Theses

Permanent URI for this communityhttps://rda.sliit.lk/handle/123456789/2429

Postgraduate students are required to submit a thesis as part of fulfilling the requirements of their respective postgraduate degree programmes. This community features merit-based graduate theses submitted by SLIIT postgraduate students. Abstracts are available for public viewing, while the full texts can be accessed on-site within the library.

Theses and Dissertations of the Sri Lanka Institute of Information Technology (SLIIT) are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License .

Browse

Search Results

Now showing 1 - 10 of 24

Open Access
The Role of Social Capital and ICTs in Inter-Organizational Collaboration in a Developing Economy: An Empirical Study of the Finance Industry in Sri Lanka
(Curtin University, 2017-09) Nawinna, Dasuni Priyanwada
In the contemporary world of business, organizations cannot rely solely on their internal strengths to survive. Forming inter-organizational partnerships is becoming one of the most popular strategies available to an organization to share risks, resources and other capabilities with partners. Collaborative business strategies are especially beneficial in the emerging economies where organizations are constrained with lack of resources, technology, skills and infrastructure. Accordingly, explaining why and how some organizations do better in inter-organizational relationships (IORs) than others is a dominant challenge in the study of IORs. Social capital (SC) is an influential concept in understanding why and how some organizations do better in inter-organizational relationships. It is recognized as an important factor in developing relationships of trust, forming the foundation for greater collaboration and successful collective action. Social capital is a multi-dimensional, relational concept that turns into a powerful tool when combined with the network analysis approach and tools to study inter-organizational relationships such as alliances and joint ventures or collaborations of any form. While social capital has been found to support different firm-level value creations, such as creation of intellectual capital, resource exchange, innovation, knowledge sharing and performance, it has significance as the basis for the development of stakeholder relationships, which are essential to Corporate Social Responsibility (CSR). CSR is touted as a key enabler of both organizational performance and of sustainable development, which are also essential for developing economies. Information Systems (IS) researchers have increasingly become interested in exploring social capital in relation to Information and Communications Technologies (ICT). It is evident that social capital and ICT are mutually complementary in the interorganizational-level. While the role of social capital in the development or acceptance of ICTs and the role of ICTs in the formation of Social Capital is widely explored, the combined effect of SC and ICT on the IOR in developing contexts remains unexplored. Very little is known about the effect of ICT enabled Social Capital in the inter-bank context. The aim of this empirical research is to develop a model of how ICT-enabled social capital affects inter-bank strategic collaboration in a developing context, Sri Lanka. The purpose of this study is to investigate how the multiple dimensions of social capital influence the strategic collaboration in the Sri Lankan banking context, and the enabling role of ICTs. In order to accomplish this objective, the researcher uses quantitative techniques, the structural modelling approach combined with network measurements. Data is gathered through a survey of high-level management of banks and from public sources such as annual reports and web sites. The network analysis tools (e.g. ORA) and the statistical analysis methods (PLS-SEM) and tools (e.g. SmartPLS) have been used to derive results. The results of this study suggest that structural, relational dimensions of social capital have a positive influence towards the degree of strategic collaboration of banks. It is also evident that higher ICT capabilities at the firm-level strengthen the effect of cognitive social capital on collaboration. The results of the other moderation tests indicate that firm-size, age, gender-ratio of directors, ownership, geographic spread, culture, organization structure and previous experience strengthen the effect of social capital on strategic collaboration. The results of further analysis indicate that the structural social capital is influential for the corporate social responsibility of banking organizations. Both the inter-organizational collaboration and the corporate social responsibility yield higher financial performance at the firm-level. The study also provides evidence that the use of network measurements as the indicators of social capital provides better predictability in comparison to regular indicators. These findings provide a valuable contribution to the theory of social capital, literature on ICT for development and and network theory, contributing to a more holistic perspective that incorporates social, technical and organizational aspects and provides insights useful for building effective strategies in similar developing contexts.
Open Access
Realtime line parameter estimation using synchrophasor measurements and impact of sampling rates
(Wichita State University, 2016) Hettiarachchige-Don, A. C. S
The installation of synchrophasor measurement units within the electrical grid system have provided utilities with the ability to monitor their transmission system in real time. These real time observations allow for better situational awareness and rapid responses to adverse system conditions. However, the real time impedance of the powerline is not one of the parameters that is transmitted to the control center and therefore, has to be calculated using the data received from multiple devices. This thesis proposes a simplified methodology for this analysis that requires lower computation power in comparison to most other proposed estimation techniques. Hence, this methodology is able to produce accurate results faster and by using a smaller quantity of stored data. Due to these reasons, this methodology can be implemented to provide near real time estimation and reporting of impedance values. For the purposes of this research, only the reactance information will be calculated but a similar approach can be used to obtain resistance information as well. The methodology consists of an algorithm to calculate and estimate the reactance of a line using the reported PMU data. It includes an outlier detection and elimination algorithm as well as a denoising technique that makes use of regularized least square estimation to accurately estimate the reactance over the analysis period. The methodology proposed is tested using real synchrophasor measurement data from a utility provider. The proposed mythology can easily be adapted and applied for the estimation and calculation of other parameters using PMU data.
Open Access
Investigating the enabling role of web 2.0 technology for interactive e-learning in australian and sri lankan higher education
(RMIT University, 2015) Karunasena, A
Interactions are at the heart of e-learning as they enable learners to actively develop knowledge, acquire skills and develop the sense of belonging and satisfaction. Much attention is paid on developing interactive e-learning systems for facilitating active interactions between learners and learning resources, instructors and peer learners. Numerous technologies such as simulation technology and Web 2.0 technology are used to facilitate interactive e-learning to date. Those technologies support learners to interact with learning resources, instructors and peer learners to different extents. To facilitate interactive e-learning, it is important for educators and e-learning developers to understand how well technologies as above support interactions in e-learning. Web 2.0 technology has become popular around the world recently due to their ease of use, portability and high availability. Much research has been done on how Web 2.0 technology could be used for interactive e-learning. Existing research, however, has several limitations. For example, a majority of research has investigated how a specific Web 2.0 tool supports a specific kind of interactions in e-learning such as learner-learner interaction. Furthermore, much of existing research on Web 2.0 based interactive e-learning is conducted in developed countries. Whether Web 2.0 technology supports interactive e-learning in developing countries in a similar manner to developed countries, or whether developing countries could learn lessons from developed countries on using Web 2.0 technology for interactive e-learning are, therefore, not clear. This research aims to investigate the enabling role of Web 2.0 technology for interactive e-learning in higher education in Australia, a developed country and Sri Lanka, a developing country. To meet this aim, a quantitative research approach is adopted. Following this research approach, a conceptual framework on Web 2.0 based interactive e-learning developed based on a comprehensive review of the relevant literature, is validated using the survey data collected from learners in universities in Australia and Sri Lanka. The validation of the conceptual framework reveals that Web 2.0 technology supports the three major types of interactions in learning, namely, learner-learning resources, learner-instructor and learner-learner interactions in both Australia and Sri Lanka to a great extent. Furthermore, no significant differences are found on how Web 2.0 technology supports interactive e-learning in the above countries. The implication of these findings is that Web 2.0 tools could be used to improve the interactivity of e-learning. Another implication of this research is that new and more interactive e-learning systems can be developed by using Web 2.0 technology, in particular, for the purposes of managing learning resources, managing personal knowledge, delivering instructional support and collaborating in order to improve the effectiveness of e-learning. From a practical perspective, this study presents an in-depth investigation of how Web 2.0 technology can be used for improving the interactivity of e-learning in Australia and Sri Lanka. It also provides specific guidelines for developing interactive e-learning environments using Web 2.0 technology. From a theoretical perspective, this research finds that Web 2.0 technology could be used in developing countries and developed countries to improve the three major interactions in e-learning.
Open Access
lOT enabled Recognition based attendance Management System
(2018) Swarnakantha, N.H.P. Ravi Supunya
Attendance management is a very important task for each and every university or an institute. Most of institutes doing this attendance marking manually and it is time-consuming as well as it many causes to many errors. Therefore, r searchers tried to come up with automated attendance systems as a result of this issue. Researchers developed different systems using finger print technology, radio frequency identification (RFIO) and face recognition. Many of them used those technologies separately but it is not suitable for places like education in titutes. The purpose of the following research is to design and develop a new system using different technologies together and enable the internet of things to the system. So, this system uses face recognition and radio frequency identification t gether to come up with a proper solution. The system is using an online MySQL database to store entire data of the system. Python is used to program the system and Open CV is used for face recognition. One main finding of the research is to identify the student with different angles of face after getting the RFIO tag value. When getting attendance, the stude t should place his or her RFIO tag on the reader and then the system identifies the student with the tag value. The system then retrieves student's registration details and start compare student's face with sa$faces of that student. If the system identifies the student, then it checks for the subject's time slot to ensure that the student comes to the correct class. If all of them are correct, the system marks attendance for the student and sends a .notification email to the student so the student can know his or her attendance marked successfully for the class. There IS a web application also developed to register courses and subjects on the system and to view attendance details
Open Access
Analysis of Human Interpretability in Document Classification
(2018) Kumari, P.K.Suriyaa
With high use of computers, the collection of textual data generated, exchanged, stored and accessed increased in massive amount and became one of the richest sources of data for the organization. As a result, people are tending to use natural language processing application to categorize this large volume of data efficient and accurate manner. Their application of machine learning models. When it comes to Natural Language processing (NLP) applications where most of them follows supervised learning techniques, automatic document classification models developed to do content-based assignment here the materials are assigned into predefined categories. This makes it easier to find the relevant information at the right time and for filtering and routing documents directly to correct users. Mostly these learning models are operating in black-box manner wh re there is no way to interpret how the model has decided which class an instarce should assigned. understanding the reason behind how learning makes these redictions ~7 are very important to trust such learning models in real application. [his thesis presents the work related to the experimental work been carried with set of text classifiers to interpret text classifiers predictions, so any classifier can be evaluated based on how well they support classification purpose.
Open Access
Perception of Adapting E-Paper Environment for the Universities of Sri Lanka
(2018) Ekanayake, Hiran Chathuranga
Normally in Sri Lanka, people in state and non-state organizations use two categories of paperssuch as papers and e-papers for their multiple official activities like recruitment urposes, financial purposes, inventory purposes and etc. Mostly in Sri Lanka we can identified highest paper using state organizations as Department of national archives, parliament, courts omplex andetc. In universities, use a large number of papers for photocopies, printouts in thei . day-to day academic and administrative purposes like curriculum purposes, lecture purpos s, exam purposes, student's registration purposes, staff recruitment purposes and etc. In most of the universities, Human Resources division and the Student Establishment Division are th highest paper usage divisions. Today paper based systems of universities can be seen to creat lots of difficulties like wastage of paper, higher stationary cost, most time consuming, labor cost and etc. Nowadays, the usage of digital technology and e-paper usage is rapidly g ining a momentum in the fields of administration, academia, and students in most of the universities in the world. Every university provide internet facilities in higher bandwidth to the s aff and students as well. Therefore it seems that moving to e-paper systems is the most conven ent and practical method to solve mentioned difficulties of paper waste in universities of Sri Lanka. Consequently, this study measured the perception of adapting an e-paper environment and also focused on investigating the factors that influence the usage of e-paper environment in Sri Lankanuniversities. This study was done with a quantitative research approach with the help of a structured questionnaire which was answered by 198 of academics, non-academics and, administrative staff in the Human Resource division, Students Establishment Division a d other divisions, departments, faculties of state and non-state universities in Sri Lanka. The results showed that IT knowledge of the user and user's willingness are the most important factors to adaptation e-paper environment to the universities of Sri Lanka. Currently, people in state and non-states universities are willing to use e-paper technology. The e-paper environment concept requires technological and behavioral changes in the Sri Lankan universities. Consequently the study proved that e-paper concept is most convenient technology to today's universities.
Open Access
Identify and Evaluate Factors Affecting Good Agriculture Practice Farmers to Sell Their Products Directly in Sri Lanka
(2018) Wakista, S.E.
Diffusion of information communication technologies in remote areas of Sri Lanka is playing an important role for the improvement of agriculture activities. Today it can be emphasized that technology is becoming affordable in Sri Lanka and people who wish to acquire it can do so including low income segment of farmers. Farmers can communicate using these devices to get a good price for their produce from buyers on real time basis. Mobile service providers provide smartphones with bundled tariff packages to the customers where one can pay the monthly bill with commitments for a defined period as instalrnents. Few mobile based information dissemination systems (Mobile Apps) are available in Sri Lanka. The mechanism proposed in this research is to make sure best market price for farmers with the use of existing and advancing K'T applications. The main objectives of this study were to 1.) Identify the factors hindering the GAP farmers to sell their products directly. 2.) Evaluate most significant factors which are affecting the direct sale. 3.) Suggest a solution to facilitate GAP farmers to sell produce directly in the market, focusing on factors that affect by analysing the results arising from the survey. Literature review based on the investment capacity 0' farmers, literacy levels, access to market information, finding buyers, technology usage in rural ~~ area and awareness of farmers to avoid the difficulties that would be enco ntered by the farmers possibly with market players like so-called middleman. The expected plan under the proposal is to obtain the information of their produces from GA farmers using quantitative research method, to analyse the data collected and to decide a reasonable price for the produce
Open Access
Challenges associated with the adoption of agile project management practices for software development
(2018) Nadarajah, Nadarajah
While human dependence on software continues to rise at a rapid pace, the demand for software itself surpasses the human ability to produce it despite massive advancements in the software engineering discipline. The emergence of Agile methodologies: a modern version of the traditional methodologies, have proven to significantly contribute towards increased software project success rate . This study presents the results of a survey study for determining factors that challenge adoption of agile project management methodologies for software developme t within the context of Srilankan software development projects thus also presents recommendations to ensure successful agile adoption. The survey was conducted among professionals who practice agile methods and who had experience practicing traditional (plan-based) software development approaches in t e past, or professionals who were currently working on the transformation from traditional to agile-based approaches. A web survey was employed to gather responses, collecting data from 59 Agile professionals in Sri Lanka. The findings support only 2 out of the 7 hypotheses, revealing two challenging factors for the adoption of agile methodologies in Srilankan software development projects. The findings of this ~~ research help professionals identify factors that challenge agile doption in Srilankan software development projects, and urges them to address these challenges in order to ensure successful agile adoption. Agile adoption improves project success rates and leads to an increase in the growth rate of t e Srilankan IT/BPM industry, ultimately contributing to the economic growth of the country. Limitations of this study are also discussed along with directions for fut re research in this domain.
Open Access
Analyse the barriers to use Web-based Content Management Systems (CMS) in Sri Lankan IT Organizationsx`
(2018) Kuruwitaarachchi, Nuwan
The content management system is single software or combination of interrelated programs used to build and handle digital content. The early days' static websites were able to assure customer needs. Even th ugh due to technology enhancement, change of customer requirements and buying p tterns static websites have been obsolete and unable to fulfil customer requirements Therefore, organizations needed more interactive websites to establish the business. Nowadays the general public has a tendency to move to online buying since it has numerous advantages. Hence an organization needs to organize and manage the huge amount of d ta properly. Consequently, the requirement of a web content management system increasing e ormously. In traditional web development HTML, ASP.NET, PHP, Java scripts, etc. were used to develop websites. This needs high expertise. Consequently, the cost rises up an finding the expertise knowledge is challenging as well. Another negative aspect in tra itional web development is requirement of high development time. Further, in trad tional web development modifications require more time too. On the other hand, Web-CM,' is capable to store a massive quantity of data. Therefore, some companies have already mov d and some are trying to move to Web-CMS. Another benefit is Web-CMS does not need expertise. Besides, development takes lesser time, lesser cost and also it has a huge variety of features. Even though there are some barriers to move to Web-CMS such as Unstructured ata + High time consumption for data migration, Requirement of high effort/skill labour for data migration, Undesirability to accept changes, Fear of obsolesce, Security in CMS. ince today organizations use sensitive data such as health details, credit card details high s curity is a must. Currently in Sri Lanka using CMS has becoming popular and some organ zations are migrating to Web-CMS. Recently Joomla CMS based website was introduced for making appointments for PHM (Public Health Midwife) who is in charge of maternal haith, infant health, and planned parenthood. This wei;'~ased booking system supports trilingual which negated the language barrier. The target of the research is to identify the factors obstruct the migration from traditional web development to Web-CMS. IT companies in Sri Lanka were chosen for the research.
Open Access
Synthesis, characterization and applications of metal nanoparticles supported on porous carbon
(ProQuest LLC, 2017) Thambiliyagodage, C. J
Porous carbon incorporating metal nanoparticles has been synthesized by nanocasting. The main two methods of synthesis were used: the formation of nanoparticles during the carbonization of carbon, and the formation of nanoparticles by metal precursor infiltration and reduction on porous carbon. The catalytic activity of nickel nanoparticles incorporated onto hierarchically porous carbon monoliths for the reduction of p-nitrophenol was studied. p-Quinoimine was identified as the stable intermediate. Catalytic graphitization of monolithic hierarchically porous carbon by iron, cobalt and nickel nanoparticles was investigated. The catalytic graphitization of amorphous carbon increased with increasing pyrolysis temperature. Iron was capable of graphitizing carbon more effectively than cobalt and nickel, with cobalt being higher in activity than nickel. Oxygen and nitrogen rich mesoporous carbon were used to support gold nanoparticles and their catalytic activity was investigated for oxidation of benzyl alcohol in water. The catalysts showed significant catalytic activity, but loss of activity were found, resulting in decreasing conversion of benzyl alcohol on subsequent cycles.

Theses

Browse

Filters

Advanced Search

Filter by

Settings

Sort By

Results per page

Search Results