9. SDI Terms and Definitions
Term |
Definition |
Reference |
|---|---|---|
data level |
stratum within a set of layered levels in which data is recorded that conforms to definitions of types found at the application model level |
ISO 19101 |
dataset series (dataset collection1) |
collection of datasets sharing the same product specification |
ISO 19113, ISO 19114, ISO 19115 |
geographic dataset |
dataset with a spatial aspect |
ISO 19115 |
geographic information |
information concerning phenomena implicitly or explicitly associated with a location relative to the Earth |
ISO 19128 |
interface |
named set of operations that characterize the behavior of an entity |
ISO 19119 |
metadata entity |
set of metadata elements describing the same aspect of data. |
ISO 19115 |
metadata schema |
conceptual schema describing metadata |
ISO 19101 |
metadata section |
subset of metadata that defines a collection of related metadata entities and elements |
ISO 19115 |
operation |
specification of a transformation or query that an object may be called to execute |
ISO 19119 |
parameter |
variable whose name and value are included in an operation request or response |
ISO 19119 |
profile |
set of one or more base standards and – where applicable – the identification of chosen clauses, classes, subsets, options and parameters of those base standards that are necessary for accomplishing a particular function |
ISO 19101, ISO 19106 |
schema |
formal description of a model |
ISO 19101, |
ISO 19103, |
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ISO 19109, |
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ISO 19118 |
||
server service instance |
a particular instance of a service |
ISO 19128 |
data clearinghouse |
collection of institutions providing digital data, which can be searched through a single interface |
ISO 19115 |
using a common metadata standard |
||
feature catalogue |
catalogue containing definitions and descriptions of the feature types, feature attributes, and feature |
ISO 19101, ISO 19110 |
relationships occurring in one or more sets of geographic data, together with any feature operations |
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that may be applied |
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metadata dataset |
metadata describing a specific dataset |
ISO 19101 |
service interface |
shared boundary between an automated system or human being and another automated system or |
ISO 19101 |
human being |
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service metadata |
metadata describing the operations and geographic information available at a server |
ISO 19128 |
transfer protocol |
common set of rules for defining interactions between distributed systems |
ISO 19118 |