206 research outputs found
A comparison of project control standards based on network analysis
Project control is a crucial function in project management. Over the years, several best practice standards have been developed to assist project managers in improving project control. The objective of this paper is to compare three prominent best practice models of PMBOK, PRINCE2, and the AACE framework with respect to the core processes of project control. Network analysis is used to achieve this objective. The results show that influential and linkage processes, such as Control quality, Review the stage status, Forecasting, and Change management have the most significant impacts on the complexity of the project control function. This work has the potential to help rethink the project control function by creating a more global view of the most central and critical processes for project control, from which enhancement in the ability to control the project can be drawn
A comparison of project control standards based on network analysis
Project control is a crucial function in project management. Over the years, several best practice standards have been developed to assist project managers in improving project control. The objective of this paper is to compare three prominent best practice models of PMBOK, PRINCE2, and the AACE framework with respect to the core processes of project control. Network analysis is used to achieve this objective. The results show that influential and linkage processes, such as Control quality, Review the stage status, Forecasting, and Change management have the most significant impacts on the complexity of the project control function. This work has the potential to help rethink the project control function by creating a more global view of the most central and critical processes for project control, from which enhancement in the ability to control the project can be drawn
Project characteristics, project management software utilization and project performance: an impact analysis based on real project data
Project management software packages are increasingly used by companies. These tools require a substantial financial investment, hence the importance of identifying the real contribution of project management software packages to the realization of projects. However, studies on the impacts of software packages on the performance of engineering project management are rare and mostly based on perceptions. The objective of this study is to investigate, from real project data, the level of utilization of a project management software package, developed by an engineering construction firm recognized internationally, and its link with project performance and project characteristics. Results stemming from non-parametric tests and correlation analyses show that the level of use of the software, and some of its subsystems, appears to be linked to project performance. Project duration also seems to be the most critical project characteristic
Project characteristics, project management software utilization and project performance: An impact analysis based on real project data
Project management software packages are increasingly used by companies. These tools require a substantial financial investment, hence the importance of identifying the real contribution of project management software packages to the realization of projects. However, studies on the impacts of software packages on the performance of engineering project management are rare and mostly based on perceptions. The objective of this study is to investigate, from real project data, the level of utilization of a project management software package, developed by an engineering construction firm recognized internationally, and its link with project performance and project characteristics. Results stemming from non-parametric tests and correlation analyses show that the level of use of the software, and some of its subsystems, appears to be linked to project performance. Project duration also seems to be the most critical project characteristic
The effect of health care expenditures on survival in locally advanced and metastatic Non Small Cell Lung Cancer
Context: The significant survival benefit of chemotherapy over best supportive care for locally advanced and metastatic NSCLC has been amply demonstrated in the literature. However, there is no clear evidence of the impact of the type of chemotherapy or of a superiority of combination chemotherapy over single-agent chemotherapy.Objective: The present study empirically examines, in real-life practise and using multiple proxies, the impact of health care expenditures on overall survival in locally advanced and metastatic NSCLC in order to guide medical decision-making.Methods: Disease characteristics, the resources used, the costs of treatment and survival data were retrospectively collected from the records of 175 patients treated between 2000 and 2004 at Léon Bérard Regional Cancer Center (Lyon, France). Survival data were modelled using multivariate Cox models and controlled for endogeneity with the instrumental variable method.Results: The median survival for the whole cohort was 289 days. The average total cost of treatment reached €35,160. Survival was significantly shorter for patients with stage IV disease, poor performance status, and past or concomitant cardiovascular disease and/or diabetes, for current smokers, and for patients with adenocarcinoma compared to large cell carcinoma. Survival duration was not significantly associated with the total cost of treatment per day of hospitalisation, the number of chemotherapy drugs administered, nor inpatient length of stay.Conclusion: Higher care expenditures do not appear to improve survival for patients with locally advanced or metastatic NSCLC. Hence, maintaining patient quality of life and tailoring therapy to stage, histology and comorbidities appears to be the less bad choice.Cost; NSCLC; Oncology; Survival
Real-Time Detection of Gas-Phase Organohalogens from Aqueous Photochemistry Using Orbitrap Mass Spectrometry
SSCI-VIDE+CARE+MRT:CEM:SPR:CGOInternational audienceMarine short-lived halogenated compounds, emitted from algae, phytoplankton, and other marine biota, significantly affect both the troposphere and the stratosphere. Here, we show that such compounds might also be photochemically produced through photosensitized reactions in surface water. Gas-phase products were detected and identified by high-resolution mass spectrometry, more particularly by means of an atmospheric pressure chemical ionization source coupled to an Orbitrap mass spectrometer. Under simulated solar irradiation, halogenated organic compounds were produced and detected in the gas phase when a proxy of dissolved organic matter, i.e., 4-benzoylbenzoic acid, was excited into its triplet state. We present a mechanism explaining the formation of a variety of such halogenated compounds. These photochemical reactions take place at the air/sea interface and are, therefore, a potential source of short-lived halogenated compounds in the atmosphere, participating in the tropospheric halogen cycle
The core processes of project control: A network analysis
ABSTRACT: Project control requires many processes which differ from one project management standard to another. In this paper, project control is investigated based on two different standards: PMBOK and PRINCE2. The aim is to identify which processes are central to project control through network analysis. The results open up a new vision of looking at project control by stating that not only the traditional triangle of quality, time, and cost control but also change control and corrective action decision-making are at the core of project control
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