Gopi Chattopadhyay

TL;DR: In this paper, the authors focus on defining lifetime, developing lifetime warranty policies and models for predicting failures and estimating costs for Lifetime Warranty policies, which is relatively a new concept and modeling of failures during the warranty period and the costs for such policies are complex since the lifespan in these policies are not defined well and it is often difficult to tell about life measures for the longer period of coverage due to usage pattern/maintenance activities undertaken and uncertainties of costs over the period.

TL;DR: In this paper, the authors investigated the duration of the project phases to establish the human resource requirements through the selection, implementation and support of the ERP project and analyzed preimplementation training costs and ongoing license upgrade costs as a percentage of the implementation cost.

TL;DR: Various long-term warranty policies and mathematical models are reviewed for estimation of warranty servicing costs due to the uncertainties surrounding usage, preventive maintenance and warranty servicing strategies.

TL;DR: An analysis of failure data of solenoid coils of automatic internal grinding machine used in a bearing manufacturing plant is presented and various replacement and change of design options such as introduction of pneumatic system in place of electromagnetic solenoids for improvement of reliability of the plunger movement mechanism are analyzed.

TL;DR: In this paper, a conceptual multi-criteria hierarchical model for managerial decisions is proposed for measuring maintenance performance in a big organization, where the complexity of maintenance performance measurement is further increased for multiple criteria objectives.