The Experts below are selected from a list of 754209 Experts worldwide ranked by ideXlab platform
Lauri Koskela - One of the best experts on this subject based on the ideXlab platform.
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addressing information flow in lean Production Management and control in construction
22nd Annual Conference of the International Group for Lean Construction: Understanding and Improving Project Based Production, 2014Co-Authors: Bhargav Dave, Sylvain Kubler, Kary Framling, Lauri KoskelaAbstract:Traditionally, Production control on construction sites has been a challenging area, where the ad-hoc Production control methods foster uncertainty - one of the biggest enemies of efficiency and smooth Production flow. Lean construction methods such as the Last Planner System have partially tackled this problem by addressing the flow aspect through means such as constraints analysis and commitment planning. However, such systems have relatively long planning cycles to respond to the dynamic Production requirements of construction, where almost daily if not hourly control is needed. New solutions have been designed by researchers to improve this aspect such as VisiLean, but again these types of software systems require the proximity and availability of computer devices to workers. Given this observation, there is a need for a communication system between the field and site office that is highly interoperable and provides real-time task status information. A High-level communication framework (using VisiLean) is presented in this paper, which aims to overcome the problems of system integration and improve the flow of information within the Production system. The framework provides, among other things, generic and standardized interfaces to simplify the “push” and “pull” of the right (Production) information, whenever needed, wherever needed, by whoever needs it. Overall, it is anticipated that the reliability of the Production control will be improved
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towards a lean model for Production Management of refurbishment projects vtt technology 94
2013Co-Authors: Sergio Kemmer, Lauri KoskelaAbstract:This is the Stage 3 Report for the ApRemodel project, which aims at improving processes for multi-occupancy retrofit by generating a lean model for project delivery. In this respect, a process-driven approach has been adopted to investigate what can be done to improve the way that retrofits projects are delivered. An initial literature review, focused on the Management of refurbishment works, revealed that the research on this matter is scarce. There are plenty of studies related to the broad refurbishment area, however only a small number refer to the way that those construction projects are delivered. According to the literature, construction organisations have predominantly used traditional methods for managing the Production of refurbishment projects. The problem is that those tools and techniques are not often appropriate to cope with the complex characteristics inherent to construction projects, especially in the case of refurbishments. Moreover, they have often not been based on a clear theoretical foundation. As a result, numerous types of waste have been identified in refurbishment projects such as waiting time, disruptions in performing tasks on site, rework, among others. This has led to unsatisfactory project performance in terms of low productivity, project delays, and cost overrun. The first step towards better Production Management in refurbishment projects is recognising the complexity of the sector in order to adopt the correct approach to cope with this specific scenario. In this respect, lean construction is identified as an appropriate way to deal with the complexity and uncertainty inherent in refurbishment projects, given that this Management philosophy fully integrates the conversion, flow, and value views. This document builds on the findings from the literature review as well as evidence from case studies. Managerial practices based on lean construction principles have presented successful results in the Management of complex projects. Case studies available in the literature report the feasibility and usefulness of this theoretical foundation. Moreover, the evidence from these studies show considerable potential for improving the Management of refurbishment works. A list of methods, tools, and techniques are identified. This report may be used by construction refurbishment organisations and housing associations as a starting point for improving the efficiency in managing Production of refurbishment projects. To this end, partnerships between industry and academia are strongly recommended. 4 Although the usefulness of lean principles in complex projects is already proved, further work is needed to check what practices are best for the respective refurbishment context, as well as identifying enablers and barriers for practical adoption. Furthermore, additional studies would be also necessary to better understand the extent to which the implementation of lean philosophy might influence performance of refurbishment projects. This report should be seen as work in progress with much more to learn, as detailed research work around the sustainable retrofit process in a lean way is further developed.
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improving information flow within the Production Management system with web services
18th Annual Conference of the International Group for Lean Construction IGLC 18, 2010Co-Authors: Bhargav Dave, Stefan Boddy, Lauri KoskelaAbstract:The efficiency of the Production planning and control process in construction depends significantly on the reliability and timely availability of resource information. The Last Planner system for Production control mandates that a construction task should not be started unless all the seven resource prerequisites are in satisfactory condition. Failure to do so results in wasteful processes. However, this information is not readily available due to the lack of systems integration that prevails within the industry. Current implementations of the last planner system mostly rely on the team leaders‘ and foreman‘s ability to gather the required information for the weekly planning meetings and also for the look-ahead planning. However, much time is wasted chasing relevant information due to the above-mentioned problems. Also, the reliability of planning could be much improved if there is a system available, which aggregates resource information from various project stakeholders in one place. In such a situation, web services could provide an ideal platform for integration as they provide a flexible way to integrate disparate systems, with choreography based on identified business processes drawn from Last Planner and implemented using BPMN/BPEL. With the improvement in connectivity as a result of better availability of high speed Internet through mobile and fixed networks, there is a better opportunity for information integration through web services. A conceptual framework based on web services is put forward which aims to improve the information flow within the industry and provide the right information at the right time to enable better planning and control within the Production system.
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reforming project Management the role of lean construction
8th Annual Conference of the International Group for Lean Construction, 2000Co-Authors: Gregory A Howell, Lauri KoskelaAbstract:Project Management as taught by professional societies and applied in current practice must be reformed because it is inadequate today and its performance will continue to decline as projects become more uncertain, complex and pressed for speed. Project Management is failing because of flawed assumptions and idealized theory: it rests on a faulty understanding of the nature or work in projects, and a deficient definition of control. It is argued that a reform of project Management will be driven by theories from Production Management that add the Management of workflow and the creation and delivery of value to the current emphasis on activities. Of all the approaches to Production Management, the theory and principles drawn from Lean Production seem to be best suited for project Management. Promising results in this regard have been reached already in one project Management area, namely in Lean Construction.
Joao Murta Alves - One of the best experts on this subject based on the ideXlab platform.
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Production Management model integrating the principles of lean manufacturing and sustainability supported by the cultural transformation of a company
International Journal of Production Research, 2015Co-Authors: Jose Roberto Xavier Alves, Joao Murta AlvesAbstract:The search for superior Production performance has been used by companies to overcome competition in the current global economic scenario. Efficient manufacturing connected to environmental initiatives provides a company with favourable conditions for maintaining uniform and continuous improvement in its competitive performance, while providing operational versatility to respond quickly to volatile markets. As Production is one of the most expensive areas for a company, many organisations have sought a new Management model for their Production system that provides substantial productivity gains, cost saving opportunities and higher customer satisfaction. This study proposes a model of Production Management and an implementation method integrating the principles of lean manufacturing and sustainability, supported by cultural transformation at the company. Its objective was to achieve productivity gains and improvements on customer satisfaction, as well as develop the ability to provide quick responses to m...
Francklin Rivas - One of the best experts on this subject based on the ideXlab platform.
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an implementation of a distributed artificial intelligence architecture to the integrated Production Management
Journal of Natural Gas Science and Engineering, 2011Co-Authors: Cesar Bravo, Jose Lisandro Aguilar Castro, Joseph Aguilarmartin, Addison Ríos, Luigi Saputelli, Francklin RivasAbstract:The oil Production process is highly complex and requires the combination of several disciplines and technological tools for its Management. System integration and the automation of the workflows required to develop oil Production operations are two main problems nowadays at the oil and gas Production industry. This work approaches these problems through the implementation of distributed artificial intelligence architecture, designed for the automated Production Management. The architecture comprises a standardized schema to access information sources, a Production ontological framework and an intelligent workflow mechanism based on multi-agent systems and electronic institution. Our architecture present several novelties: the incorporation of the semantic integration, the extension of the agents theory through the electronic institutions paradigm to solve the real-time decision problems typical in the industry, the Holon-Agent hybrid model used to make more feasible its implementation, among others. An oil Production Management case study is presented in order to demonstrate the applicability of the proposed architecture.
Jose Roberto Xavier Alves - One of the best experts on this subject based on the ideXlab platform.
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Production Management model integrating the principles of lean manufacturing and sustainability supported by the cultural transformation of a company
International Journal of Production Research, 2015Co-Authors: Jose Roberto Xavier Alves, Joao Murta AlvesAbstract:The search for superior Production performance has been used by companies to overcome competition in the current global economic scenario. Efficient manufacturing connected to environmental initiatives provides a company with favourable conditions for maintaining uniform and continuous improvement in its competitive performance, while providing operational versatility to respond quickly to volatile markets. As Production is one of the most expensive areas for a company, many organisations have sought a new Management model for their Production system that provides substantial productivity gains, cost saving opportunities and higher customer satisfaction. This study proposes a model of Production Management and an implementation method integrating the principles of lean manufacturing and sustainability, supported by cultural transformation at the company. Its objective was to achieve productivity gains and improvements on customer satisfaction, as well as develop the ability to provide quick responses to m...
Cesar Bravo - One of the best experts on this subject based on the ideXlab platform.
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an implementation of a distributed artificial intelligence architecture to the integrated Production Management
Journal of Natural Gas Science and Engineering, 2011Co-Authors: Cesar Bravo, Jose Lisandro Aguilar Castro, Joseph Aguilarmartin, Addison Ríos, Luigi Saputelli, Francklin RivasAbstract:The oil Production process is highly complex and requires the combination of several disciplines and technological tools for its Management. System integration and the automation of the workflows required to develop oil Production operations are two main problems nowadays at the oil and gas Production industry. This work approaches these problems through the implementation of distributed artificial intelligence architecture, designed for the automated Production Management. The architecture comprises a standardized schema to access information sources, a Production ontological framework and an intelligent workflow mechanism based on multi-agent systems and electronic institution. Our architecture present several novelties: the incorporation of the semantic integration, the extension of the agents theory through the electronic institutions paradigm to solve the real-time decision problems typical in the industry, the Holon-Agent hybrid model used to make more feasible its implementation, among others. An oil Production Management case study is presented in order to demonstrate the applicability of the proposed architecture.
