Factors-driven comparison between BIM-based and traditional 2D quantity takeoff in construction cost estimation

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Abdul Wahab ◽  
Jun Wang
Keyword(s):  
Decision Making ◽  
Cost Estimation ◽  
Content Type ◽  
Team Members ◽  
Study Results ◽  
Level Of Details ◽  
Significant Comparison ◽  
The Difference ◽  
Better Than

PurposeQuantity Takeoff (QTO) is an integral part of the decision-making process. Currently, QTO is mostly done using manual or 2D method, and practitioners are considering the use of BIM quantity takeoff as an effective alternative to the traditional 2D software takeoff. However, the existing literature does not have adequate studies to confirm that the use of BIM-based QTO is better than the 2D method. Therefore, this paper aims to expand and improve the existing literature into a more detailed analysis of each element to investigate that BIM is indeed a better option of the two QTO methods.Design/methodology/approachA total of 19 factors in four broad categories, i.e. timely decision making, accuracy, collaboration, and level of details were identified to draw a significant comparison between the two procedures, i.e. BIM-based quantity takeoff and traditional 2D takeoff. Surveys and case study are used to collect data for analysis to achieve the research goals.FindingsThe questionnaire survey showed that using BIM for the QTO process has significant benefits in achieving higher productivity on takeoff, accuracy, clarity and collaboration among the team members. The case study results also showed improvement in BIM-based QTO by achieving higher accuracy and productivity.Originality/valueUnderstanding the difference between the two QTO processes is a challenging task; therefore, this paper contributes to drawing a comparison line between the two processes by introducing the factors that affect the QTO process.

An alternative approach to safety integrity level determination: results from a case study

2019 ◽  
Vol 36 (10) ◽  
pp. 1784-1803 ◽  
Author(s):  
Nouara Ouazraoui ◽  
Rachid Nait-Said
Keyword(s):  
Decision Making ◽  
Fuzzy Model ◽  
Graph Model ◽  
Content Type ◽  
Integrity Assessment ◽  
Graph Method ◽  
Safety Integrity Level ◽  
Study Results ◽  
Graph Parameters

Purpose The purpose of this paper is to validate a fuzzy risk graph model through a case study results carried out on a safety instrumented system (SIS). Design/methodology/approach The proposed model is based on an inference fuzzy system and deals with uncertainty data used as inputs of the conventional risk graph method. The coherence and redundancy of the developed fuzzy rules base are first verified in the case study. A new fuzzy model is suggested for a multi-criteria characterization of the avoidance possibility parameter. The fuzzy safety integrity level (SIL) is determined for two potential accident scenarios. Findings The applicability of the proposed fuzzy model on SIS shows the importance and pertinence of the proposed fuzzy model as decision-making tools in preventing industrial hazards while taking into consideration uncertain aspects of the data used on the conventional risk graph method. The obtained results show that the use of continuous fuzzy scales solves the problem of interpreting results and provides a more flexible structure to combine risk graph parameters. Therefore, a decision is taken on the basis of precise integrity level values and protective actions in the real world are suggested. Originality/value Fuzzy logic-based safety integrity assessment allows assessment of the SIL in a more realistic way by using the notion of the linguistic variable for representing information that is qualitative and imprecise and, therefore, ensures better decision making on risk prevention.

Revising the interrelationship matrix of house of quality by the Kano model

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Arash Shahin ◽  
Sima Ebrahimi
Keyword(s):  
House Of Quality ◽  
Kano Model ◽  
Content Type ◽  
Study Results ◽  
Industrial Group ◽  
Classic Approach ◽  
Home Appliance ◽  
The Difference ◽  
Design Characteristics

PurposeThis study aims to revise the weights in the interrelationship matrix of the house of quality.Desqign/methodology/approachAfter determining customer requirements (CRs) and product design characteristics (PDCs), a house of quality (HoQ) has been developed and the interrelationships between CRs and PDCs have been determined and classified using the Kano model. The PDCs have been prioritized based on the classic HoQ and the revised HoQ. Finally the results have been compared and discussed. The television design of Entekhab Industrial Group, the largest producer of home appliance products in Iran has been selected as a case study.FindingsResults indicated different sets of priorities derived from the two approaches. Particularly, the difference between the revised HoQ and the classic approach was due to the nonlinear relationship between CRs and PDCs.Research limitations/implicationsThis study was performed merely on a single product of a company, and the case study results cannot be generalized to all of the home appliance industries.Originality/valueDeveloping the application of the Kano model in computing and revising the weights of the cells in the interrelationship matrix of HoQ is the main contribution of this paper.

Cost estimation accuracy in supply chain design

2018 ◽  
Vol 48 (10) ◽  
pp. 995-1019
Author(s):  
Jesper Normann Asmussen ◽  
Jesper Kristensen ◽  
Brian Vejrum Wæhrens
Keyword(s):  
Decision Making ◽  
Supply Chain ◽  
Cost Estimation ◽  
Supply Chain Design ◽  
Estimation Accuracy ◽  
Estimation Errors ◽  
Content Type ◽  
Longitudinal Data Collection ◽  
Embedded Case Study

PurposeThe purpose of this paper is to investigate how management attention and supply chain complexity affect the decision-making process and cost estimation accuracy of supply chain design (SCD) decisions.Design/methodology/approachThe research follows an embedded case study design. Through the lens of the behavioural theory of the firm, the SCD decision process and realised outcomes are investigated through longitudinal data collection across ten embedded cases with varying degrees of supply chain decision-making complexity and management attention.FindingsThe findings suggest that as supply chain decision-making complexity increases, cost estimation accuracy decreases. The extent to which supply chain decision-making complexity is readily recognised influences the selection of strategies for information search and analysis and, thus, impacts resulting cost estimation errors. The paper further shows the importance of management attention for cost estimation accuracy, especially management attention based on conflicting goals induce behaviours that improve estimation ability.Research limitations/implicationsA framework proposing a balance between supply chain decision-making complexity and management attention in SCD decisions is proposed. However, as an embedded case study the research would benefit from replication to externally validate results.Originality/valueThe method used in this study can identify how supply chain complexity is related to cost estimation errors and how management attention is associated with behaviours that improve cost estimation accuracy, indicating the importance of management attention in complex supply chain decision-making.

Corporate acceleration process: a systems psychodynamics perspective

2020 ◽  
Vol 33 (6) ◽  
pp. 1163-1180
Author(s):  
Piotr Wójcik ◽  
Krzysztof Obłój ◽  
Aleksandra Wąsowska ◽  
Szymon Wierciński
Keyword(s):  
Open Innovation ◽  
Negative Emotions ◽  
Acceleration Process ◽  
Content Type ◽  
Team Members ◽  
Third Phase ◽  
Multiple Case ◽  
Social Defenses ◽  
Practical Implications

PurposeThe purpose of this paper is to explore the emotional dynamics of the corporate acceleration process, using the systems psychodynamics perspective.Design/methodology/approachThe study applies inductive multiple case study of embedded 10 cases of corporate acceleration, covering both incumbent and startup perspectives, occurring in the context of a corporate accelerator.FindingsWe find that (1) the process of corporate acceleration involves three phases, each of them is dominated by a different emotional state (hope, anxiety and acceptance), triggering different behavioral responses; (2) as a means to deal with negative emotions, entrepreneurs and corporate acceleration program's team members develop different mechanisms of dealing with contradictories in subsequent acceleration phases (defense and copying mechanisms), which are reflected in their behaviors. Coping mechanisms with goal reformulation (i.e. refocus from the officially declared “open innovation” goals toward mainly symbolic ones) is an effective strategy to manage negative emotions in third phase of the acceleration.Research limitations/implicationsOur sample is limited to two relatively similar accelerators established by telecom companies, and therefore, our theoretical and practical conclusions cannot be generalized.Practical implicationsWe supplement the studies of corporate accelerators that imply how to design them better and improve decision-making rules with recommendation that in order to improve their effectiveness in terms of learning and innovations, their managers need not only to learn how to manage structural and procedural differences but also how to overcome social defenses triggered by corporate–startups cooperation.Originality/valueBy documenting a multidimensional impact of acceleration process, and especially shedding light on psychodynamic aspects behind such liaisons, this paper contributes to richer understanding of corporate–startup relationships, typically examined through a rationalistic lens of strategy literature. The study contributes to interorganizational research and open innovation literature, by showing that corporate acceleration process is marked by phases based on the type of emotions intertwined with the nature and dynamism of its life cycle. It indicates how these emotions are managed depending on their type.

Doctors’ functional leadership in psychiatric healthcare teams – a reversible leadership logic

2015 ◽  
Vol 21 (3/4) ◽  
pp. 159-180 ◽  
Author(s):  
Johan M. Berlin
Keyword(s):  
Leadership Style ◽  
University Hospital ◽  
Multidisciplinary Teams ◽  
Leadership And Management ◽  
Content Type ◽  
Team Members ◽  
Healthcare Teams ◽  
Medical Teams ◽  
Difficult Situations

Purpose – The purpose of this paper was to study how psychiatric doctors practise leadership in multidisciplinary healthcare teams. The paper seeks to answer the question: How do psychiatric doctors lead multidisciplinary teams during treatment conferences? Design/methodology/approach – Six psychiatric teams were studied at a university hospital. Each team was observed over a period of 18 months, and data were collected during four years (2008-2011). Data were collected through interviews with doctors (n = 19) and observations (n = 30) of doctors’ work in multidisciplinary psychiatric teams. Findings – Doctors in a multidisciplinary team use either self-imposed or involuntary leadership style. Oscillating between these two extremes was a strategy for handling the internal tensions of the team. Research limitations/implications – The study was a case study, performed during treatment conferences at psychiatric wards in a university hospital. This limitation means that there is cause for some caution in generalising the results. Practical implications – The results are useful for understanding leadership in multidisciplinary medical teams. By understanding the reversible logic of leadership, cooperation and knowledge sharing can be gained, which means that a situation of mere peaceful coexistence can be avoided. Understanding the importance of the informal contract makes it possible to switch leadership among team members. A reversible leadership with an informal contract makes the team less vulnerable. The team’s professionals can thus easily handle difficult situations and internal tensions, facilitating leadership and management of multidisciplinary teams. Originality/value – Doctors in multidisciplinary psychiatric teams use reversible leadership logic.

Moderator role of old and new Y generation differences in the effect of perceptions of self-efficiency on decision-making strategies

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hasan Tutar ◽  
Ahmet Tuncay Erdem ◽  
Ömer Karademir
Keyword(s):  
Decision Making ◽  
Generation Y ◽  
Self Efficacy ◽  
Quantitative Research ◽  
Business Models ◽  
Generation Gap ◽  
Management Approach ◽  
Content Type ◽  
The Difference ◽  
New Generation

Purpose There has been a rapid generational change in the business world in Turkey recently, and X generation managers are rapidly leaving their place to Y generation managers. In countries with relatively young populations such as Turkey, management in family businesses passes into the hands of Generation Y. This study aims to examine the moderator role of the difference between old and new generation Y in the effect of self-efficacy perceptions on decision-making strategies. Design/methodology/approach This research, which was designed according to the quantitative research method, was designed according to the cross-sectional survey model, one of the general survey models. The research data were collected from a sample of 441 family business managers determined according to the simple random sampling technique. The data were analyzed and interpreted with various statistical techniques. Data analysis was done with AMOS. 20 and International Business Machines statistical package for the social sciences 22 data analysis programs. Findings According to the analysis findings, there is a significant relationship between the participants’ self-efficacy perceptions and decision-making strategies. Research findings old and new generation Y managers have different decision strategies. The research results showed that the dominant self-efficacy perceptions of the Y generation affect their decision-making strategies. Research limitations/implications This research only examines whether the old and new generation Y perceptions have a moderator function in the relationship between the participants’ self-efficacy perceptions and decision-making strategies. The research is quantitative research limited to family businesses. The results can be compared by repeating the research with other variables and in different samples, for example, by researching in public institutions. In addition, the way of reflecting the differences in perception to the management can be subjected to deeper analysis with mixed studies. Practical implications One of the important reasons for the difference in people’s approaches to events is their personality structure. Generational differences, which have been discussed primarily in recent years, make themselves felt in working life. The new working models arising from the different perspectives of the Y generation differ from the traditional business models. Today, in traditional business models, the manager profile is usually the X generation. However, the process is moving toward gaining essential positions in the management levels of the new Y generation. They put traditional managers in a difficult situation with their impatient behavior and desire to climb the career ladder quickly. Social implications In the studies conducted on the Y generation, it is understood that they do not favor the classical management approach based on the command-command relationship. The sense of loyalty of the Y generation is low compared to other generations and their organizational commitment levels are weak. There are determinations that they attach importance to flexible working style and want to do business using digital technologies. They are highly motivated in setting vision and participating in strategic decisions in organizations. These features differ significantly from the X-generation managers who adopt the traditional management approach. Originality/value Both emotional and cognitive characteristics influence decision-making behavior. The generation gap which shows common personality structures in a certain period is an important predictor of decision-making strategy. Research results and related studies significantly affect the decision strategies of the generation gap. No research has been found comparing the old and new Y generations. In this respect, it is thought that the research will contribute to theory, practice and method.

Assessing ventilation strategies in a school with observed indoor air problems

Facilities ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ulrika Uotila ◽  
Arto Saari ◽  
Juha-Matti Kalevi Junnonen ◽  
Lari Eskola
Keyword(s):  
Decision Making ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Final Decision ◽  
Target Number ◽  
Content Type ◽  
Existing Building ◽  
Ventilation Strategies

Purpose Poor indoor air quality in schools is a worldwide challenge that poses health risks to pupils and teachers. A possible response to this problem is to modify ventilation. Therefore, the purpose of this paper is to pilot a process of generating alternatives for ventilation redesign, in an early project phase, for a school to be refurbished. Here, severe problems in indoor air quality have been found in the school. Design/methodology/approach Ventilation redesign is investigated in a case study of a school, in which four alternative ventilation strategies are generated and evaluated. The analysis is mainly based on the data gathered from project meetings, site visits and the documents provided by ventilation and condition assessment consultants. Findings Four potential strategies to redesign ventilation in the case school are provided for decision-making in refurbishment in the early project phase. Moreover, the research presents several features to be considered when planning the ventilation strategy of an existing school, including the risk of alterations in air pressure through structures; the target number of pupils in classrooms; implementing and operating costs; and the size of the space that ventilation equipment requires. Research limitations/implications As this study focusses on the early project phase, it provides viewpoints to assist decision-making, but the final decision requires still more accurate calculations and simulations. Originality/value This study demonstrates the decision-making process of ventilation redesign of a school with indoor air problems and provides a set of features to be considered. Hence, it may be beneficial for building owners and municipal authorities who are engaged in planning a refurbishment of an existing building.

Integration between knowledge management and business process management and its impact on the decision making process in the construction sector: a case study of Jordan

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sami Wasef Abuezhayeh ◽  
Les Ruddock ◽  
Issa Shehabat
Keyword(s):  
Decision Making ◽  
Knowledge Management ◽  
Business Process Management ◽  
Process Management ◽  
Business Processes ◽  
Decision Makers ◽  
Decision Making Process ◽  
Construction Sector ◽  
Content Type

Purpose The purpose of this paper is to investigate and explain how organizations in the construction sector can enhance their decision-making process (DMP) by practising knowledge management (KM) and business process management (BPM) activities. A conceptual framework is developed that recognises the elements that impact DMP in terms of KM and BPM. The development of this framework goes beyond current empirical work on KM in addition to BPM as it investigates a wider variety of variables that impact DMP. Design/methodology/approach A case study is undertaken in the context of the construction industry in Jordan. A theoretical framework is developed and assessment of the proposed framework was undertaken through a questionnaire survey of decision-makers in the construction sector and expert interviews. Findings The outcomes of this research provide several contributions to aid decision-makers in construction organizations. Growth in the usage of KM and BPM, in addition to the integration between them, can provide employees with task-related knowledge in the organization’s operative business processes, improve process performance, promote core competence and maximise and optimise business performance. Originality/value Through the production of a framework, this study provides a tool to enable improved decision-making. The framework generates a strong operational as well as theoretical approach to the organizational utilization of knowledge and business processes.

Judicial corruption: the case of Nigeria

2018 ◽  
Vol 25 (4) ◽  
pp. 926-939
Author(s):  
Vasudev Das
Keyword(s):  
Practical Implication ◽  
Self Control ◽  
Reasonable Doubt ◽  
Social Implication ◽  
Content Type ◽  
Judicial Corruption ◽  
Causative Factors ◽  
Study Results ◽  
Low Self Control

Purpose The purpose of this paper is to diagnostically explore the phenomenon of judicial corruption in Nigeria, its causative factors and generate strategies such as sonic therapeutic intervention, among others, that would facilitate an amelioration of the situation. The judiciary which is supposed to be last hope of justice for the Nigerian citizenry has been proven beyond reasonable doubt to have been infected with the virus of corruption, and therefore, an urgent call for action to rectify the situation is imperative. Design/methodology/approach The study uses a qualitative approach rooted in case study tradition. Findings The findings showed that power and testosterone, cheating proclivity, family pressure, qualitative passion and ignorance, low self-control, inordinate kleptocratic desire, unrestrained mind and sensory modalities, phenomenological mindset and identity crisis as endogenous contributive factors of judicial corruption in Nigeria. Research limitations/implications The limitation of the study stemmed from the fact that inasmuch as a perception of corruption and corruption are cultural phenomena, the study results cannot be generalizable. Practical implications The practical implication of the research is rooted in the fact that the Nigerian judiciary can gain from the study results and recommendation(s) if implemented without fear or favor for the overall renewal of the judiciary and the nation at large. Social implications The study is geared toward ameliorating the Nigerian corrupt judiciary or repositioning the judiciary on its pivotal dignity, and hence, its social implication cannot be overemphasized inasmuch as a positive social change would prevail if the study results and recommendation(s) are aligned with and implemented. Originality/value Inquiry on judicial corruption through the lens of qualitative research with Nigeria as a case study is highly understudied, and hence, this research fills the gap in the financial crime literature.

Managing records and archives in a Hong Kong school: a case study

2018 ◽  
Vol 28 (2) ◽  
pp. 204-216 ◽  
Author(s):  
Eric C.K. Cheng
Keyword(s):  
Decision Making ◽  
Hong Kong ◽  
Management Practices ◽  
Management Approach ◽  
Record Management ◽  
Records Management ◽  
Top Down ◽  
Bottom Up ◽  
Content Type

Purpose This study aims to explore the principles and practices for managing records with the lens of functional analysis and knowledge management by using a case study that focuses on the experience of implementing records management at a public high school in Hong Kong. Design/methodology/approach A single case study is chosen as the research method for this paper. A series of qualitative interviews and documentary analysis were used to collect and triangulate the qualitative data. Findings The results show that the case school adopted a hybrid top-down and bottom-up approach to record management, facilitate decision-making and manage knowledge. The school adopted the taxonomy provided by the quality assurance framework as the functional classification in a digital archive in the records management system. Practical implications This study provides a set of taxonomy and a hybrid top-down and bottom-up approach to schools for ensuring that accurate information of all school activities is kept and can facilitate an effective and evidence-based, decision-making process. Social implications Identifying taxonomy and management practices for effective documentation in public schools can support planning, assist with organising the continuity of improvement plans and increase reporting and accountability to society. Originality/value This study offers a taxonomy and management approach to the literature of records management and the practices for promoting and improving records management in school.

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