Methodology

Metadata regarding the methodologies used concerning data collection, determining the timing and repetition patterns for data collection, and sampling procedures. Identifies areas where there were deviations from the planned sampling approach, the software used for data collection, and references to any quality standards or statements regarding the processes surrounding the planning and implementation of data collection.

Properties

Name

Type

Description

DataCollectionMethodology

DataCollectionMethodologyType

0..n

A basic structure for describing the methodology used for collecting data. Repeat this element if multiple methodologies are used.

TimeMethod

TimeMethodType

0..n

Describes how time fits into the data collection methodology.

SamplingProcedure

SamplingProcedureType

0..n

Describes the type of sample, sample design and provides details on drawing the sample. May be repeated to provide descriptions of individual facets of a single sample design or when multiple sampling methods are used. When multiple descriptions are used, the use of a controlled vocabulary to identify the parts and relationships is strongly recommended.

DeviationFromSampleDesign

DeviationFromSampleDesignType

0..n

Describes any deviations from the planned sample design.

DataCollectionSoftware

SoftwareType

0..n

Specification of a software package used to instantiate a data collection method.

QualityStatementReference

QualityStatement

0..n

A reference to a Quality Statement pertaining to the quality of the study methodology, metadata, or data to which it is associated. Quality statements may be related to external quality standards.

Properties Inherited from Versionable

Name

Type

Description

URN

string

1..1

Agency

string

1..1

ID

string

1..1

Version

string

1..1

UserID

UserIDType

0..n

Allows for the specification of identifiers other than the specified DDI identification of the object. This may be a legacy ID from DDI-C, a system specific ID such as for a database or registry, or a non-DDI unique identifier. As the identifier is specific to a system the system must be identified with the UserID structure.

InheritanceAction

string

0..1

The attribute “action” is used for inheritance situations where there is an override at the local level (within a grouped StudyUnit) which is not available for further inheritance. There are three possible values for “action”: Add - A new identifiable object (an Identifiable, Versionable, or Maintainable element) is provided locally with a new identifier (one that is not inherited). All properties (elements and attributes contained in the object) of the object are as specified. If an object with an existing id is created, this is an error.; Update - An object is provided locally with the SAME id as the inherited object. For each type of property that is specified locally, a full set of those properties is specified for local use. These properties replace any properties of this type which were inherited. Unspecified properties are used as inherited.; Delete - An object is provided locally with the SAME id as the inherited object. All properties specified locally in this object will be deleted if their types and values match those inherited. Note that to completely delete an object at the local level, all properties of the inherited object must be listed.

UserAttributePair

StandardKeyValuePairType

0..n

A system specific user defined property of the object expressed as a key/value pair. As this is specific to an individual system the use of controlled vocabularies for the key is strongly recommended.

VersionResponsibility

string

0..1

Person or organization within the MaintenanceAgency responsible for the version change. If it is important to retain the affiliation between and individual responsible for the version and his/her agency, it may be included in this notation. This is primarily intended for internal use.

VersionResponsibilityReference_Organization

Organization

0..1

Reference person or organization within the MaintenanceAgency responsible for the version change, as described in an OrganizationScheme. If it is important to retain the affiliation between and individual responsible for the version and his/her agency, a Relation should be created between the individual referenced here and his/her organization. This is primarily intended for internal use.

VersionResponsibilityReference_Individual

Individual

0..1

Reference person or organization within the MaintenanceAgency responsible for the version change, as described in an OrganizationScheme. If it is important to retain the affiliation between and individual responsible for the version and his/her agency, a Relation should be created between the individual referenced here and his/her organization. This is primarily intended for internal use.

VersionRationale

VersionRationaleType

0..1

Textual description of the rationale/purpose for the version change and a coded value to provide an internal processing flag within and organization or system. Note that versioning can only take place on objects owned by the specified DDI Agency. If you are creating a local instance of an object from another agency for current or future modification use BasedOnObject. If the changes being made result in what you determine to be new object rather than a version of a previous object, i.e. the change is too extensive to consider it a version of the existing object, create a new object and use BasedOnObject to provide a link to the object or objects that were a basis for the new object.

BasedOnObject

BasedOnObjectType

0..1

Use when creating an object that is based on an existing object or objects that are managed by a different agency or when the new object is NOT simply a version change but you wish to maintain a reference to the object that served as a basis for the new object. BasedOnObject may contain references to any number of objects which serve as a basis for this object, a BasedOnRationalDescription of how the content of the referenced object was incorporated or altered, and a BasedOnRationalCode to allow for specific typing of the BasedOnReference according to an external controlled vocabulary.

VersionDate

cogsDate

0..1

Date of version using the union set BaseDateType. Duration should not be used in this field, even though allowed by the ISO format enforced by the parser.

Item Type Hierarchy

Relationships

The following types reference this type.

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