WKC1 - WTF?

[Xtkjdtr]

8.7.6.2 Level 2 -area

Level 2 of the WBS defines the Disciplines of Level 1. The Discipline categories are:

Common
WKC1
MS
Center

What is WKC1?
В целом говорится о системе управления проектом, иерархической структуре работ.

[Xtkjdtr]

And what is MS?
Milestone?