Sunday, July 30, 2006

Line of Balance(LOB)

Line-of–Balance (LOB) method is a project planning and control method which in projects with repetitive nature has proved to be more efficient than the network techniques like CPM and Petri-nets. Much of the reason for superiority of LOB to other planning methods is because it considers an additional dimension (unit of production) in the representation of the activities. Unfortunatly this method is not well introduced in the Project Management litrature. The following references are recommended for the readers:

Arditi, D., P. Sikangwan, et al. (2002). "Scheduling system for high rise building construction." Construction Management and Economics 20: 353-364.

Arditi, D., O. Tokdemir, et al. (2002). "Challenges in Line-of-Balance Scheduling." Journal of Construction and Engineering Management 128(6): 545-556.

Harris, R. B. and P. G. Ioannou (1998). Repetitive Scheduling Method. UMCEE Report No.98-35. Ann Arbor, University of Michigan.

Lumsden, P. (1968). The line-of-balance method. Oxford, Pergamon Press.

Mendes, R., L. Fernando, et al. (1998). Replanning Method for Multi-Story Building Construction using Line of Balance. International Group of Lean Construction Conference.

Currently I am writing a teaching case study which describes a real case where application of LOB has been proved to be beneficial. The case study is in review and will soon appear in ECCH case study collections. visit http://www.ecch.com/

Unfortunatly the most well known project management softwares like MS Project and Primavera do not provide any feature to develop LOB plans. The most well developted software for LOB in my appinion is Dynaproject from Graphisoft. Visit www.dss.fi

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