“…Based on these definitions, which are central to PMS design, a PMS is defined as 'a set of metrics used to quantify both efficiency and effectiveness of actions' (Neely, Gregory, & Platts, 1995, p. 81), while a KPI is 'a metric used to quantify the efficiency and/or effectivity of an action' (Neely et al, 1995, p. 80). To measure efficiency and effectiveness, four types of KPIs exist: input, process, output and outcome (Ammons, 1995;Hoque & Adams, 2011;Pollanen, 2005).…”