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lastChild attribute (DOM), 152
layers
business, 3, 4, 48–49, 53–54
data, 47–48, 52
integration, 56–58, 521–524, 541, 560–565
integration/interface, 51, 54–55
of OSI reference model, 32–33
presentation, 49–50, 58–60
sublayers for presentation layer, 59, 60–63
transport, 31, 32–36
See also interface layer; presentation layer
layout in presentation layer, 49
less than (<) XML special character, 177
light request/heavy response process, 9
links, 204, 205
listeners
authentication and validation choices for hotel reservation, 445–446, 447
in communication architecture, 31
creating instance of XML parser for, 294
designing for hotel reservation system, 443–447
extracting data for hotel reservation, 446–447
handling consumer calls with, 38
for hotel reservation system with integrated security, 511–512
implementing for hotel reservation system, 455, 461
maintaining separate responder and, 298
for mortgage calculator Web service, 289–297
residing in interface layer, 54
selecting technology for hotel reservation service, 444
test client for hotel reservation system, 462–465
validating data for mortgage calculator service, 295–297
for weather Web service as ASP page, 322, 333–337
as Web service component, 37
localName attribute (DOM), 152
logical architecture, 44–63
business layer, 48–49, 53–54
combining with communication architecture for calls, 64
consumer responsibilities and functions in, 51, 55–63
data layer, 47–48, 52
defined, 30, 44
integration/interface layer of, 51, 54–55
overview of, 44–45
physical architecture vs., 46
presentation layer, 49–50, 58–60
sublayers for presentation layer, 59, 60–63
of Web applications, 46–47
of Web service, 51–63
Web service vs. Web application, 50–51
lowercase code and case sensitivity, 82
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