/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2011, Open Source Geospatial Foundation (OSGeo)
 *    (C) 2004-2005, Open Geospatial Consortium Inc.
 *    
 *    All Rights Reserved. http://www.opengis.org/legal/
 */
package org.opengis.metadata.identification;

import java.util.Collection;
import java.util.Date;
import org.opengis.util.InternationalString;
import org.opengis.metadata.citation.ResponsibleParty;
import org.opengis.annotation.UML;

import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;


/**
 * Brief description of ways in which the resource(s) is/are currently used.
 *
 *
 * @source $URL: http://svn.osgeo.org/geotools/branches/2.7.x/modules/library/opengis/src/main/java/org/opengis/metadata/identification/Usage.java $
 * @version <A HREF="http://www.opengeospatial.org/standards/as#01-111">ISO 19115</A>
 * @author  Martin Desruisseaux (IRD)
 * @since   GeoAPI 2.0
 */
@UML(identifier="MD_Usage", specification=ISO_19115)
public interface Usage {
    /**
     * Brief description of the resource and/or resource series usage.
     *
     * @return Description of the resource usage.
     */
    @UML(identifier="specificUsage", obligation=MANDATORY, specification=ISO_19115)
    InternationalString getSpecificUsage();

    /**
     * Date and time of the first use or range of uses of the resource and/or resource series.
     *
     * @return Date of the first use of the resource, or {@code null}.
     */
    @UML(identifier="usageDateTime", obligation=OPTIONAL, specification=ISO_19115)
    Date getUsageDate();

    /**
     * Applications, determined by the user for which the resource and/or resource series
     * is not suitable.
     *
     * @return Applications for which the resource and/or resource series is not suitable, or {@code null}.
     */
    @UML(identifier="userDeterminedLimitations", obligation=OPTIONAL, specification=ISO_19115)
    InternationalString getUserDeterminedLimitations();

    /**
     * Identification of and means of communicating with person(s) and organization(s)
     * using the resource(s).
     *
     * @return Means of communicating with person(s) and organization(s) using the resource(s).
     */
    @UML(identifier="userContactInfo", obligation=MANDATORY, specification=ISO_19115)
    Collection<? extends ResponsibleParty> getUserContactInfo();
}