality Strategic Driver Model (Sq-Sdm), Ronan Fitzpatrick
Other resources
No abstract provided.
An Atm System Model And Wireless Channel Simulation, Karen Dunne
An Atm System Model And Wireless Channel Simulation, Karen Dunne
Masters
Congestion in the low frequency regions of the electromagnetic spectrum and demand for support of high bandwidth applications has prompted widespread investigations into networking technologies and communications media. Traditional networking technologies such as Ethernet that are not capable of adequately supporting high bandwidth applications (e.g. videoconferencing) are being replaced by high speed, high bandwidth technologies such as Asynchronous Transfer Mode (ATM). In the communications media market, wireless systems are becoming ubiquitous due to their ease of installation and maintenance costs. In this research, the networking technology of interest is ATM. ATM used a cell switching architecture that allows seamless support …
The Software Quality Star (Sq-Star), Ronan Fitzpatrick
The Software Quality Star (Sq-Star), Ronan Fitzpatrick
Other resources
Usability is a significant factor in the creation of quality software products which is an important focus of the software engineering syllabus. Usability is also a significant factor in the study of Human-Computer Interaction (HCI). Despite the connection, software quality and the rigours of the software engineering discipline are not used in the teaching of HCI and visa versa. Consequently, students undertaking software engineering courses are not fully exposed to usability issues and HCI students often miss out on the disciplines of software engineering. This paper presents a quality focused conceptual model - the Software Quality Star - which can …
An Investigation Into The Causes And Effects Of Legacy Status In A System With A View To Assessing Both Systems Currently In Use And Those Being Considered For Introduction, Patricia O'Byrne
Other resources
This dissertation analyses the area of legacy systems and determines the effects that are exhibited in legacy systems, presenting them in a legacy effect determination framework, so that management can ascertain whether the system they have is a legacy system. An analysis of legacy causal criteria is carried out, resulting in a table of legacy causes. A new definition of legacy systems is put forward, by defining legacy status as a status held by a legacy system. “A system exhibits legacy status if it is deficient in terms of its suitability to the business, its platform suitability or application software …
Using Xml To Network Distributed Analytical Instruments: Back To The Future?, Benjamin Jung, Damon Berry, Jane Grimson
Using Xml To Network Distributed Analytical Instruments: Back To The Future?, Benjamin Jung, Damon Berry, Jane Grimson
Conference Papers
There has been a paradigm shift in medical informatics standards in recent years from the message-oriented approach to a more distributed systems approach. However, despite all the early promise of distributed applications, they haven't been widely adopted in the health domain for various reasons. As a result, despite an increasing need for a standardised distributed solution for analytical laboratory instruments, many implementers of instrument interfaces are still using proprietary serial interfaces which do not support distribution. The emergence of the eXtended Markup Language (XML) specification in 1998 revived the fortunes of the messaged oriented methodology. This paper presents a partial …
A Process For Appraising Commerical Usability Evaluation Methods., Ronan Fitzpatrick, Alan Dix
A Process For Appraising Commerical Usability Evaluation Methods., Ronan Fitzpatrick, Alan Dix
Conference papers
Recent international quality standards and European Community legislation have identified new software quality factors. These new factors include suitability, installability and adaptability. Other quality factors need to be reviewed in the light of these developments. This has impacted on established commercial usability evaluation methods to the extent that it is appropriate to ask if these evaluation methods comply with the new standards and legislation. In order to answer this question the commercial evaluation methods need to be appraised (meta-evaluation) using a suitable method appraisal process. This paper describes such an appraisal process which specifically addresses the many considerations raised by …
A Corba-Base Integration Of Distributed Electronic Healthcare Records Using The Synapses Approach, Jane Grimson, William Grimson, Damon Berry, Gaye Stephens, Eoghan Felton, Dipak Kalra, Pieter Toussaint, Onno Weir
A Corba-Base Integration Of Distributed Electronic Healthcare Records Using The Synapses Approach, Jane Grimson, William Grimson, Damon Berry, Gaye Stephens, Eoghan Felton, Dipak Kalra, Pieter Toussaint, Onno Weir
Articles
The ability to exchange in a meaningful, secure, and simple fashion relevant healthcare data about patients is seen as vital in the context of efficient and cost-effective shared or team-based care. The electronic healthcare record (EHCR) lies at the heart of this information exchange, and it follows that there is an urgent need to address the ability to share EHCR's or parts of records between carers and across distributed health information systems. This paper presents the Synapses approach to sharing based on a standardized shared record, the Federated Healthcare Record, which is implemented in an open and flexible manner using …
Strategies For Evaluating Software Usability, Ronan Fitzpatrick
Strategies For Evaluating Software Usability, Ronan Fitzpatrick
Articles
This paper presents a usage analysis and taxonomy of methods which are used to evaluate the usability of computer systems. To accommodate the analysis and taxonomy, a matrix of strategies which can be used for effective usability evaluation is presented. Such an analysis, taxonomy and strategies support human-computer interaction (HCI) professionals who have the responsibility for ensuring computer system usability. The strategies outlined are named Virtual Engineering, Soft Modelling, Hard Review and Real World. This paper also uses a composite set of existing popular generic evaluation methods which can be used as part of these strategies. The methods used are …
Usable Software And It's Attributes: A Synthesis Of Software Quality: European Community Law And Human-Computer Interaction., Ronan Fitzpatrick, Catherine Higgins
Usable Software And It's Attributes: A Synthesis Of Software Quality: European Community Law And Human-Computer Interaction., Ronan Fitzpatrick, Catherine Higgins
Conference papers
Strategic managers and IS professionals who are responsible for specifying, acquiring and producing quality software products are not supported by the endless flow of new international standards, legislation and user requirements. In order to clarify the current situation for everybody concerned with software quality, and especially those interested in usability, there is a need for a new review and evaluation of the various strands that contribute to software quality. By way of review this paper recalls the original software quality factors which were defined twenty years ago by McCall et al. and presents a methodical analysis and synthesis of three …
Software Quality: Definitions And Strategic Issues, Ronan Fitzpatrick
Software Quality: Definitions And Strategic Issues, Ronan Fitzpatrick
Reports
This paper contains two sections relating to software quality issues. First, the various definitions of software quality are examined and an alternative suggested. It continues with a review of the quality model as defined by McCall, Richards and Walters in 1977 and mentions the later model of Boëhm published in 1978. Each of McCall's quality factors is reviewed and the extent to which they still apply in the late 1990s is commented on. The factors include, integrity, reliability, usability, accuracy, efficiency, maintainability, testability, flexibility,interface facility (interoperability), re-usability and transferability (portability). They are subdivided into external and internal quality factors. Interrelationships …
An Expert System-Based Approach To Hospitality Company Diagnosis, Andrew Balfe, Peter O'Connor, Ciaran Mcdonnell
An Expert System-Based Approach To Hospitality Company Diagnosis, Andrew Balfe, Peter O'Connor, Ciaran Mcdonnell
Conference papers
This paper describes the development of a prototype Expert System-based Analysis and Diagnostic (ESAD) package for the Hotel and Catering Industry. This computerised tool aids the hospitality manager in methodically scrutinising the hotel unit and environment, combining key information with systematic reasoning. The system searches through its extensive knowledge base, investigating complicated relationships. The number of possibilities considered is increased which will broaden the depth and breadth of the analysis and therefore should improve the quality of the managers decision making.