Master of Philosophy (M.Phil.)

Permanent URI for this collectionhttp://192.248.9.226/handle/123/18721

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Browsing Master of Philosophy (M.Phil.) by Author "Perera GIUS"

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    Multimodal user interaction framework for context aware e-commerce
    (2019) Hewawalpita SGS; Perera GIUS
    E-commerce has grown up to be a major use of e-services and online purchases through the e-commerce are largely preferred over the traditional brick and mortar purchasing. Yet it is challenging for the consumers to fully experience the products or services with limited senses, lack of tangibility and sense of presence. Therefore a vital research question can be identified; how multimodal interactions can be used in e-commerce with context awareness, to improve the consumer experience. To address that question, this research aimed to study multimodal interactions, contextual factors and their effects on consumers. A set of multimodal interactions including 3D visualization and hand gestures and related contextual factors such as user, access device were identified in this research. They have been used to develop a multimodal interactions enabled prototype e-commerce framework. Several experiments and user studies have been conducted using the developed e-commerce framework and interesting effects on consumers have been discovered including positive user experience, improved value perceptions, and positive product opinions. Most importantly it has been shown that consumers perceive about 50% increased product value, and they are more likely to purchase when interacted multimodally. Usability Evaluations on the framework showed that users are mostly successful and comfortable in using multimodal interactions. Some technical, social and cultural barriers and challenges for enabling multimodal interactions were also revealed in those evaluations. From the findings of this research, it is suggested that further research focus should be on overcoming the identified technical, social and cultural barriers and bringing multimodal interactions to mass usage in electronic commerce platforms. Also the multimodal interactive e-commerce framework developed in this research can be used as platform to further study consumer dynamics by changing various variables.
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    Traceability management in a devops environment with continuous integration
    (2019) Rubasinghe ID; Meedeniya DA; Perera GIUS
    Software artefacts traceability is an important factor during the process of software development to analyse changes occur in software components. Traceability improves the quality attributes of software systems such that strengthens the testability, maintainability, reusability and helps for the system acceptance by providing consistent system documentation to the users. Meanwhile, the concept DevOps motivates towards the reduction of the gap between development and operations requiring considerable organizational changes. In a DevOps environment, significant software artefact changes are expectable rapidly where continuous integration is essential. Continuous integration is a cornerstone practice in DevOps that frequently merges developer working copies into a single shared branch. There is a requirement of determining and analysing the resulted impact of the traceability in order to make accurate change acceptance decisions during software development. Therefore, the core research problem addressed is determining a methodology for change detection and impact analysis together with software artefact synchronization to preserve consistency across all artefacts in a DevOps environment. A rule-based methodology is followed with visualization and analysis techniques applied on a proof-of-work traceability management prototype tool: SAT-Analyser 2.0. The evaluation results and industry-level user study results have shown the significant usefulness and suitability of the approach to a DevOps environment as well as to any software development process model.