In the second example we read (wrote):
"The E2 Temporal Entity class is an abstract class (i.e. it has no instances) that serves to group together all classes with a temporal component, such as instances of E4 Period, E5 Event and E3 Condition State."
Martin 26/3/2010 (by email)
Martin proposed to be changed to:
"The E2 Temporal Entity class is an abstract class (i.e. it has no direct instances) that serves to group together all classes with a temporal component, such as instances of E4 Period, E5 Event and E3 Condition State."
Vladimir has proposed to be changed to:
"The E2 Temporal Entity class is an abstract class (i.e. it may only have either indirect or inferred instances) that serves to group together all classes with a temporal component, such as instances of E4 Period, E5 Event and E3 Condition State."
Steve commented that "indirect and inferred is synonymous"
Nuremberg Dec 2010
The E2 Temporal Entity class is an abstract class (i.e. it has no direct instances) that serves to group together all classes with a temporal component, such as instances of E4 Period, E5 Event and E3 Condition State.
New issue: Put "abstract class" in terminology chapter.
Crete, May 2011