Project scheduling improvement using design structure matrix
- Authors: Gunawan, Indra , Ahsan, Kamrul
- Date: 2010
- Type: Text , Journal article
- Relation: International Journal of Project Organisation and Management Vol. 2, no. 4 (2010 2010), p. 311-327
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- Description: A challenging aspect of managing the development of complex projects is the notion of design iteration or rework. Traditional project management tools such as program evaluation and review technique (PERT), critical path method (CPM), and Gantt chart allow the modelling of sequential and parallel processes in projects, but they fail to address interdependency of feedback and iteration. Design structure matrix (DSM) is a new approach to project management, used to represent, analyse dependencies among tasks and show the order in which tasks are performed. In this paper, a case of the petroleum oil field development project is demonstrated. The project duration of the petroleum oil field development project is reduced significantly by applying the DSM method.
Application of fuzzy risk analysis for selecting critical processes in implementation of SPC with a case study
- Authors: Khorshidi, Hadi , Gunawan, Indra , Nikfalazar, Sanaz
- Date: 2016
- Type: Text , Journal article
- Relation: Group Decision and Negotiation Vol. 25, no. 1 (2016), p. 203-220
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- Description: Fuzzy risk analysis is widely used in risk assessment of components by linguistic terms. Fuzzy numbers are used to quantify the associated uncertainty. This study employs fuzzy risk analysis to evaluate processes for implementing statistical process control (SPC) in a specified manufacturing system. To reach this goal, fuzzy risk analysis has been applied based on both ranking and similarity of generalized trapezoidal fuzzy numbers in a stepwise procedure. Therefore, a new approach has been introduced for fuzzy risk analysis of processes to overcome the shortcomings of previous fuzzy risk analysis approaches. As a result, fuzzy risk analysis is used as a decision making technique to select critical processes under uncertainty. Also, the application of the proposed SPC implementation algorithm is illustrated in the manufacturing line of a car battery factory. © 2015, Springer Science+Business Media Dordrecht.
Statistical process control application on service quality using SERVQUAL and QFD with a case study in trains' services
- Authors: Khorshidi, Hadi , Nikfalazar, Sanaz , Gunawan, Indra
- Date: 2016
- Type: Text , Journal article
- Relation: TQM Journal Vol. 28, no. 2 (2016), p. 195-215
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- Description: Purpose - The purpose of this paper is to implement statistical process control (SPC) in service quality using three-level SERVQUAL, quality function deployment (QFD) and internal measure. Design/methodology/approach - The SERVQUAL questionnaire is developed according to internal services of train. Also, it is verified by reliability scale and factor analysis. QFD method is employed for translating SERVQUAL dimensions' importance weights which are derived from Analytic Hierarchy Process into internal measures. Furthermore, the limits of the Zone of Tolerance are used to determine service quality specification limits based on normal distribution characteristics. Control charts and process capability indices are used to control service processes. Findings - SPC is used for service quality through a structured framework. Also, an adapted SERVQUAL questionnaire is created for measuring quality of train's internal services. In the case study, it is shown that reliability is the most important dimension in internal services of train for the passengers. Also, the service process is not capable to perform in acceptable level. Research limitations/implications - The proposed algorithm is practically applied to control the quality of a train's services. Internal measure is improved for continuous data collection and process monitoring. Also, it provides an opportunity to apply SPC on intangible attributes of the services. In the other word, SPC is used to control the qualitative specifications of the service processes which have been measured by SERVQUAL. Originality/value - Since SPC is usually used for manufacturing processes, this paper develops a model to use SPC in services in presence of qualitative criteria. To reach this goal, this model combines SERVQUAL, QFD, normal probability distribution, control charts, and process capability. In addition, it is a novel research on internal services of train with regard to service quality evaluation and process control. © 2016 Emerald Group Publishing Limited.
Analysis of education and practical relevance of project management topics in New Zealand
- Authors: Gunawan, Indra
- Date: 2015
- Type: Text , Journal article
- Relation: International Journal of Project Organisation and Management Vol. 7, no. 2 (2015), p. 174-183
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- Description: The objective of this paper is to analyse the education of project management (PM) and its practical relevance in New Zealand. The research has been done through a survey analysis of PM practitioners and academics. The PM practitioners were asked which PM topics are widely used in the industry. The academics were also asked through a parallel survey which PM topics are considered important at a tertiary level and taught to students. It can be seen from the results that contemporary education of PM has improved vastly and is relevant with its practice. The findings are important for both practitioners and academics to identify the gap between project management education and industry needs. Copyright © 2015 Inderscience Enterprises Ltd.
Integrating SWOT analysis into the FMEA methodology to improve corrective action decision making
- Authors: Sutrisno, Agung , Kwon, Hyuckmoo , Gunawan, Indra , Eldridge, Stephen , Lee, Tzongru
- Date: 2016
- Type: Text , Journal article
- Relation: International Journal of Productivity and Quality Management Vol. 17, no. 1 (2016), p. 104-126
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- Description: Improving the method for selecting risk-based competing improvement strategies has equal importance with failure risk quantification inthe FMEA methodology. Nevertheless, there are few studies which focus on this issue. Furthermore, the influence of factors relating to the businessenvironment which may support or derail improvement efforts is not considered in previous studies. In order to address these limitations, a model is proposed in which the impact of environmental factors is considered byintegrating SWOT analysis into the FMEA method in order to support the appraisal of competing risk-based improvement efforts. The impact of SWOTvariables is deployed using a decision support model based upon the benefit, cost, opportunity, risk and organisational readiness index (BCOR2) approach inorder for the FMEA team to select from competing corrective actions. A case example from industry is provided in which the proposed model is applied. This example illustrates that this new model contributes successfully to good practice by identifying the most appropriate corrective action option to take andimproves upon the decisions provided by existing developments of the FMEA methodology.