Page 31 - DCAP512_WAP_AND_WML

Unit 2: Basic of a Good WAP Application

 Regarding information access there should be focus on the task and the most relevant, Notes
functions, links, etc.

 Common design mistakes include among others sloppy WAP site copy, poor navigation,
bad color coordination, pages loading too slowly, long scrolling, meta tags missing,
outdated information, no cross browser compatibility, etc.

 The Wireless Telephony Application (WTA) server is an example origin or gateway server
that responds to requests from the WAP client directly. The WTA server is used to provide
WAP access to features of the wireless network provider’s telecommunications
infrastructure.

 Examples of WAP uses include checking train table information ,ticket purchase ,flight
check in ,viewing traffic information ,looking up phone numbers and addresses and sports
results, etc.

2.6 Keywords

Decks: Pages in WML are called DECKS. Decks are constructed as a set of CARDS.
Micro Browser: It is a small piece of software that makes minimal demands on hardware,
memory and CPU. It can display information written in a restricted mark-up language called
WML.
MME: It means Microsoft Mobile Explorer developed by Microsoft which is a dual-mode browser,
supporting both WML and HTML content.
Openwave Mobile Browser: It is a micro browser developed by Openwave which most WAP-
enabled device are using
The HTTP Interface: It serves to retrieve WAP content from the Internet requested by the mobile
device.

WML: It stands for Wireless Markup Language. It is a mark-up language inherited from HTML,
but WML is based on XML, so it is much stricter than HTML
WTA server: It stands for Wireless Telephony Application (WTA) server used to provide WAP
access to features of the wireless network provider’s telecommunications infrastructure.

2.7 Review Questions

1. Explain why a Micro Browser is used for WAP? Examine what are the WAP application
design processes?

2. Substantiate the common design mistakes in WAP. How do you avoid them? Explain
WAP network with an example.
3. Highlight the usage of WAP. What is MME? What are the names of some of the devices
which uses MME?
4. What are DECKS and how are they constructed?
5. Explain the process from the moment a mobile user request WAP contents till the display
of the WAP contents on the mobile device.
6. Why is it especially important that the design process should be user centered rather than
technology driven? Explain.
7. What are some of the constraints faced by the designers while designing WAP applications?

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