We study appointment scheduling problems in continuous time. A finite number of clients are scheduled such that a function of the waiting time of clients, the idle time of the server, and the lateness of the schedule is minimized. The optimal schedule is notoriously hard to derive within...

Purpose – The purpose of this paper is to study the use of the Lean Six Sigma (LSS) methodology in a construction company. Design/methodology/approach – In our study we analyze 62 LSS improvement projects carried out within a Dutch company. In our analysis we focus on both speed, in terms of...