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Tender evaluation through efficiency analysis for public construction contracts

Stefan NIEWERTH, Peter VOGT, Markus THEWES

Frontiers of Engineering Management 2022, Volume 9, Issue 1, Pages 148-158 doi: 10.1007/s42524-020-0119-z

Abstract: Given the European Public Procurement Directive 2014/24/EU, policymakers have ordered the inclusion of various criteria, such as the price, life-cycle costs, environmental, and social aspects, in the evaluation of tenders for public construction projects. Consequently, the relevance of non-monetary award criteria has gained significant value. However, the established evaluation formulas, which are used to obtain the best value for money procurement, have resulted in legal disputes. The existing evaluation formulas exhibit mathematical weaknesses, wherein scoring indices do not express economic efficiency adequately. Thus, a conflict is observed between the political requirement of non-monetary award criteria and their evaluation by contracting authorities. To overcome such dilemma, an extensive literature review is conducted. Specifically, this study explores the essential problems of existing evaluation formulas and develops a more reliable method. The technique from the field of efficiency analysis, i.e., Data Envelopment Analysis (DEA), is adopted in this study. For contract awarding, the DEA is extended by introducing a decision theoretical framework. For public procurement, the proposed method combines two advantages. First, the proposed method ensures the derivation of a robust tender ranking given that with respect to clients’ preferences, irrelevant and insufficiently tailored tenders do not influence the scoring. Second, the proposed method supports the intention of policy makers to promote public goals, such as sustainable aspects. By disclosing the strengths and weaknesses of bidders with respect to their competitors, all bidders can obtain a precise overview of their performance regarding the award criteria. In sum, the proposed method allows a targeted improvement of certain criteria values in future tenders and consequently leads to an enhancement of public goals.

Keywords： bid evaluation public procurement best value for money data envelopment analysis contractor selection

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Review on ranking and selection: A new perspective

L. Jeff HONG, Weiwei FAN, Jun LUO

Frontiers of Engineering Management 2021, Volume 8, Issue 3, Pages 321-343 doi: 10.1007/s42524-021-0152-6

Abstract: In this paper, we briefly review the development of ranking and selection (R&S) in the past 70 years,

Keywords： ranking and selection hypothesis testing dynamic programming simulation

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Overview and problems of BIM implementation in Japan

Takashi KANETA, Shuzo FURUSAKA, Nisi DENG

Frontiers of Engineering Management 2017, Volume 4, Issue 2, Pages 146-155 doi: 10.15302/J-FEM-2017007

Abstract: can reduce the project risk inherent in design and drawings by transferring these tasks to a general contractor

Keywords： Building Information Modeling general contractor architect drawing procurement project management

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Control mode selection for modal control of long-span arch bridge

Zhengying LI, Zhengliang LI,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4, Pages 401-406 doi: 10.1007/s11709-009-0052-z

Abstract: As for the critical mode selection, an approach based on the maximum modal displacement was presented

Keywords： selection reduced-order excitation long-span simplified

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Supplier selection and order splitting in multiple-sourcing inventory systems

WANG Guicong, JIANG Zhaoliang, LI Zhaoqian, LIU Wenping

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1, Pages 23-27 doi: 10.1007/s11465-008-0016-3

Abstract: Supplier selection and inventory control are critical decision processes in single-item multiple-supplier

Keywords： automobile industry branch-bound algorithm selection single-item multiple-supplier effective

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Genomic regions under selection for important traits in domestic horse breeds

Xuexue LIU, Yuehui MA, Lin JIANG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 3, Pages 289-294 doi: 10.15302/J-FASE-2017155

Abstract: Modern breeding using marker-assisted selection has greatly accelerated breeding progress.genetic mapping studies and genome wide analyses to identify the genomic regions targeted by positive selection

Keywords： horse coat color racing performance gait height

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Rethinking the tendering frameworks of construction contractors in the context of a soft systems methodology approach

Stephen URQUHART, Andrew WHYTE

Frontiers of Engineering Management 2018, Volume 5, Issue 3, Pages 369-380 doi: 10.15302/J-FEM-2018019

Abstract:

Limited research has been conducted on the internal tendering procedures (ITP) of construction contractors because of the commercially sensitive and confidential nature of the subject matter. This limitation explains the reluctance of contractors to undergo interviews. Existing research (outside bid/no-bid and margin decision factor identification and subsequent decision modeling development) only begins to provide insights into key tendering stages, particularly around risk assessments and corporate review processes. Early research suggested one to three review stages. However, when considering the whole work procurement process from prospect identification to contract execution, five to seven series of reviews can be arguably applied by some contractors, wherein some reviews stepped through several layers of internal senior management. Tendering processes were presented as flowchart models that traditionally follow “hard” system (rectangular shapes and straight line arrows) steps, which suggest that a precise process also leads to precise results. However, given that contractors do not win every tender they submit, the process is less precise than that suggested in rigidly structured flowcharts. Twenty-five detailed semi-structured interviews were held with purposely selected high-profile publicly and privately owned construction companies in Australia with significantly varied turnovers. Analyses show that contractors are concerned about the negative effects of increasing corporate governance demands, with many stating that people involved are the most critical element to tendering success. A new way of presenting the ITP of contractors is assessed using a soft systems methodology (SSM) approach. SSM offers an alternative way of considering human interaction challenges within the ITP of contractors, which needs to be tested with the industry. The format graphics of SSM guidelines are presented as a way of offering contractors a different approach, which may assist individuals who are looking to re-structure their tendering activities in a more humanistic and less rigid procedural approach.

Keywords： contractor corporate governance humanistic risk soft systems methodology tendering procedures

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Case-based reasoning for selection of the best practices in low-carbon city development

Zhenhua HUANG, Hongqin FAN, Liyin SHEN

Frontiers of Engineering Management 2019, Volume 6, Issue 3, Pages 416-432 doi: 10.1007/s42524-019-0036-1

Abstract: The proposed methodology is demonstrated by applying it to the selection of the best practices for low-carbon

Keywords： low-carbon city carbon emission best practices case-based reasoning

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Miscellaneous dangerous mountain geological survey and the line selection techniques

He Huawu,Zeng Qiangyun

Strategic Study of CAE 2009, Volume 11, Issue 12, Pages 9-12

Abstract: The article aims to provide some references for similar investigation and route selection by brieflyintroducing the geologic characteristics, the integrated methods for geologic survey and route selection

Keywords： Yichang-Wanzhou Railway geologic characteristics geologic investigation geology route selection

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Flexibility analysis and evaluation for joint venture of construction project contractors

Zhao Zhenyu,Yin Yin

Strategic Study of CAE 2008, Volume 10, Issue 9, Pages 84-87

Abstract: The results can assist to provide advice for the strategies and measures selection and adjust the JV&

Keywords： construction project contractor joint venture flexibility management

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Face recognition based on subset selection via metric learning on manifold

Hong SHAO,Shuang CHEN,Jie-yi ZHAO,Wen-cheng CUI,Tian-shu YU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 12, Pages 1046-1058 doi: 10.1631/FITEE.1500085

Abstract: Under this observation, several approaches have been developed to carry out an efficient element selection

Keywords： Face recognition Sparse representation Manifold structure Metric learning Subset selection

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Isolating higher yielding and more stable rice genotypes in stress environments: fine-tuning a selection

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023521

Abstract:

● Score index methods readily discriminate genotypes adapted to a target environment.

Keywords： Aerobic rice breeding selection drought resilience production capacity index resilience capacity

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Shield selection and function design of Beijing underground diameter line

Han Yali,Lv Chuantian,Zhang Ningchuan

Strategic Study of CAE 2010, Volume 12, Issue 12, Pages 29-34

Abstract: According to the diameter of the tunnel and the geological conditions, considered factors of equipment selectionThe issues and problems that need to be paid attention for selection and design of shield were proposed

Keywords： railways underground diameter line shield selection shield functional design

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Shale gas enrichment factors and the selection and evaluation of the core area

Wang Shejiao,Yang Tao,Zhang Guosheng,Li Denghua,Chen Xiaoming

Strategic Study of CAE 2012, Volume 14, Issue 6, Pages 94-100

Abstract:

Many factors affect the size of the shale gas development. First and foremost factor is how to establish the geological evaluation standards and select the core area of shale gas. In the early stage of exploration the optimized shale gas core area makes it possible to identify the target and to select the most favorable region for exploration. The main purpose is to find shale gas and achieve economic development. Based on the analysis of shale gas reservoir characteristics and the enrichment factors we discuss the organic-rich shale maturity, mineral content, gas content and conservation parameters in China. Learn from the U.S. shale gas exploration and development and research, combined with the new progress of China's shale gas exploration and development and research, we establish china's first shale gas core area parameter system and value standards. Finally, we optimize some favorable areas and core areas of the marine shale in southern China and point out Southern Sichuan Basin is the most realistic area for shale gas development.

Keywords： core area selection and evaluation enrichment factors marine shale shale gas

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Genomic Mutations within the Host Microbiome: Adaptive Evolution or Purifying Selection Review

Jiachao Zhang,Rob Knight,

Engineering 2023, Volume 20, Issue 1, Pages 96-102 doi: 10.1016/j.eng.2021.11.018

Abstract:

Next-generation sequencing technology has transformed our ability to assess the taxonomic composition functions of host-associated microbiota and microbiomes. More human microbiome research projects—particularly those that explore genomic mutations within the microbiome—will be launched in the next decade. This review focuses on the coevolution of microbes within a microbiome, which shapes strain-level diversity both within and between host species. We also explore the correlation between microbial genomic mutations and common metabolic diseases, and the adaptive evolution of pathogens and probiotics during invasion and colonization. Finally, we discuss advances in methods and algorithms for annotating and analyzing microbial genomic mutations.

Keywords： Gut microbiota Genomic mutations Adaptive evolution Purifying selection Single-nucleotide variants