/*$************************************************************************************************
 **
 ** $Id: Element.java 831 2006-05-01 00:27:23Z Desruisseaux $
 **
 ** $URL: http://svn.code.sf.net/p/geoapi/code/branches/2.0.x/geoapi/src/main/java/org/opengis/metadata/quality/Element.java $
 **
 ** Copyright (C) 2004-2005 Open GIS Consortium, Inc.
 ** All Rights Reserved. http://www.opengis.org/legal/
 **
 *************************************************************************************************/
package org.opengis.metadata.quality;

// J2SE direct dependencies
import java.util.Collection;
import java.util.Date;

// OpenGIS direct dependencies
import org.opengis.metadata.Identifier;
import org.opengis.metadata.citation.Citation;
import org.opengis.util.InternationalString;

// Annotations
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;


/**
 * Type of test applied to the data specified by a data quality scope.
 *
 * @version Abstract specification 5.0
 * @author Martin Desruisseaux (IRD)
 * @since GeoAPI 2.0
 */
@UML(identifier="DQ_Element", specification=ISO_19115)
public interface Element {
    /**
     * Name of the test applied to the data.
     */
    @UML(identifier="nameOfMeasure", obligation=OPTIONAL, specification=ISO_19115)
    Collection getNamesOfMeasure();

    /**
     * Code identifying a registered standard procedure, or {@code null} if none.
     */
    @UML(identifier="measureIdentification", obligation=OPTIONAL, specification=ISO_19115)
    Identifier getMeasureIdentification();

    /**
     * Description of the measure being determined.
     */
    @UML(identifier="measureDescription", obligation=OPTIONAL, specification=ISO_19115)
    InternationalString getMeasureDescription();

    /**
     * Type of method used to evaluate quality of the dataset, or {@code null} if unspecified.
     */
    @UML(identifier="evaluationMethodType", obligation=OPTIONAL, specification=ISO_19115)
    EvaluationMethodType getEvaluationMethodType();

    /**
     * Description of the evaluation method.
     */
    @UML(identifier="evaluationMethodDescription", obligation=OPTIONAL, specification=ISO_19115)
    InternationalString getEvaluationMethodDescription();

    /**
     * Reference to the procedure information, or {@code null} if none.
     */
    @UML(identifier="evaluationProcedure", obligation=OPTIONAL, specification=ISO_19115)
    Citation getEvaluationProcedure();

    /**
     * Date or range of dates on which a data quality measure was applied.
     * The array length is 1 for a single date, or 2 for a range. Returns
     * {@code null} if this information is not available.
     */
    @UML(identifier="dateTime", obligation=OPTIONAL, specification=ISO_19115)
    Date[] getDate();

    /**
     * Value (or set of values) obtained from applying a data quality measure or the out
     * come of evaluating the obtained value (or set of values) against a specified
     * acceptable conformance quality level.
     */
    @UML(identifier="result", obligation=MANDATORY, specification=ISO_19115)
    Result getResult();
}