158 Chapter 5 " XML Digital Signatures Figure 5.8 An Example of Weather Data Stored as XML <?xml version="1.0" encoding="UTF-8"?> <document> <header> <title>The latest weather</title> </header> <content> <weather Id="KMRY"> <location> Monterey, Monterey Peninsula Airport, CA, United States (KMRY) 36-35-26N 121-50-51W 66M </location> <time> Apr 19, 2002 - 10:54 AM EST / 2002.04.19 1554 UTC </time> <wind>  from the WNW (300 degrees) at 6 MPH (5 KT) </wind> <visibility>  10 mile(s) </visibility> <sky> clear </sky> <temperature>  54.0 F (12.2 C) </temperature> <dewpt>  46.0 F (7.8 C) </dewpt> <humidity>  74% </humidity> <press>  30.15 in. Hg (1020 hPa) </press> <!--  KMRY 191554Z 30005KT 10SM CLR 12/08 A3015 RMK AO2 SLP223 T01220078 --> <!--  16 --> </weather> <weather Id="KSFO"> <location> San Francisco, San Francisco International Airport, CA, United States (KSFO) 37-37-11N 122-21-53W 26M </location> <time> Apr 19, 2002 - 10:56 AM EST / 2002.04.19 1556 UTC </time> <wind>  from the W (260 degrees) at 5 MPH (4 KT) </wind> <visibility>  10 mile(s) </visibility> <sky> clear </sky> <temperature>  55.9 F (13.3 C) </temperature> <dewpt>  39.0 F (3.9 C) </dewpt> <humidity>  52% </humidity> <press>  30.15 in. Hg (1020 hPa) </press> <!--  KSFO 191556Z 26004KT 10SM CLR 13/04 A3015 RMK AO2 SLP211 www.syngress.com Continued