Characteristics and classification of the annualised working hours planning problems Online publication date: Sun, 13-Feb-2005
by Albert Corominas, Amaia Lusa, Rafael Pastor
International Journal of Services Technology and Management (IJSTM), Vol. 5, No. 5/6, 2004
Abstract: Annualising working hours (i.e., the possibility of irregularly distributing the total amount of the employees working hours throughout the year) is one of the means to face the seasonal nature of the demand. Annualising working hours provides much flexibility to the production system (which is one of the main principles of lean production), so the company is allowed to plan the staff working time more efficiently. However, irregular working weeks implies a worsening of the working conditions that could be compensated by reducing the workers' annual working time. On the other hand, conditions are provided in order to avoid an excessive workers' overburden in long periods of strong demand. This paper introduces Annualised Hours (AH) as a means to achieve production flexibility and proposes a classification scheme of the annualised working hours planning problems that arise in services and in manufacturing, as well as an approach for solving them by using mixed and integer linear programming and assessing the benefits of introducing AH.
Online publication date: Sun, 13-Feb-2005
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