Yes, reification would let you cut the number of property shapes to just 22: 20 for the different properties that will hold values of your quantities/measurements plus the two for the title and the unit of measure.
However, you would not be able to specify a default value as you would only have a single property shape for the unit of measure property. Another option is to have a class Quantity with properties value, unit of measure and title. Then, properties like srate become relationships and you would be creating new instances for each quantity. I think you should then be able to specify a default value for the srate/unit sequential path, but, without trying this out, I am not sure how practical this would be I.e., how well it would work in the EDG UI. > On Nov 1, 2021, at 7:34 PM, Kai Liu <tjroa...@gmail.com> wrote: > > In EDG, I have a class "Spring", on which a parameter "srate" of type float > should be defined. It has a default value. In addition, this parameter > should also carry some metadata, e.g. a default title "spring rate", a > default unit "N/m". The instances of this class can then override these > default values. > > Currenlty, I defined for each of these metadata a separate attribute: > "srate.title" of type string, "srate.unit" of type string and specified > default values for them. I am wondering whether there is a modeling pattern > to better cope with this problem, since I have classes with 20 parameters, > and for which I need to define 60 attributes. Moreover, there are no semantic > relationship between srate, srate.title and srate.unit. They are related just > with the naming convention. > > I tried to use Reification (statements about statements) to model this, but I > was not able to set the default values for the title and unit in the ontology. > > Thanks. > > Kai > > A screenshot of the property (attribute) definition: > > <srate.png> > > > The configuration of this parameter in the instance: > > <srate-instance.png> > > > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to topbraid-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/972303f0-d963-41a9-9acc-5ef45193be59n%40googlegroups.com. > <srate.png> > <srate-instance.png> -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/topbraid-users/D5A79398-DB90-4E31-BA9E-6E6D1D0FC35A%40topquadrant.com.
