Answer to Question 1
In IDEF1X, nonidentifying connection relationships have a default cardinality of one-to-many, with a mandatory parent and optional child. This is represented by placing a filled-in circle by the child. The same notation is the default for identifying connection relationships. Nonspecific relationships place a filled-in circle at each end of the connecting line, but there is no way to indicate a minimum cardinality. Additional symbology that may be used is a diamond next to the parent to indicate that it is optional, a P to indicate one-or-more, and a Z to indicate zero-or-one.
Answer to Question 2
In IDEF1X, nonidentifying connection relationships are drawn as dashed lines. Identifying connection relationships are drawn as solid lines, as are nonspecific relationships.
Diagrams showing the multiple energy shells and orbitals of a nitrogen atom
Common Abbreviations and Symbols Used by Massage Therapists Cont
Common Abbreviations and Symbols Used by Massage Therapists Cont
Common Abbreviations and Symbols Used by Massage Therapists Cont
Egyptian Symbols
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately