PERT
Project evaluation and review technique (PERT) was developed in the 1950s to support the U.S. Navy’s Polaris missile project. PERT is used to estimate activity duration times. It uses a statistical approach to estimate the time that will be required to complete project work activities.
CPM
Critical path method (CPM) was developed for the DuPont Corporation to help with projects in their manufacturing plants. CPM is also used for estimating project activity durations, but CPM assumes that the estimates do not vary and time can be reliably estimated.
CCPM
Critical chain project management (CCPM) focuses on managing the uncertainties of a project. CCPM assumes that resources available to complete the project are in limited supply and it specifically plans to ensure resource availability.
Waterfall Method
traditional practice which found its best use in software and hardware development. In this method, the project work flows downward like water falling over a ledge. This process flows logically and in a linear fashion, but if any problems are found, returning the work back to the previous step is very expensive
processes completed during initiating stage include:
Processes completed during planning
processes in Executing
Monitoring and controlling
monitoring and controlling is positioned as an iterative activity which occurs while the project work is being executed.
processes during closing
Traditional project management methods
Agile Methods
is an iterative approach to project management where the project team works closely with the customer to deliver projects in usable chunks
Scrum
project process in which a cross-functional team worked closely together to create continuous improvements