Instructions: Please comment on both discussion posts below in 200 words.
Post 1
The first company, if you will, to create and use the WBS system is the United States Department
of Defense. This concept was a part of the "Polaris mobile submarine-launched ballistic missile
project" (Haughey, 2014). The project completion worked good with the WBS, so the DOD
published it and mandated the use of WBS in future projects of this scope and size. "WBS is an
exhaustive, hierarchical tree structure of deliverables and tasks that need to be performed to
complete a project" (Haughey, 2014). The reason for developing it was to be able to reduce
complicated activities to a collection of tasks that can then be measured with clearly defined
limits.
Work Cited
Haughey, D. (2014). A Brief History of Project Management
Retrieved July 20, 2017, from https://www.projectsmart.co.uk/brief-history-of-projectmanagement.php
Post 2
The Work Breakdown Structure (WBS) is a key project management tool that minimizes very
large sets of assignments, to a more manageable documentation (Brown & Hyer, 2010). For
example, it can be utilized for a project with a variety of participants with differing and
overlapping responsibilities in the form of diagram. WBS consists of a variety of deliverables
that align with the concepts from a project charter. It was first presented in the late 1950s by the
United States Department of Defense with the structure of their Program Evaluation and Review
Technique (PERT) (Feming & Koppelman, 1994). By 1957, the United States Navy had
implemented the design of WBS with PERT to further assist with their Polaris missile program.
As the “first submarine-launched ballistic missile” in the world, it was necessary to have a
sophisticated and well organize management tool (2005 Marks 50 Years). In more detail, WBS
was not used at the time, but was revised numerous of times to provide project deliverables,
SCOPE project start and end times (Wan-yin Du, 2014). Along with the techniques of providing
the budget for the SCOPE of a project and naming individuals related to the SCOPE (Wan-yin
Du, 2014). References
2005 Marks 50 Years for U.S. Navy Strategic Systems Programs And For Contractor Lockheed
Martin. (2005, Oct 12). PR Newswire Retrieved from
http://search.proquest.com.ezproxy.saintleo.edu/docview/451348049?accountid=4870
Brown, K. A., & Hyer, N. L. (2010). Managing projects: a team-based approach. New York:
McGraw-Hill Irwin.
Fleming, Q. W., & Koppelman, J. M. (1994). The essence and evolution of earned
value. Transactions of AACE International, 1994, 73. Retrieved from
http://search.proquest.com.ezproxy.saintleo.edu/docview/208190517?accountid=4870 Wan-yin Du (2014). Researching of Project Management Information Systems Based on
WBS . Trans Tech Publications, Switzerland, 2014. Retrieved from
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.931.4763&rep=rep1&type=pdf

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