<metadataformat type="Deliverable">
                <metadatafield>
                    <fieldName>Group</fieldName>
                    <mandatory>true</mandatory>
                    <dataType>String</dataType>
                    <maxOccurs>*</maxOccurs>
                    <defaultValue>Others</defaultValue>
                    <note>The group the item belongs to.</note>
                    <vocabulary isMultiSelection="false">
                        <vocabularyField>Computational Epidemiology</vocabularyField>
                        <vocabularyField>Demography, Economy and Finance 2.0</vocabularyField>
                        <vocabularyField>Disaster Response and Recovery</vocabularyField>
                        <vocabularyField>e-Learning</vocabularyField>
                        <vocabularyField>Ethics and Legality</vocabularyField>
                        <vocabularyField>Health Studies</vocabularyField>
                        <vocabularyField>Migration Studies</vocabularyField>
                        <vocabularyField>Network Medicine</vocabularyField>
                        <vocabularyField>Pervasive Intelligence in Cyber-Physical Systems for Future Society</vocabularyField>
                        <vocabularyField>Social Impact of AI and explainable ML</vocabularyField>
                        <vocabularyField>Societal Debates and Misinformation</vocabularyField>
                        <vocabularyField>Societal and Industrial Impact of Next-Generation Internet and beyond 5G Networks</vocabularyField>
                        <vocabularyField>Sustainable Cities for Citizens</vocabularyField>
                        <vocabularyField>Others</vocabularyField>
                    </vocabulary>
                    <grouping create="true">onValue</grouping>
                </metadatafield>
                <metadatafield>
                    <fieldName>Thematic Cluster</fieldName>
                    <mandatory>true</mandatory>
                    <dataType>String</dataType>
                    <vocabulary isMultiSelection="true">
                        <vocabularyField>Human Mobility Analytics [HMA]</vocabularyField>
                        <vocabularyField>Privacy Enhancing Technology [PET]</vocabularyField>
                        <vocabularyField>Social Data [SD]</vocabularyField>
                        <vocabularyField>Social Network Analysis [SNA]</vocabularyField>
                        <vocabularyField>Text and Social Media Mining [TSMM]</vocabularyField>
                        <vocabularyField>Visual Analytics [VA]</vocabularyField>
                        <vocabularyField>Web Analytics [WA]</vocabularyField>
                        <vocabularyField>Other</vocabularyField>
                    </vocabulary>
                </metadatafield>
                <metadatafield>
                    <fieldName>SoBigData Node</fieldName>
                    <mandatory>true</mandatory>
                    <dataType>String</dataType>
                    <maxOccurs>*</maxOccurs>
                    <defaultValue>SoBigData EU</defaultValue>
                    <note>The node the item belongs to.</note>
                    <vocabulary isMultiSelection="false">
                        <vocabularyField>SoBigData AT</vocabularyField>
                        <vocabularyField>SoBigData BG</vocabularyField>
                        <vocabularyField>SoBigData CH</vocabularyField>
                        <vocabularyField>SoBigData DE</vocabularyField>
                        <vocabularyField>SoBigData EL</vocabularyField>
                        <vocabularyField>SoBigData ES</vocabularyField>
                        <vocabularyField>SoBigData FI</vocabularyField>
                        <vocabularyField>SoBigData FR</vocabularyField>
                        <vocabularyField>SoBigData IT</vocabularyField>
                        <vocabularyField>SoBigData NL</vocabularyField>
                        <vocabularyField>SoBigData SE</vocabularyField>
                        <vocabularyField>SoBigData EU</vocabularyField>
                    </vocabulary>
                    <grouping create="true">onValue</grouping>
                </metadatafield>
                <metadatafield>
                    <fieldName>DeliverableAuthors</fieldName>
                    <mandatory>true</mandatory>
                    <dataType>String</dataType>
                    <note>The names of all the authors. The format should be: author1 family name, author1 given name; author2 family name, author2 given name; etc. Example Smith, John; Green, Marc;</note>
                </metadatafield>
                <metadatafield>
                    <fieldName>PublicationDate</fieldName>
                    <mandatory>true</mandatory>
                    <dataType>Time</dataType>
                    <note>The date of publication of the deliverable. Use ISO 8601 Date Format: YYYY-MM-DD[ HH:MM] Ex. 1998-11-10 or 2015-05-29 11:55</note>
                    <validator>
                        <regularExpression>^(\d{4}\-(0?[1-9]|1[012])\-(0?[1-9]|[12][0-9]|3[01]))+([ ]+(\d{2}(:?\d{2})?)?)?$</regularExpression>
                    </validator>
                </metadatafield>
                <metadatafield>
                    <fieldName>Creator</fieldName>
                    <mandatory>false</mandatory>
                    <dataType>String</dataType>
                    <note>The name of the creator, with email and ORCID. The format should be: family, given[, email][, ORCID]. Example: Smith, John, js@acme.org, orcid.org/0000-0002-1825-0097</note>
                    <validator>
                        <regularExpression>^[a-zA-ZÀ-ÿ .'-]+, [a-zA-ZÀ-ÿ .'-]+[, ]*([a-zA-Z0-9_!#$%’*+=?`{|}~^.-]+@[a-zA-Z0-9À-ÿ.-]+)?[, ]*(orcid.org\/0000-000(1-[5-9]|2-[0-9]|3-[0-4])\d\d\d-\d\d\d[\dX])?$</regularExpression>
                    </validator>
                </metadatafield>
            </metadataformat>