But the knowledge usually is not specific to a unit or functional area.
Therefore, it does not affect an individual's job in any formal way. Its use is not a rourine
requird practice (i.e., use is ad hoc),and typically, each piece of knowledge
is not reused as extensively as in a knowledge hierarchy . Because users are often
from defferent units, the knowledge typically is not custom-fitted to a user's context.
Instead ,each user must contextualize the knowledge for his or her own environment and purposes.