Web assisted teaching: an undergraduate experience

The emergence of the Internet has created a number of claims as to the future of education and the possibility of dramatically changing the way in which education is delivered. Much of the attention has focussed on the adoption of teaching methods that are solely web-based. We set out to incorporate web-based teaching as support for more traditional teaching methods to improve the learning outcomes for students. This first step into web-based teaching was developed to harness the benefits of web-based teaching tools without supplanting traditional teaching methods. The aim of this paper is to report our experience with web-assisted teaching in two undergraduate courses, Accounting Information Systems and Management Accounting Services, during 2000. The paper evaluates the approach taken and proposes a tentative framework for developing future web-assisted teaching applications. We believe that web-assisted and web-based teaching are inevitable outcomes of the telecommunications and computer revolution and that academics cannot afford to become isolated from the on-line world. A considered approach is needed to ensure the integration of web-based features into the overall structure of a course. The components of the course material and the learning experiences students are exposed to need to be structured and delivered in a way that ensures they support student learning rather than replacing one form of learning with another. Therefore a careful consideration of the structure, content, level of detail and time of delivery needs to be integrated to create a course structure that provides a range of student learning experiences that are complimentary rather than competing. The feedback was positive from both extramural (distance) and internal students, demonstrating to us that web sites can be used as an effective teaching tool in support of more traditional teaching methods as well as a tool for distance education. The ability to harness the positives of the web in conjunction with more traditional teaching modes is one that should not be overlooked in the move to adopt web based instruction methods. Web-based teaching need not be seen as an all or nothing divide but can be used as a useful way of improving the range and type of learning experiences open to students. The Web challenges traditional methods and thinking but it also provides tools to develop innovative solutions to both distance and on campus learning. Further research is needed to determine how we can best meet the needs of our students while maintaining high quality learning outcomes

e-Process selection using decision making methods : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Information Systems at Massey University, Palmerston North, New Zealand

The key objective of this research is to develop a selection methodology that can be used to support and aid the selection of development processes for e-Commerce Information Systems (eCIS) effectively using various decision methods. The selection methodology supports developers in their choice of an e-Commerce Information System Development Process (e-Process) by providing them with a few different decision making methods for choosing between defined e-Processes using a set of quality aspects to compare and evaluate the different options. The methodology also provides historical data of previous selections that can be used to further support their specific choice. The research was initiated by the fast growing Information Technology environment, where e-Commerce Information Systems is a relatively new development area and developers of these systems may be using new development methods and have difficulty deciding on the best suited process to use when developing new eCIS. These developers also need documentary support for their choices and this research helps them with these decision-making processes. The e-Process Selection Methodology allows for the comparison of existing development processes as well as the comparison of processes as defined by the developers. Four different decision making methods, the Value-Benefit Method (Weighted Scoring), the Analytical Hierarchy Process, Case-Based Reasoning and a Social Choice method are used to solve the problem of selecting among e-Commerce Development Methodologies. The Value-Benefit Method, when applied to the selection of an e-Process from a set of e-Processes, uses multiple quality aspects. Values are assigned to each aspect for each of the e-Processes by experts. The importance of each of the aspects, to the eCIS, is defined in terms of weights. The selected e-Process is the one with the highest score when the values and weights are multiplied and then summed. The Analytic Hierarchy Process is used to quantify a selection of quality aspects and then these are used to evaluate alternative e-Processes and thus determining the best matching solution to the problem. This process provides for the ranking and determining of the relative worth of each of the quality aspects. Case-Based Reasoning requires the capturing of the resulting knowledge of previous cases, in a knowledge base, in order to make a decision. The case database is built in such a way that the concrete factual knowledge of previous individual cases that were solved previously is stored and can be used in the decision process. Case-based reasoning is used to determine the best choices. This allows the user to either use the selection methodology or the case base database to resolve their problems or both. Social Choice Methods are based on voting processes. Individuals vote for their preferences from a set of e-Processes. The results are aggregated to obtain a final result that indicates which e-Process is the preferred one. The e-Process Selection Methodology is demonstrated and validated by the development of a prototype tool. This tool can be used to select the most suitable solution for a case at hand. The thesis includes the factors that motivated the research and the process that was followed. The e-Process Selection Methodology is summarised as well as the strengths and weaknesses discussed. The contribution to knowledge is explained and future developments are proposed. To conclude, the lessons learnt and reinforced are considered

Objectives of financial statements: Selected papers

Committee members are: Cyert, Richard M.; Davidson, Sidney;Edwards, James Don; Gellein, Oscar S.;Parker, C. Reed;Reinhart, Andrew J.; Trueblood, Robert M.;Wagner, Howard O.;Weston, Frank T.

Algorithmic Techniques in Gene Expression Processing. From Imputation to Visualization

The amount of biological data has grown exponentially in recent decades. Modern biotechnologies, such as microarrays and next-generation sequencing, are capable to produce massive amounts of biomedical data in a single experiment. As the amount of the data is rapidly growing there is an urgent need for reliable computational methods for analyzing and visualizing it. This thesis addresses this need by studying how to efficiently and reliably analyze and visualize high-dimensional data, especially that obtained from gene expression microarray experiments. First, we will study the ways to improve the quality of microarray data by replacing (imputing) the missing data entries with the estimated values for these entries. Missing value imputation is a method which is commonly used to make the original incomplete data complete, thus making it easier to be analyzed with statistical and computational methods. Our novel approach was to use curated external biological information as a guide for the missing value imputation. Secondly, we studied the effect of missing value imputation on the downstream data analysis methods like clustering. We compared multiple recent imputation algorithms against 8 publicly available microarray data sets. It was observed that the missing value imputation indeed is a rational way to improve the quality of biological data. The research revealed differences between the clustering results obtained with different imputation methods. On most data sets, the simple and fast k-NN imputation was good enough, but there were also needs for more advanced imputation methods, such as Bayesian Principal Component Algorithm (BPCA). Finally, we studied the visualization of biological network data. Biological interaction networks are examples of the outcome of multiple biological experiments such as using the gene microarray techniques. Such networks are typically very large and highly connected, thus there is a need for fast algorithms for producing visually pleasant layouts. A computationally efficient way to produce layouts of large biological interaction networks was developed. The algorithm uses multilevel optimization within the regular force directed graph layout algorithm.Siirretty Doriast

A Methodology For Intelligent Honeypot Deployment And Active Engagement Of Attackers

Thesis (Ph.D.) University of Alaska Fairbanks, 2012The internet has brought about tremendous changes in the way we see the world, allowing us to communicate at the speed of light, and dramatically changing the face of business forever. Organizations are able to share their business strategies and sensitive or proprietary information across the globe in order to create a sense of cohesiveness. This ability to share information across the vastness of the internet also allows attackers to exploit these different avenues to steal intellectual property or gather information vital to the national security of an entire nation. As technology advances to include more devices accessing an organization's network and as more business is handled via the internet, attackers' opportunities increase daily. Honeypots were created in response to this cyber warfare. Honeypots provide a technique to gather information about attackers performing reconnaissance on a network or device without the voluminous logs obtained by the majority of intrusion detection systems. This research effort provides a methodology to dynamically generate context-appropriate honeynets. Administrators are able to modify the system to conform to the target environment and gather the information passively or through increasing degrees of active scanning. The information obtained during the process of scanning the environment aids the administrator in creating a network topology and understanding the flux of devices in the network. This research continues the effort to defend an organization's networks against the onslaught of attackers

Tentative set of broad accounting principles for business enterprises; Accounting research study no. 03

https://egrove.olemiss.edu/aicpa_guides/1148/thumbnail.jp

A performance comparison of specialised (industrial) and non-specialised real estate investment trusts in South Africa

There is a belief that anything that is specialised tends to outperform the diversified counterparts and this study investigates if this proposition applies in the property industry, specifically the REIT (Real Estate Investment Trust) market in South Africa (SA). The norm is to apply a quantitative methodology when assessing performance but this study follows a qualitative approach in comparing the overall performance between specialised and diversified REITs in SA using non-quantitative metrics. A mix of specialised and diversified REITs in SA were sampled and a multiple case study analysis was done after interviewing senior management in four REITs. A total of four interviews were done with five respondents across four cases. These cases were then analysed using thematic analysis. The respondents were asked questions relating to the REIT they are working for, industrial specialised and diversified REITs performance and the SA property market as a whole. The overall findings suggest that diversified REITs may outperform the specialised REITs in SA currently however, this conclusion depends on a lot of factors. These factors include the analysis time of reference, the economic status of the country (for example, recession), the size of the REIT, the company gearing level, how that specific sector is performing at that particular time relative to others and the management efficiency level. The growth of e-commerce plays a vital role as a factor as well because it is said to be replacing the brick and mortar retail industry therefore, its influence affects the specialised industrial sector performance. For further research, a similar study with a quantitative approach can be considered in order to add to the SA REIT body of knowledge. Furthermore, research on the performance of property companies before and after attaining REIT status could be investigated to determine the REIT status effect on the company. To add on to the SA REIT literature, performance between REITs in different sectors and provinces could be explored

O-CDIO : Engineering Education Framework with Embedded Design Thinking Methods

Technology and its applications have an ever-increasing role in our daily lives. Healthcare, logistics, commerce, manufacturing, and even social interaction, all have aspects of technology embedded in them. The complexity and importance of the technical systems we use varies, yet they are becoming increasingly versatile and more important to the functionality of entire systems and their services. At the same time, the complexity of understanding the future needs of the role that technology plays in such systems and what they are supposed to deliver varies from linear to chaotic. This has had a fundamental impact on the engineering profession. The more complicated, complex or even chaotic a system is, the more innovative and cooperative an engineer needs to be. Thus, engineers also need to understand people. This thesis presents a novel engineering education model, O-CDIO, which is based on an existing framework known as the CDIO framework. The O-CDIO model is derived from the results of the university level engineering education reform enacted in a multidisciplinary science university in Northern Europe, and from the scientific discourse within the domain of the engineering education research and literature. The timeline for the research was fall 2011 to fall 2015. The model that was developed emphasizes the need to educate engineers to become problem definers in addition to educating them to become problem solvers. This can be achieved by integrating human-centered design thinking methods and challenges into engineering courses from day one to graduation. The results of the piloted courses in the reform process show that transferable working life skills, such as communication, teamwork, problem-solving, prototyping skills, and tolerance towards ambiguity, were enhanced. These skills are widely seen as necessary for future engineering. The preliminary results also show that the courses provide an opportunity for self-discovery, increased self-efficacy, and result in an increase in entrepreneurial thinking. There were clear limitations to this research. The piloted courses had no control groups. The reflections on and comparisons of the results were achieved by considering the results of similar studies and the literature. Although some of the courses were run for three consecutive years, this research has very little longitudinal evidence. Future research should focus on implementation of the O-CDIO model as a whole, with longitudinal research set as one of its goals.Teknologian rooli maailmanlaajuisesti verkottuneessa teollisuudessa ja yhteiskunnassa on merkittävä ja ennustettavissa olevan tulevaisuuden ajan myös kasvussa. Se on myös enenevissä määrin sekä monimutkainen että moniulotteinen. Terveydenhuolto, teollisuus, koulutus, liikenne, ja internet, jopa sosiaalinen kanssakäyminen ovat esimerkkejä aloista ja ilmiöistä jotka ovat jollain tavalla riippuvaisia niiden sisältämän tekniikan toimivuudesta. Samaan aikaan teknologioiden ja tekniikan roolin ymmärtäminen sen eri konteksteissa on haastavampaa. Tekniikalla ei ole itsetarkoitusta. Sen tehtävä on aina palvella. Tämä asettaa uudenlaisia haasteita diplomi-insinööreille ja heidän kouluttamiselle. Tekniikan koulutus yliopistotasolla on maailmanlaajuisesti kyennyt vastaamaan sille asetettuihin haasteisiin. Tosin lähes poikkeuksetta muutos on syntynyt ulkoisen muutostarpeen aiheuttamana. Mitä monimutkaisemmaksi ja moniulotteisemmaksi tekniikalle ja teknologioille asetetut vaatimukset kehittyvät sitä monipuolisemmaksi pitää myös koulutuksen muuttua. Tämä tutkimus ja tieteellinen raportti perustuu suomalaisessa monialayliopistossa tapahtuneeseen tekniikan koulutuksen muutosprosessiin, tuloksiin sen aikana pilotoiduista kursseista ja alan kirjallisuuteen. Tutkimuksen tuloksena syntyi tekniikan koulutuksen malli joka johdettiin edellä mainituista tutkimuksen tuloksista, olemassa olevasta tekniikan koulutusmallista nimeltä CDIO ja kirjallisuudesta. Mallin ydinidea on kouluttaa diplomi-insinööreistä ongelmanhahmottajia ongelmanratkaisijoiden lisäksi. Tämä tapahtuu integroimalla ihmis- ja käyttäytymistieteisiin perustuvia opettamismetodeja läpi koko koulutuksen ensimmäisestä päivästä valmistumiseen asti. Reformin aikana tehdyt tutkimukset osoittivat että opettamismetodit saavuttivat niille asetetut oppimistavoitteet. Työelämätaidot kuten viestintä-, ryhmätyö-, ongelmanratkaisu- ja prototypointitaidot lisääntyivät. Alustavat tulokset myös osoittivat että opiskelijoiden reflektointikyky ja positiivinen suhtautuminen yrittäjyyteen lisääntyivät. Lisätutkimuksen tarve aiheeseen liittyen on ilmeinen. Tutkituissa kursseissa ei ollut mahdollista käyttää kontrolliryhmiä eikä O-CDIO mallia ole missään vaiheessa testattu kokonaisuudessaan. Lisäksi pitkän ajan vaikutuksia ei voitu tutkimuksen ajallisista kestosta johtuen testata. Pisimpään samanlaisena pysyneeltä kurssilta saatiin tutkimusaineistoa kolmelta eri vuodelta. Lisäksi tämän raportin kirjoittaja vastasi myös lähes poikkeuksetta tutkittujen kurssien ideoinnista, kehittämisestä ja opettamisesta. Tämä on otettu analyysivaiheessa huomioon mutta silti vaikuttaa tutkimustuloksiin. Luonnollinen lisätutkimuksen aihe on tutkia O-CDIO mallia kokonaisuudessaan todellisessa tekniikan koulutuksen kehyksessä ja riittävällä aikajänteellä.Siirretty Doriast