Page 748 - Shaping smarter and more sustainable cities - Striving for sustainable development goals

subset of XAS. XAS and XAR differ because XAR does not contain data as contents. All transactions
in this infrastructure utilize the XAS and its subset, XAR. XAS is designed according to Extensible
Markup Language (XML). Figure 8.4.2 lists an example of D‐XAS. It includes the information to enable
anonymization, including combinations of the sensitive attribute names and quasi‐identifiers,
permitted anonymization methods and levels, and data attributes such as created date, updated
date and history, ownership, copyrights, comments, and others. Figure 8.4.3 lists an example of a P‐
XAR. It does not contain raw data; it only declares the required anonymization methods and levels.
To enable masking or generalization processes, it can define the delimiter for distinguishing data
sections. In this example, "BirthDay" is split utilizing the '‐' character. During the anonymizing
process, the character is used to define the generalization boundary. If the data employs a general
and standardized format, for example, BirthDay should be separated by '‐' it can generalize the data
entry by referring to the default rule. As an additional feature, the data provider may publish data
samples without data publishing limits to publicize the data's availability. This open information is
termed "open attribute." This open attribute can be declared in the data entry.

1 <?xml version="1.0" encoding="utf‐8"?>
2 <?xml‐anonymize type="text/xas" href="p‐xar.xas"?>
3 <list>
4 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22‐rdf‐syntax‐ns#"
xmlns:v="http://www.w3.org/2006/vcard/ns#">
5 <v:Kind rdf:about = "http://foo.com/me/hogehoge">
6 <v:fn>Hoge Foo</v:fn>
7 <v:bday>1980‐01‐01</v:bday>
8 <v:hasTelephone>
9 <rdf:Description>
10 <rdf:value>+81‐45‐566‐1454</rdf:value>
11 <rdf:type rdf:resource="http://www.w3.org/2006/vcard/ns#Work"/>
12 <rdf:type rdf:resource="http://www.w3.org/2006/vcard/ns#Voice"/>
13 </rdf:Description>
14 </v:hasTelephone>
15 <v:hasAddress>
16 <rdf:Description>
17 <v:street‐address>123‐45 Hoge Village</v:street‐address>
18 <v:locality>FooCity</v:locality>
19 <v:postal‐code>5555</v:postal‐code>
20 <v:country‐name>Japan</v:country‐name>
21 </rdf:Description>
22 </v:hasAddress>
23 </v:Kind>
24 </rdf:RDF>
25 <OfficeScale>100ha</OfficeScale>
26 <PowerConsumption>10kWh</PowerConsumption>
27
28 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22‐rdf‐syntax‐ns#"
xmlns:v="http://www.w3.org/2006/vcard/ns#">
29 <v:Kind rdf:about = "http://foo.com/me/db">

Fig. 8.4.2 D‐XAS Example (Extract)

738 ITU‐T's Technical Reports and Specifications