| Vehicle |
A vehicle is a device that is designed or used to transport people or cargo over land, water, air, or through space. |
| DietarySupplement |
A product taken by mouth that contains a dietary ingredient intended to supplement the diet. Dietary ingredients may include vitamins, minerals, herbs or other botanicals, amino acids, and substances such as enzymes, organ tissues, glandulars and metabolites. |
| Drug |
A chemical or biologic substance, used as a medical therapy, that has a physiological effect on an organism. Here the term drug is used interchangeably with the term medicine although clinical knowledge makes a clear difference between them. |
| IndividualProduct |
A single, identifiable product instance (e.g. a laptop with a particular serial number). |
| ProductCollection |
A set of products (either [[ProductGroup]]s or specific variants) that are listed together e.g. in an [[Offer]]. |
| ProductGroup |
A ProductGroup represents a group of [[Product]]s that vary only in certain well-described ways, such as by [[size]], [[color]], [[material]] etc.
While a ProductGroup itself is not directly offered for sale, the various varying products that it represents can be. The ProductGroup serves as a prototype or template, standing in for all of the products who have an [[isVariantOf]] relationship to it. As such, properties (including additional types) can be applied to the ProductGroup to represent characteristics shared by each of the (possibly very many) variants. Properties that reference a ProductGroup are not included in this mechanism; neither are the following specific properties [[variesBy]], [[hasVariant]], [[url]]. |
| ProductModel |
A datasheet or vendor specification of a product (in the sense of a prototypical description). |
| SomeProducts |
A placeholder for multiple similar products of the same kind. |