SLIIT Conference and Symposium Proceedings

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All SLIIT faculties annually conduct international conferences and symposiums. Publications from these events are included in this collection.

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Author: search.filters.author.Pulasinghe, K

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    PublicationOpen Access
    The Influence Of Project Managers' Decision-Making Styles On Schedule Variance In Building Construction Projects
    (Faculty of Engineering, 2025-09-09) Pulasinghe, K; De Silva, P
    This research focus to assess the relationship between project managers decision making styles and schedule variance in building construction projects in Sri Lanka. Timely completion of construction projects is one of the major performance indicators, yet delays are a long-standing issue in Sri Lankan construction projects. Though there are many causal factors, decision-making styles of project managers have not been studied yet, creating a significant knowledge gap with regard to their influence on project schedule variance. This study attempts to analyze the relationship between project managers' decision-making styles: directive, analytical, conceptual, and behavioural and schedule variance in Sri Lankan building construction projects. A mixed-methods research approach was adopted. Primary data were gathered by holding semi-structured interviews with nine industry practitioners and a questionnaire survey of 50 respondents covering key project roles. To analyze the data code based content analysis and descriptive statistical tools (percentage count, mean, weighted average etc.) were used and to examine the relationship between decision-making styles and schedule variance Pearson correlation was conducted. Results revealed that decision making styles play a significant role in influencing project schedules. However, it was found that directive and behavioural styles are most prevalent and successful styles in the Sri Lankan context. The data revealed both positive and negative influences of managerial decisionmaking styles on schedule performance. These results contribute to the link between leadership and project performance and make a theoretical and practical contribution by revealing decision-making as a key influence to minimize schedule variance.
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    PublicationEmbargo
    iPillow: Sleep Quality Improvement System
    (IEEE, 2019-12-05) Amarasena, J; Indimagedara, N; Wanigasuriya, S; Bandare, B; Pulasinghe, K; Tharmaseelan, J
    A quality sleep is essential for the maintenance of the internal organs, to improve memory and brain functionalities, reduce the stress, and to improve our health state. We focused on “Accurate sleep stages detection methods and sleep quality improvement methods” to implement a device that improves the quality of sleep. This device will have an EEG (electroencephalogram) sensor along with the heartbeat, gyroscope and pressure sensors to increase the accuracy of the sleep level identification and a medication system to play binaural beats to trigger the sleep. Furthermore, a survey will be conducted in the public to gather the data on sleeping disorders and performing an analysis using an algorithm on gathered information, a sleep support health mobile application will be designed to review user's daily sleep quality and share health tips daily according to the user's health situation. As the final product, we hope to invent a smart pillow called “IPillow” which is capable of improving the sleep quality.