| Name | Description | Type | Package | Framework |
| Artifact | A class representing an artifact. | Class | org.jscience.economics.resources | JScience |
| ArtifactsConstants | A class representing useful constants defining artifacts. | Class | org.jscience.economics.resources | JScience |
| Building | A class representing a Building or a monument. | Class | org.jscience.economics.resources | JScience |
| Clothes | A class representing wearable clothes. | Class | org.jscience.economics.resources | JScience |
| Creature | A class representing animals, plants or fungi. | Class | org.jscience.economics.resources | JScience |
| Food | A class representing something that can be eaten or drunk. | Interface | org.jscience.economics.resources | JScience |
| Fossil | A class representing Fossils. | Class | org.jscience.economics.resources | JScience |
| Game | A class representing something you can play with. | Interface | org.jscience.economics.resources | JScience |
| Gas | A class representing Gas. | Class | org.jscience.economics.resources | JScience |
| Installation | A class representing an installation. | Class | org.jscience.economics.resources | JScience |
| Liquid | A class representing Liquids. | Class | org.jscience.economics.resources | JScience |
| Machine | A class representing Machine. | Class | org.jscience.economics.resources | JScience |
| Mineral | A class representing Minerals. | Class | org.jscience.economics.resources | JScience |
| Natural | A class representing something in nature. | Class | org.jscience.economics.resources | JScience |
| Object | A class representing a crafted thing. | Class | org.jscience.economics.resources | JScience |
| Road | A class representing a built track, namely a road. | Class | org.jscience.economics.resources | JScience |
| Robot | A class representing robots. | Class | org.jscience.economics.resources | JScience |
| Sign | A class representing an intelligent made sign. | Interface | org.jscience.economics.resources | JScience |
| Solid | A class representing Solids. | Class | org.jscience.economics.resources | JScience |
| Store | A class representing a container. | Interface | org.jscience.economics.resources | JScience |
| Thing | A class representing a "thing" (especially targetted towards 3D andSee Also:Serialized Form | Class | org.jscience.economics.resources | JScience |
| ThingsGroup | A class representing a group of things that are bond together or act asConstructor SummaryThingsGroup() | Class | org.jscience.economics.resources | JScience |
| Tool | A class representing a tool. | Class | org.jscience.economics.resources | JScience |
| Vehicle | A class representing an object which purpose is to be moved. | Class | org.jscience.economics.resources | JScience |