Simulation and optimization of overlapped iteration process with multi-coupled activities based on value analysis

Yin, Fupeng; Gao, Qi; Ji, Xuanrong

doi:10.1177/1063293x18806336

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…This proposition supports the view of some academics (Lin et al, 2009; Loch and Terwiesh, 1998) that the functional interaction utility between upstream and downstream tasks in overlapping execution can significantly speed up the completion of downstream tasks, but has no significant effect on the completion speed of upstream tasks. Another part of scholars (Yang et al, 2012; Yin et al, 2019) believes that there is no significant difference in the speed of upstream and downstream tasks. Based on the analysis of this kind of literature, this study found that the influence of frequent information communication between upstream and downstream tasks on the total execution duration was not taken into account when constructing the overlapping execution model, and the time consumed by frequent information communication in the overlapping execution mode has been demonstrated by many scholars (Yassine et al, 2013; Lin et al, 2009) as an important factor affecting the total execution duration.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…Therefore, the design task needs to carry out the overall planning of the project according to the comprehensive requirements of all aspects of construction, and the construction task needs to participate in the design task as soon as possible to achieve the integration of the concept of constructability, and the concurrent execution advocated in DB mode can realize the above requirements by realizing the high coordination and close cooperation between design and construction tasks. Concurrent execution applies the core idea of concurrent engineering (CE), which allows the downstream phase to start earlier by using preliminary information, thereby reducing project cycle time (Yin et al, 2019). However, the negative effects of concurrent execution are also significant.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and optimization of concurrent execution process of coupled design-construction tasks under design-build mode

Wang

Feng

2022

Concurrent Engineering

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Concurrent execution of design and construction tasks is an important way to realize the integration of them in design-build (DB) mode, but it may bring about period risk due to multiple rework and frequent information transfer in local scope. To solve this problem, this study constructs a concurrent execution strategy model from the perspective of quantitative analysis with the decision goal of minimizing the total execution duration. The results show that: first, when the probability of information change between design and construction tasks decreases gradually, the optimal overlap degree increases and the optimal parallelism decreases. Second, learning effect can effectively shorten the minimum duration corresponding to the optimal overlap degree under any degree of parallelism. Thirdly, with the decrease of the probability of information change between design and construction tasks and the strengthening of learning effect, the shortening rate of the actual execution duration corresponding to the optimal parallelism will be gradually greater than the increasing rate of the actual execution duration. The findings of the study provide suggestions for exploring the mechanism of concurrent execution in DB mode, and also provide countermeasures for better realization of integration of design and construction in DB mode.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling and optimization of concurrent execution process of coupled design-construction tasks under design-build mode

Wang

Feng

2022

Concurrent Engineering

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“…This involves assessing the cost of producing or providing the component, including the cost of raw materials, labor, and other expenses. Value analysis identifies areas where costs can be reduced without compromising on quality or customer satisfaction (Yin, Gao & Ji, 2019). This may involve identifying components that can be eliminated or replaced with lower-cost alternatives, or finding ways to reduce the cost of producing or providing the component.…”

Section: Stratford Peer Reviewed Journals and Book Publishing Journal...mentioning

confidence: 99%

Cost Reduction Strategies and Growth of FMCG Companies in Kyoto, Japan

2023

JSM

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Cost reduction is a deliberate strategy to save expenses. Cost reduction is the practice of lowering expenses made by an organization in order to increase profits and ensure the business grows. Using cost-reducing strategies may help even profitable firms generate a much larger total profit from their goods or services. Cost reduction measures should be used for a company to experience growth in terms of increased profits. Many cost reduction strategies fall short because they are based on false assumptions. The study found that companies' managements are getting more and more cost-conscious nowadays, and they are always looking for innovative methods to reduce costs and cut wastages. Prices for products, raw materials, and services are steadily rising and because the producers and manufacturer's concern is to generate profit, they sometimes employ low quality materials in their production in an effort to cut costs and increase profits. Moreover, given the increased competition, majority of manufacturers have decided that it is prudent to make or package a quality product in order to raise their profit margin. Profitability and cost reduction are the cornerstones of any company and they consequently represent the bottom line for every company. The study concluded that a cost reduction approach directly affects Japan's improvement in the growth of fast-moving commodities. Every department in a firm, notably the manufacturing department, should use realistic standard cost reduction techniques, and the cost reduction plan should be effectively implemented to ensure that the quantities of produced items are accurately recorded. It is important for FMCG companies to carefully consider the impact of cost reduction strategies on their operations and ensure that they do not compromise on quality or customer satisfaction. It is recommended that manufacturing companies should use value analysis to cut and remove extra expenses related to products. Companies should regularly analyze their operational process to identify and minimize costs.

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“…Compared with other compressing technologies, overlapping has characteristics of high efficiency and low cost, which has attracted increasing attention in recent years [4][5][6]. However, if applying overlapping strategy between two activities in an unappropriated time, for example, the upstream activity information is incomplete, the resources are in a shortage, or the working surface is insufficient, it is likely to increase the risk of rework [2,7,8], cost [9], and the failure of schedule plan [2,7]. Furthermore, it will reduce the potential revenue of the project entering the market.…”

Section: Introductionmentioning

confidence: 99%

Model and Algorithm for Dependent Activity Schedule Optimization Combining with BIM

Guo

Liu

2020

Advances in Civil Engineering

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The project duration can be shortened by overlapping construction activities. However, the continuous changing of the environment tends to cause problems such as rework and the failure of the overlapping plan. In order to solve these problems, communication strategies for the overlapping of dependent activities are first introduced and optimized from a revenue perspective. We first consider the different maturities of upstream activity before and after the overlapping, the downstream sensitivity which is decided by involving communication strategies, and the learning and error-correcting ability of workers. Then, the overlap and communication strategies are decided by calculating the maximum revenue using Monte Carlo simulation and MATLAB based on overlap cost, communication cost, rework cost, and reward amount. Finally, the algorithm and BIM are combined to provide a visual overlap plan and dynamic control platform framework. This research is valuable for practitioners as it provides a dynamic overlap plan which can maximize the revenue in changing the environment and ensure the duration of the project. This research also provides researchers a new insight into combining overlap problems and BIM technology.

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Simulation and optimization of overlapped iteration process with multi-coupled activities based on value analysis

Cited by 9 publications

References 23 publications

Modeling and optimization of concurrent execution process of coupled design-construction tasks under design-build mode

Modeling and optimization of concurrent execution process of coupled design-construction tasks under design-build mode

Cost Reduction Strategies and Growth of FMCG Companies in Kyoto, Japan

Model and Algorithm for Dependent Activity Schedule Optimization Combining with BIM

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