ISM 50 - Business Information Systems
Lecture 20
Instructor: John Musacchio
UC Santa Cruz
November 30, 2006
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Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
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Earn points by helping other students or get them with a premium plan
Markup Languages and Business Information Systems: HTML, XML, and Domain Names - Prof. Joh, Exams of Accounting
A lecture note from uc santa cruz ism 50 - business information systems course, focusing on markup languages, specifically html and xml. The definition, purpose, and examples of markup languages, their role in ecommerce, and the difference between html and xml. Additionally, it discusses domain names and the domain name system (dns).
Typology: Exams
Pre 2010
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ISM 50 - Business Information Systems
Lecture 20
Instructor: John Musacchio
UC Santa Cruz
November 30, 2006
Announcements
Final Exam December 7
Thimann Lecture Hall 001 (this room)
8am – 11am
Review Guide to be posted tonight.
DefinitionA
markup language
describes the structure
of a document
Based on tags
Tags denote structural elements like sections,subsections, figures, etc
Internationally standardized, so application
independent
Example: HTML
Super Widget Widgets Incorporated
123456789
$300
Super WidgetWidgets Incorporated 123456789 $
XML in Ecommerce example^ Supplier
Stuff4U
Retailer
Super Widget Widgets Incorporated
123456789
$300 <\product>
Product infoFrom eachSupplier sent inXML
Stuff4U
Super Widget
$
Amazing Gadget
$
Consumer
XML in ecommerce example 2^ Supplier
Super Widget Widgets Incorporated
123456789
$300 <\product>
Product infoFrom eachSupplier sent inXML
XYZ
Manufacturing
Super widget recognizedand managed by SCMsoftware.
Domain Names
Domain NamesIP addresses are inconvenient for people
32 bits hard to remember
128 bits very hard to remember
Domain names
e.g. argus.eecs.berkeley.edu
Easier to remember than IP addresses
However, we need some way of mapping domainnames to IP addresses.
Hierarchy in Addresses vs. NamesAddresses hierarchical in topology
Maximize “wild cards” and distribute addressadministration
Names hierarchical in administration
Single administered organizations oftendistributed topologically (e.g. ibm.com)
AA CaseStudent Talk: Chi Hou Ip
Dispatch Automation Package
Flight tracking application
View 1
List of all flights dispatcher responsible for
View 2
Dependencies of one flight on other flights.
Message tracking
e-mail to flight crew
View 1:
AA IT Architecture
AMR Intranet
SABRE LAN
“PassengerServiceSystem”(Does Reservations)“Fare Pricing Complex”Responsible for updatingFares(3 mainframes)
Frontendcomplex
SOC LAN
Dispatcher automationpackage
File Servers (Cache FOS data
every 2 min)
DispatcherWorkstations
IBM IBM IBM
“Flight Operating System”
Maintains Critical Data
1-Mainframe
IBM
Flight Tracking Application
Fall 90 - Built as prototype as a way for someone to teachhimself OOP
May 91 - OK to develop application
Work divided (one person in charge of each)
User interface
data model
data exchange with FOS
Nov 91 – production installation complete
2 months testing