Likewise, the early finish/late finish dates are the same. On the critical path, the early start/late start dates are identical. Not knowing better, I did not consider that the early dates were not very helpful. That is to say, the project end date changes depending on progress. But when my employer switched to Primavera Project Planner in 1987, well, I learned another approach to CPM Scheduling.Īll of my early schedules relied upon a floating project end date.
I then spent several years using a proprietary software program owned by the consulting firm that hired me as a scheduler. Having just graduated from university two years earlier with my first CPM Schedule already under my belt, I assumed I understood basic scheduling concepts pretty well. Primavera Systems introduced a novel concept when it released Primavera Project Planner in 1983.