Modeling and Simulating the Quality of Sequential Iterative Development Processes

Zhang, Weimin; Zhu, Mincai; Chen, Hongmin; Zhou, Bosheng; Luo, Wenjie

doi:10.1109/itcs.2009.289

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…In Equation 2, "• * " represents the dot multiplication operation. Equation 3 represents the sum of the completion time in each stage, which is equal to the total expected completion time of the iterative processes (Zhang et al 2008).…”

Section: Methodology Dsm Model Construction and Optimizationmentioning

confidence: 99%

“…Cho and Eppinger (2005) improved the method through considering iteration, rework amount, and learning curve stochastically. Zhang et al (2007Zhang et al ( , 2008 further improved the Reward Markov Chain method and used different factor for the rework amount, rework probability, and learning curve in various iterations. This research adopts the method proposed by Zhang et al, as their model is closer to reality.…”

Section: Figure 1 Dsm Presentation Of the Relationships Between Actimentioning

confidence: 99%

See 1 more Smart Citation

Planning and Scheduling Prefabrication Construction Projects Using Dependency Structure Matrix (DSM)

Zhang¹,

Flood²

2014

Computing in Civil and Building Engineering (2014)

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Fast project delivery is a common goal for all participants (owners, constructors, vendors, etc.) within the construction industry. Prefabrication is attractive because it offers an approach to complete construction projects within a much shorter duration than traditional construction methods (Retik 1994). However, the successful completion of prefabrication projects requires careful planning prior to implementation. The complex nature of prefabrication project scheduling makes traditional scheduling tools (CPM, PERT, Gantt charts, etc.) ineffective due to a common phenomenon termed iteration. Iteration is a cyclic process and results from activity interdependency. Dependency Structure Matrix (DSM) is an alternative approach that has had much success in manufacturing but has seen limited application in construction. It offsets the shortcomings of the traditional scheduling tools in dealing with the phenomenon of iteration. This paper first discusses the applicability of DSM to prefabrication projects. An example model that demonstrates the application of DSM is then developed and used to demonstrate determining an optimal schedule in terms of total feedback distance. To improve the accuracy of project duration estimations, the Reward Markov Chain method is employed to estimate durations of sequential iterations. In addition, an example of using the Reward Markov Chain method is demonstrated. The paper concludes with a discussion of the advantages and disadvantages of the approach.

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Section: Methodology Dsm Model Construction and Optimizationmentioning

confidence: 99%

Section: Figure 1 Dsm Presentation Of the Relationships Between Actimentioning

confidence: 99%

Planning and Scheduling Prefabrication Construction Projects Using Dependency Structure Matrix (DSM)

Zhang¹,

Flood²

2014

Computing in Civil and Building Engineering (2014)

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“…A design structure matrix (DSM) is a square matrix [3,5,6]. The elements on the main diagonal denote the activities of the design process.…”

Section: Design Structure Matrixmentioning

confidence: 99%

“…For example, in the DSM in Fig.1, activity Act 1 provides one or more deliverables for Act 2 and Act 5 . Activity Act 2 relies on the deliverables from Act 1 and Act 6 and provides deliverables for Act 3 and Act 4 .…”

Section: Design Structure Matrixmentioning

confidence: 99%

Software Process Integration Based on Design Structure Matrix

Zhang

Jia²

2011

Communications in Computer and Information Science

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Abstract.A software lifecycle is composed of many software processes which are not independent. In order to improve a process, the process should be integrated into a larger process context environment and the synchronization between processes should be insured. This paper introduces the concept of process modeling and the design structure matrix (DSM) describing complex process systems. By using software process integration as an example, the method of integrating software processes based on DSM is discussed. By analyzing and rearranging the DSM of the integrated process purposely, the process could be improved to reduce the iterative rework in the process and the whole process completion time could be shortened.

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Modeling and Simulating the Quality of Sequential Iterative Development Processes

Cited by 3 publications

References 5 publications

Planning and Scheduling Prefabrication Construction Projects Using Dependency Structure Matrix (DSM)

Planning and Scheduling Prefabrication Construction Projects Using Dependency Structure Matrix (DSM)

Software Process Integration Based on Design Structure Matrix

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