Một số nguyên tắc (trong quản lý dự án)

80/20 rule: Nguyên tắc Perato
8/80 rule: Nguyên tắc đặt độ dài tối thiểu của work package là 8h và tối
đa là 80h
100% rule: WBS phải cover được 100% lượng phạm vi của dự án.

The Pareto principle (also known as the 80–20 rule, the law of the vital
few, and the principle of factor sparsity) states that, for many events,
roughly 80% of the effects come from 20% of the causes

The 8/80 Rule says that no work package should be less than 8 hours or
greater than 80 hours. Notice we said that the work package is the
lowest level of the WBS. Activities and tasks are not included in the WBS.

The 100% rule states that the WBS includes 100% of the work defined by
the project scope and captures all deliverables – internal, external,
interim – in terms of the work to be completed, including project
management.

The 100% rule is one of the most important principles guiding the
development, decomposition and evaluation of the WBS. The rule applies
at all levels within the hierarchy: the sum of the work at the "child"
level must equal 100% of the work represented by the "parent" and the
WBS should not include any work that falls outside the actual scope of
the project, that is, it cannot include more than 100% of the work… It
is important to remember that the 100% rule also applies to the activity
level. The work represented by the activities in each work package must
add up to 100% of the work necessary to complete the work package.

--
Best Regards,
Nguyen Hung Vu [aka: NVH] (in Vietnamese: Nguyễn Vũ Hưng, グェン　ヒュン　ウー, 阮武興)
vuhung16plus{remove}@gmail.dot.com , YIM: vuhung16 , Skype:
vuhung16plus, twitter: vuhung, MSN: vuhung16.
http://www.facebook.com/nguyenvuhung
Nguyễn Vũ Hưng's blog on Free and Open Source:
http://nguyenvuhungvietnam.wordpress.com/
Học tiếng Nhật: http://hoc-tiengnhat.blogspot.com/
Vietnamese LibreOffice: http://libo-vi.blogspot.com/
Mozilla & Firefox tiếng Việt: http://mozilla-vi.blogspot.com/

Disclaimer: When posted to social networking groups include, but not limited Linux Users' Groups,
Free and Open Sources forums, mailing lists, the above is my personal opinion and is *not*
the opinion of my employer(s), associations and/or groups I join.