SSbD Classes defined in the SSbD Core Ontology

IRI	Definition	SSbD usage note
ssbd:Role	The class of all individuals that are defined through a parthood relation to an entity.	An individual can be said to have a role in relation to the entity.
ssbd:MaterialProcess	A process that has material as input and output.
ssbd:Measurement	An observation that results in a quantitative comparison of a ‘property’ of an ‘object’ with a standard reference based on a well defined mesurement procedure.
ssbd:Computation	A procedure that deals with quantitative symbols (i.e. symbols associated with a quantitative oriented language).
ssbd:Material	The class of individuals standing for an amount of matter (ordinary, anti or hybrid) substance (or mixture of substances) in different states of matter or phases.
ssbd:Property	A coventional semiotic sign that stands for a physical interaction with an object using an ´atomic symbol´.	A property is ´atomic´ in the sense that it is aimed to describe one and one only aspect of the object.
ssbd:Data	Contrast from variation of properties that is encoded by an agent and that can be decoded by another agent according to a specific rule.
ssbd:Object	The class of all individuals whose temporal parts are of the same type as the whole.
ssbd:Dataset	A collection of data, published or curated by a single agent, and available for access or download in one or more representations.	A collection of (more than one) datum, published or curated by a single agent, and available for access or download in one or more representations.
ssbd:Datum	A self-consistent encoded data entity.	Datum is the building block of datasets.
foaf:Document	A document.	The Document class represents those things which are, broadly conceived, ‘documents’. E.g. images.
ssbd:Software	All or part of the programs, procedures, rules, and associated documentation of an information processing system.	Software is usually used as a generic term for programs. However, in its broadest sense it can refer to all information (i.e., both programs and data) in electronic form and can provide a distinction from hardware, which refers to computers or other electronic systems on which software can exist and be used. Here we explicitly include in the definition also all the data (e.g. source code, script files) that take part in building the executable, are necessary to the execution of a program or that document it for the users.
dcterms:RightsStatement	A statement about the intellectual property rights (IPR) held in or over a resource, a legal document giving official permission to do something with a resource, or a statement about access rights.	Use one of the pre-defined individuals of this class defined by EU: accr:PUBLIC, accr:NON_PUBLIC, accr:CONFIDENTIAL, accr:RESTRICTED, accr:SENSITIVE
dcterms:LicenseDocument	A legal document giving official permission to do something with a resource.
ssbd:ReliabilityDocument
prov:Agent	An agent is something that bears some form of responsibility for an activity taking place, for the existence of an entity, or for another agent’s activity.
ssbd:Participant	An object which is a spatial part of a process.	Example: A student during an examination. The student exists both before and after the examination.

The following classes are included in the SSbD Core Ontology to provide a structure, but are not intended to be used directly.

IRI	Definition	SSbD usage note
prov:Entity	A physical, digital, conceptual, or other kind of thing with some fixed aspects.	PROV-O lacks the accuracy of nominalism and allows both real and imaginary entities.
prov:Activity	Something that occurs over a period of time and acts upon or with entities.	Activity individuals have some temporal parts (that are not of the same type as the activity itself). An activity may include consuming, processing, transforming, modifying, relocating, using, or generating entities.
foaf:Agent	A thing that does stuff (like person, group, software or physical artifact).	The FOAF specification of a agent is very loose. The subclass prov:Agent provides further context, by saying that a prov:agent bears some form of responsibility for an activity, the existence of an entity or the activity of another agent.