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Author: search.filters.author.Weerabahu, S.

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    Combining Industry 4.0 with Lean Healthcare to Optimize Operational Performance of Sri Lankan Healthcare Industry
    (IEEE Xplore Digital Library, 2018) Ilangakoon, T.; Weerabahu, S.; Wickramarachchi, R.
    Healthcare is one of the industries that requires the highest quality services for the wellbeing of the society. Today, the demand for healthcare growing rapidly with increasing aging population, rapid urbanization, changing diets, inactive lifestyles and rising obesity levels. The Industry 4.0 technologies and lean techniques can be used to enhance the operational performance of the healthcare supply chain and the patient flow. This paper examines the factors contributing for the inefficiencies in Sri Lankan Healthcare sector and how the operational performance can be optimized through premedical diagnosis of diseases by incorporating Industry 4.0 technologies and lean techniques. Based on a systematic review of literature and feedback of healthcare professionals, the paper identifies the inefficiencies in the current healthcare system. A conceptual framework has been developed by considering the direct impacts from lean management practices and Industry 4.0 technologies on improving operational performance through pre-medical diagnosis of diseases. Thus, patients can take preventive actions and be more health conscious while the healthcare providers and other related parties can plan their medical services and supporting services for arising health requirements making the healthcare industry much more efficient.
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    Applicability of Lean and Green Concepts in Logistics 4.0: A Systematic Review of Literature
    (IEEE Xplore Digital Library, 2019) Edirisuriya, A.; Weerabahu, S.; Wickramarachchi, R.
    Sustainability is emerging as a main consideration throughout the industrial world due to the environmental pollution and degradation happening in a major scale as a result of industrial wastes while lean management is becoming a popular management tool in minimizing waste. Logistics industry contributes for these issues due to the wastes released in a considerable amount. Experts have highlighted that implementing lean principles in parallel to green concepts is more successful; which could lead to waste and cost reduction. A theoretical gap has been identified in the field of logistics in applying lean and green concepts in the context of Industry 4.0. A comprehensive literature review was conducted to address the identified research gap with the objective of examining the important lean practices and green concepts which are expected to enhance the operational performance of logistics functions. A key word based search, analysis of the topic and abstract, full text review were the steps followed respectively, for selecting the most relevant research papers which have been proven as valid, accepted and published to extract the knowledge for this study. As the major contribution, authors have developed a conceptual framework which focuses on the enhancement of operational performance of logistics operations by applying lean and green concepts with special reference to Industry 4.0 technologies. The results of the study will be beneficial for the LSP as it will suggest the strategies, concepts and techniques to enhance the operational performance of logistics functions.
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    A cross-functional collaborative model for supplier evaluation for the sustainability of a firm
    (International Research Conference on Smart Computing and Systems Engineering - SCSE 2018, 2018) Jayarathne, K.; Wijayanayake, A.; Weerabahu, S.
    Business organizations have emphasized the importance of sustainability in their business processes. Sustainability of a firm can be measured on social, environmental and economic benefit indicators known as “triple bottom line”. Supplier selection process is one of the critical issues of sustainability activities faced by supply chain managers to maintain a strategically competitive position in the industry and supplier selection can significantly affect in achieving the triple bottom line. Given the current context, technological factors immensely affect the sustainability of a firm. Communication and web based systems related technology is a vital factor to build sustainable supply chain relationships. Thus, technological aspects can be taken into consideration under different sustainable criteria for supplier selection, though it has not been considered yet as a major factor. Analytical Network Process (ANP) has been incorporated to compute the supplier evaluated score that was computed by each department against each supplier. Then an Integer Linear Programming (ILP) model has been used to integrate the judgments of the multiple decision-makers. This research addresses the supplier selection decisions by groups of experts, which improves the quality and accuracy of the decisions made. In this model, both subjective and objective factors related to supplier selection are incorporated in order to optimize the procurement process aligning to the sustainability of the firm.