Incorporating learning curve effects into critical resource diagramming
Critical resource diagramming (CRD) was introduced by Badiru as an extension to the critical path method (CPM) and program evaluation and review technique (PERT) approaches. Critical resource diagrams illustrate the loading and bottleneck characteristics of critical resources, but do not account for learning curve effects. Learning refers to the improved efficiency resulting from the repitition of task performances. Several alternate models of learning curves are used (- including the log-linear model, average time model, and time unit model-)to show that learning curve effects lead to decreasing task times in CRD analysis. A production interruption model (or forgetting function) demonstrates how forgetting negatively impacts the time performance of resources.