What does it mean with '0..* interacts with 0..*'?
I was reading 'Client-Server Web Apps' by Casimir Saternos,
and found it in the feature 7.1 .
Is this common notation to represent for something? or coined by the author only here in this book?
Hope any clue.
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The author responded to your question with the following note:
0..* means "zero to many". It is standard notation in UML class diagrams.
Other possible relationships are 1..1 (one to one) or 1..* (1 to many).
So for example, a person could own zero or more computers. A UML class diagram would have a box representing a person class, a box representing a computer class, and a line connecting them notated with 0..*.
For an example on Wikipedia:
Hope this helps.