A project with parallel activities
A project is a task which is temporally and well planned in that it has a start time and finish time. There is the number of resources that a project should use. If managed well it should use minimal resources. A project that is done in parallel is the one which activities are done in any order without minding which comes first and which next (Chanas, Stefan, and Paweł Zieliński, 85). For example when it comes to the time of paying bills and all of them are due on the same date, one can start with any as long as you will pay all of them. Another example is several customer cares serving all the clients at the same time.
A sequential project
In a sequential project, one task has to be completed to continue to the next job. For example in building construction, one has to complete the foundation before proceeding to the ground floor and the first floor. Another example is where one is making payment in a bank, and later he will need that receipt to input data into the system.
Bibliography
Chanas, Stefan, and Paweł Zieliński. "Critical path analysis in the network with fuzzy activity times." Fuzzy sets and systems122.2 (2001): 195-204.