Within a domain a concept by definition possesses unambiguous meaning (e.g. in the
context of celebrating Christmas a Christmas tree is never a wellhead). Nonetheless,
individuals typically have their own connotation of concepts. For example, some think
of a Christmas tree (see Decorated fir tree from Figure 1.2) with only tinsel and
Christmas lights while others imagine ornaments and Christmas lights but not tinsel. In
this example, there are different connotations of the common concept Christmas tree
while the overall conceptual notion of the concept is shared. Typically within industries
and disciplines the terminology is more formally defined, however different
connotations are still common (Sandsmark & Mehta, 2004).