11.The duality association in an REA diagrams signifies that each : 1819514
11.The duality association in an REA diagrams signifies that each economic transaction involves two agents.
12.A difference between ER and REA diagrams is that ER diagrams present a static picture of the underlying business phenomena.
13.ER diagrams always label entity names in the singular noun form.
14.When modeling M:M associations, it is conventional to include link tables in the REA diagram so that the model reflects closely the actual database.
15.Where a 1:M association exists between tables, the primary key of the 1 side is embedded in the table of the M side.
16.The REA approach generates an information system based on a single holistic user view.
17.Four basic forms of cardinality are possible: zero or one (0,1), one and only one (1,1), one or many (1,M), and many and only many (M,M).
18.When one side of a 1:1 association has a minimum cardinality of zero, the primary key of the table with the 0,1 cardinality should be embedded as a foreign key in the table with the 1,1 cardinality
19.Most companies implementing an REA model also maintain a traditional general ledger system for financial reporting.
20.Modeling economic transactions under the REA approach always includes depicting both internal and external agents.