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192 Chapter 6

Data warehouse

Fill out Forms
Sales, operational
data
Analyze data
Capture (sequence, time,
log file frequency, ....) Data resellers,
data
e.g., Polk, SRI

From cookies, internet,
intranet, personal Demographics,
devices, different pyschographics
countries, times...

Behavior
Validate
model Dynamic
user
profile

Figure 6.6
Dynamic profi ling system design

performance, for example, setting a minimum threshold that must be reached in order
for the worker to be able to understand and make appropriate use of the knowledge
object. This can in turn be incorporated into a user model. The Bloom taxonomy
serves as a means of determining not only what knowledge workers are expected to
do (usually referred to as skills or expertise) but also the level of performance that is
expected (also referred to as mastery level). For example, using the cognitive skill
portion of the Bloom taxonomy, it is possible to characterize a particular knowledge
object, say a best practice procedure on how best to present a project team member ’ s
resume when preparing a project proposal. The knowledge worker who prepares the
bid would be expected to have a level of understanding that allows for critical judg-
ment in order to be able to execute this task at the required profi ciency level. He or