scholarly journals A Systematic Approach to Modelling Change Processes in Construction Projects

2012 ◽  
Vol 5 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Ibrahim Motawa

Modelling change processes within construction projects isessential to implement changes efficiently. Incomplete informationon the project variables at the early stages of projects leads toinadequate knowledge of future states and imprecision arisingfrom ambiguity in project parameters. This lack of knowledge isconsidered among the main source of changes in construction.Change identification and evaluation, in addition to predictingits impacts on project parameters, can help in minimising thedisruptive effects of changes. This paper presents a systematicapproach to modelling change process within construction projectsthat helps improve change identification and evaluation. Theapproach represents the key decisions required to implementchanges. The requirements of an effective change processare presented first. The variables defined for efficient changeassessment and diagnosis are then presented. Assessmentof construction changes requires an analysis for the projectcharacteristics that lead to change and also analysis of therelationship between the change causes and effects. The paperconcludes that, at the early stages of a project, projects with a highlikelihood of change occurrence should have a control mechanismover the project characteristics that have high influence on theproject. It also concludes, for the relationship between changecauses and effects, the multiple causes of change should bemodelled in a way to enable evaluating the change effects moreaccurately. The proposed approach is the framework for tacklingsuch conclusions and can be used for evaluating change casesdepending on the available information at the early stages ofconstruction projects.

Author(s):  
Guillermo Nevett ◽  
Paul M. Goodrum ◽  
Ray L. Littlejohn

Creating accurate estimates for the duration of road transportation projects is a challenging task that estimators and engineers have to face daily, and a lack of understanding of what drives such durations is a big contributor to this challenge. This paper expands on the efforts created by previous research efforts, not only by adding more variables to the model, but also by combining all project sizes and types into a single model. These additions increased the amount of explained variability, and the range of projects that can be studied with one model. This paper aims to determine which of the variables analyzed best predict project durations.


2009 ◽  
Vol 36 (3) ◽  
pp. 439-449 ◽  
Author(s):  
Yi Zou ◽  
Sang-Hoon Lee

Change orders are ubiquitous in construction projects, and effective and efficient control of changes is critical to project success. There have been many empirical suggestions as to how to manage changes for best project outcomes, but this research is specifically aimed at exploring the relationship between project characteristics and the implementation of project change management best practices (PCMBP). Construction project data for this research are derived from the Construction Industry Institute (CII) benchmarking and metrics (BM&M) database. Binary logistic regressions and factorial analysis of variance (ANOVA) are performed to find out the differences among diverse types of projects in terms of the extents to which the PCMBP elements have been implemented. The findings can assist construction industry practitioners with using PCMBP more purposefully in accordance with specific project characteristics so that they will be better able to develop and administer their project execution plans.


2002 ◽  
Vol 40 (1) ◽  
pp. 35-49 ◽  
Author(s):  
Morris Abraham ◽  
Tim Sullivan ◽  
Des Griffin

A survey of 19 museums across the USA sought to identify the change processes associated with the effective management of a specific case of legislated change imposed by The Native American Graves Protection and Repatriation Act 1990 (NAGPRA). Interviews were also conducted with a sample of these museums to understand further the change process adopted. It was hypothesised that those organisations which were perceived by respondents to have achieved successful change outcomes, would have managed the change transition in accordance with generic change principles in the change literature, regardless of the legislated nature of the change. The findings provided strong support for these general principles of effective change management in situations where the organisation has little choice about the change initiative. However the legislated nature of the change and the initial lack of understanding of its scope and implications produced some deviations from these general principles, particularly with respect to the dimensions of visioning, participation and allocation of resources to the change program.


2003 ◽  
Vol 5 (1) ◽  
pp. 33
Author(s):  
Mohd Nazzari Ismail ◽  
Shreen Ahmad

This paper investigates various system models and change guidelines that deal with the dynamics of successful change. It seeks to find out whether Malaysian organizations which have achieved successful change outcomes would have also managed the change process in accordance to the general guidelines derived from the literature on  effective management of change. Primary data for this study was obtained by conducting a mailed questionnaire survey among executives and managers of seventeen Malaysian organizations. The main method of analysis is by  looking at the correlation between an organization’s scores on the relevant items in the change process scales and the organization’s perceived effectiveness of change, as measured by the organization’s change effectiveness scores.The general finding confirms and reinforces the literature on effective change management.  It was found that organizations that were perceived by staff to have achieved successful change outcomes, were also perceived to have managed the change processes well in accordance to general principles derived from research on organizational change.


2012 ◽  
Vol 18 (1) ◽  
pp. 114-124 ◽  
Author(s):  
Li-Ren Yang ◽  
Jieh-Haur Chen ◽  
Chung-Fah Huang

Poor project requirements definition and management (RDM) is one of the major causes of project failure. However, many organizations do not adequately manage a project's requirements leading to a poor design basis. Thus, quality of requirements is critical to the success of any construction project. The primary purpose of this research was to investigate the mediating effect of requirements quality on the relationship between RDM practice and project performance. The second objective was to determine whether the impact of RDM practice on project performance was moderated by project characteristics. A three-phase approach was employed to investigate construction projects in the Taiwanese building industry. The testing supports a role for requirements quality as a partial mediator in the relationship between RDM practice and project performance. The findings also indicate that project characteristics have a moderating effect on the relationship between requirements quality and overall project performance. Santrauka Prastai apibrėžti ir valdomi projekto reikalavimai – viena iš pagrindinių projekto nesėkmės priežasčių. Tačiau daug organizacijų neskiria pakankamai dėmesio projekto reikalavimų valdymui, todėl sukuriamas prastas projektavimo pagrindas. Taigi kokybės reikalavimai yra esminis sėkmės garantas bet kuriame statybų projekte. Pagrindinis šio tyrimo tikslas – išnagrinėti, kaip reikalavimų kokybė veikia jų apibrėžimo ir valdymo ryšį su projekto efektyvumu. Antrasis tikslas – nustatyti, ar projekto savybės mažina reikalavimų apibrėžimo ir valdymo poveikį projekto efektyvumui. Pritaikius trijų etapų metodą, išnagrinėti statybų projektai Taivano statybų sektoriuje. Bandymai patvirtino, kad reikalavimų kokybė iš dalies keičia jų apibrėžimo ir valdymo ryšį su projekto efektyvumu. Išvados taip pat rodo, kad projekto savybės riboja reikalavimų kokybės bendram projekto efektyvumui poveikį.


2020 ◽  
Vol 9 (2) ◽  
pp. 552
Author(s):  
Reiza Irfansyah ◽  
Budi Susetyo ◽  
Syafwandi .

The concept of Design and Build quickly becomes the preferred form of project completion. With this concept, it is possible for a project to be completed more quickly, with quality and costs according to plan. However, based on the results of research on construction projects in Jakarta, there are many that do not meet expectations.This study aims to determine the relationship of project owner factors, planner-builder factors, and project characteristics on airport design projects. Based on PLS SEM analysis of 65 respondents, it was found that the factor of the project owner has a positive but not significant effect on the performance of the Airport project, the builder planner has a negative but not significant effect on the performance of the Airport project, while the project characteristics factor has a positive and significant effect on project performance Airport.The results of this study provide confirmation and direction in the work of design projects in the future, especially for design projects at the airport.   


2018 ◽  
Vol 39 (4) ◽  
pp. 66-70
Author(s):  
Peter Hirsch

Purpose The purpose of this paper is to examine why corporations frequently do such a bad job in change communications and succumb to clichéd terminology when communicating change. Design/methodology/approach The approach was to identify particularly egregious examples of poor communications and to identify some reasons why change communications seems so difficult for large corporations. Findings Poor change communications has a number of sources. Chief of these is the failure to involve employees in the change process from the beginning and to acknowledge candidly that all change processes have losers as well as winners. Research limitations/implications The views expressed in the paper are based on the author’s own experience rather than extensively researched data. Practical implications While poor change communications will always exist, leaders who understand the natural tendency to use obscure and clichéd language in the field will be able to mitigate its effects. Social implications With trust in corporations at all-time lows, one can believe that more effective change communications will help to restore some of the lost trust between capital and labor. Originality/value While the clichéd corporate language is the frequent target of critics, there are few treatments of its connection with change communications.


2020 ◽  
Vol 4 (2) ◽  
pp. 780-787
Author(s):  
Ibrahim Hassan Hayatu ◽  
Abdullahi Mohammed ◽  
Barroon Ahmad Isma’eel ◽  
Sahabi Yusuf Ali

Soil fertility determines a plant's development process that guarantees food sufficiency and the security of lives and properties through bumper harvests. The fertility of soil varies according to regions, thereby determining the type of crops to be planted. However, there is no repository or any source of information about the fertility of the soil in any region in Nigeria especially the Northwest of the country. The only available information is soil samples with their attributes which gives little or no information to the average farmer. This has affected crop yield in all the regions, more particularly the Northwest region, thus resulting in lower food production.  Therefore, this study is aimed at classifying soil data based on their fertility in the Northwest region of Nigeria using R programming. Data were obtained from the department of soil science from Ahmadu Bello University, Zaria. The data contain 400 soil samples containing 13 attributes. The relationship between soil attributes was observed based on the data. K-means clustering algorithm was employed in analyzing soil fertility clusters. Four clusters were identified with cluster 1 having the highest fertility, followed by 2 and the fertility decreases with an increasing number of clusters. The identification of the most fertile clusters will guide farmers on where best to concentrate on when planting their crops in order to improve productivity and crop yield.


2020 ◽  
Vol 10 (1) ◽  
pp. 59-71
Author(s):  
Perrine Moran

Many couples who come for therapy are struggling with separating from unconscious phantasies and beliefs that enmesh each partner with the other, resulting in states that popular songs powerfully epitomise. While this borderline experience is common and functional in the early stages of being in love its persistence paralyses the development of the relationship. Facing separation from and loss of illusion is a challenge couple therapists are often asked to help with. The argument is illustrated by a case, and by references to some of Cole Porter’s best known songs.


2017 ◽  
Vol 11 (1) ◽  
pp. 1-20
Author(s):  
Ari Mulianta Ginting

Ekspor merupakan salah satu faktor terjadinya peningkatan pertumbuhan ekonomi suatu negara, sejalan dengan hipotesis export-led growth (ELG). Penelitian ini menganalisis perkembangan ekspor dan pertumbuhan ekonomi Indonesia periode kuartal I 2001 sampai dengan kuartal IV 2015. Penelitian ini menggunakan analisis deskriptif dalam menggambarkan perkembangan pertumbuhan ekonomi serta ekspor dan analisis kuantitatif metode Error Correction Model (ECM) dalam menganalisis efek jangka panjang dan jangka pendek dari ekspor terhadap pertumbuhan ekonomi. Pada periode penelitian, data yang ada menunjukkan bahwa ekspor dan pertumbuhan ekonomi Indonesia sama-sama mengalami peningkatan. Hasil regresi ECM menunjukkan bahwa ekspor memiliki pengaruh yang positif dan signifikan secara statistik terhadap pertumbuhan ekonomi Indonesia, yang mendukung hipotesis bahwa ELG berlaku untuk Indonesia. Berdasarkan hasil penelitian ini, maka untuk mendorong pertumbuhan ekonomi Indonesia diperlukan peningkatan kinerja ekspor Indonesia. Peningkatan kinerja ekspor Indonesia dapat dilakukan dengan berbagai cara, salah satunya adalah dengan perbaikan sistem administrasi ekspor, peningkatan riset dan pengembangan produk Indonesia, peningkatan sarana dan prasarana infrastruktur, stabilitas nilai tukar dan perluasan pasar non tradisional, termasuk perbaikan struktur ekspor komoditas. Export is one of the factors behind the economic growth which is in line with the export-led growth hypotesis (ELG). This research analyzes the relationship between economic growth and export of Indonesia during first quarter of 2001 until fourth quarter of 2015. It employs descriptive analysis to describe export movement and economic growth during the study period and ECM model to analyze the long run and the short run effects of export on the economic growth. The available information indicated that, during the study period, both export and economic growth showed similar increasing trends. The result of the ECM model revealed that export had a positive and statistically significant relationship with the economic growth, supporting the hypotesis of ELG in Indonesia. Hence, to accelerate economic growth, efforts are required to boost the export performance in Indonesia. The Export performance can be increased by several way, such as improving the export administration system, increasing the research and development of Indonesian products, improving the facilities and infrastructure, exchange rate stability and the non-tradisional markets expansion, and including improvement of the export commodity structure.


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