'$RCSfile: eml-project.xsd,v $'
Copyright: 2000 Regents of the University of California and the
National Center for Ecological Analysis and Synthesis
For Details: http://knb.ecoinformatics.org/
'$Author: berkley $'
'$Date: 2002/04/21 22:45:30 $'
'$Revision: 1.27 $'
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eml-project
The EML Project Module describes the research context
in which the dataset was created, including description
of over-all motivations and goals, funding, personnel, description of the
study area etc. This is also the module to describe over-all sampling
methods for the project.
Research project descriptor
Descriptor of research project in which context
the dataset was created. Container of all research projects in which context the
dataset was created.
Research project element is a descriptor of
various programmatic aspects within which researchers
created this dataset. It can also include general research goals
and motivations, data collection methods, equations, formulas.
But see 'eml-protocol' for more areas to provide methodological detail.
eml-project elements describe various aspects of the
research project within which researchers created the associated dataset.
The association of a dataset with this project metadata is established
in eml-dataset
The researchProject element was introduced into EML 1.4. eml-project
was introduced in EML 2.0. It replaces eml-research, which was
introduced into EML 1.4 as replacement for eml-context.
Unique identifier
The unique identifier of this metadata file or object.
The identifier field provides a unique identifier for this
metadata documentation. It will most likely be part of a
sequence of numbers or letters that are meaningful in a
larger context, such as a metadata catalog. That larger
system can be identified in the "system" attribute. Multiple
identifiers can be listed corresponding to different catalog
systems.
nceas.3.2]]>
The 'identifier' field is derived from the eml-dataset
meta_file_id filed in EML 1.4.
Catalog system
The catalog system in which this identifier is used.
This element gives the name of the catalog system in which
this identifier is used. It is useful to determine the
scope of the identifier, and to determine the semantics
of the various subparts of the identifier. Unresolved issue:
can or should this be a URI/URL pointing to the catalog
system, or just the name?
nceas.3.2]]>
New to EML 2.0.
Project Title
Title of the project.
A descriptive title for the research project.
Species diversity in Tennessee riparian habitats.
Introduced into EML 1.4.
Personnel
Contact and role information for people involved in
the research project.
This element extends ResponsibleParty with role information.
Roles can be drawn from an enumerated list taken from
iso-party or the user can add their own roles.
author, contentProvider, custodianSteward, distributor, editor,
metadataProvider, originator, pointOfContact, principalInvestigator,
processor, publisher, or user (ISO list). A user defined role might be somethng like:
fieldStationManager or information manager
This field was derived from the ISO 19115.3 standard
(iso-geo-md-2000June-draft), with the addition of a few new roleCode
values.
Abstract
Descriptive abstract.
Descriptive abstract in paragraph of text.
The abstract element was introduced into EML 1.4.
Funding
Funding information.
Grant and contract numbers, names and addresses of
funding sources described in paragraph of text.
The funding element was introduced into EML 1.4.
Description of the physical location of the research project.
Description of the physical location of the research
project. Can include coverage of the research location, and
descriptions of climate, geology, distrubances.
Description of the physical location of the research
project. Can include descriptions of the geographic,
temporal, and taxonomic coverage of the research location and
descriptions of domains (themes) of interest such as climate, geology,
soils or distrubances or reference to citable biological or
geophysical classification systems such as the "Bailey..." or the ...
The descriptions may be either general descriptions in paragraph
form or specific values for named theme attributes such as
average rainfall. The "studyArea" is, in most cases, a larger geographical
area than the coverage represented in the "designDescription", that is,
studyArea represents the environmental context of the specific
coverages described in "designDescription>
Description of non-coverage physical characteristics
of site
Description of non-coverage physical characteristics
of site such as climate, geology, disturbances
Descriptions of domains (themes) of interest such as climate, geology,
soils or distrubances or references to citable biological or
geophysical classification systems such as the "Bailey..." or the ...
The descriptions may be either general descriptions in paragraph
form or specific values for named theme attributes such as
average rainfall.
New in EML 2.0.0
The value of a descriptor
The value of a descriptor as
The value of a descriptor. This may either be a general description
in paragraph form or the value part of a "name/value" pair where
the name is entered in the attribute "name_or_id". For example,
if the value of the "name" attribute" of the element "descriptor" is
"climate", and the value of the attribute "name_or_id" of the element
"descriptorValue" is "Annual Precipitation" then the value
of this element could be "12.5 inches".
12.5 inches, tundra-forest
EML 2.0.0
The name or ID of a descriptor value.
The name part of a name/value pair of a descriptor
or ID portion, if applicable of a classification.
The name part of a name/value pair of a descriptor
or ID portion, if applicable of a classification. The values of
biogeophysical classification systems, e.g. Bailey-Ecoregions,
often take the form of an ID or Code along with a text representaiton. For example, the ID/Code M131 refers to the phrase
"Open Woodland -Tundra".
M131 is an unambiguous reference to a more detailed description.
If one is using a published classification system then there should be
a corresponding citation to the source, e.g., Bailey,R.G., 1996
"Ecosystem Geography".
M131,Average Rainfall,
New in EML 2.0.0
Description of Research Design
A container element for descriptions of sampling methods,
protocols or citations.
This element is a container element for either general
paragraph descriptions of research design or more granular
descriptions of protocols and/or sampling methods. Literature
citations may also be used to describe the research design.
x
New in EML 2.0.0
Description of sampling methods.
Description of sampling methods including the "coverage"
of the study, a description of the sampling procedures, and the
spatial sampling units.
See individual elements for more detailed descriptions.
Modification of the sampling element introduced into EML 1.4
Geographic, temporal, taxonomic coverage
A description of the specific areas sampled (geographic coverage)
and the sampling frequency (temporal coverage).
A "studyExtent" represents both a specific sampling area
and the sampling frequency (temporal boundaries, frequency
of occurrence). The geographic "studyExtent" is usually a surrogate
(representative area of) for the larger area documented in the
"studyAreaDescription". The "studyExtent" can be entered either in
non-structured paragraph form or using the structure of the "coverage" element.
New in EML 2.0.0
Sampling methods and procedures
A description of sampling methods and procedures
This element allows for a text-based/human readable description
of the sampling procedures used in the research project.
The content of this element would be similar to a description of sampling procedures
found in the methods section of a journal article.
x
x
Spatial sampling units
Spatial sampling units represent the "plot" sampled.
A spatial sampling unit describes the specific geographic areas
sampled. For example, if a researcher places a single light source at a specific point
in a research location in order to attract insects to derive an estimate of the insect
population, then the sampling unit is the area illuminated by the light source
(in actual practice there might be multiple sampling unit in this case since
different species have different attraction rates). A sampling unit may also
be seen as the bounding box of a specific 3-meter square "plot". In the case of a
study in which the measurements from several disbursed "point collection"
devices are aggregated, then the sampling unit would be the area
of that aggregation. Spatial sampling units can either be described by
reference to a "coverage" description or by reference to the values in
a data table (usually a GIS layer)
x
New in EML 2.0.0
The identifier of a spatial sampling entity.
The identifier of a entity described in the "entity" module.
This is usually a GIS layer.
A value of a "referencedEntityId" element is reference to the identifier
of the "entity" module that provides the metadata for a data table
(RDBMS, GIS or "ascii" text) that has the actual spatial sampling unit values.
The "referencedEntityId" is an indirect pointer to the actual values.
The "referencedEntityId" can be thought of as a "foreign key" in a
relational database.
x
New in EML 2.0.0
Descriptor Theme Type
The type of descriptor theme or the name of a classification system.
The descriptorType is used to represent either the name of a citable
classification system/controlled vocabulary such as the
"Bailey" classification of ... or a domain of physical descriptors such as
climate or disturbances.
climate, soils, hydrology, "bailey", biome, disturbance, geology