Page 14 - DCAP512_WAP_AND_WML

WAP & WML

Notes WAP utilizes binary transmission for greater compression of data and is optimized for long
latency and low bandwidth. WAP sessions cope with intermittent coverage and can operate
over a wide variety of wireless transports.
WML and Wireless Markup Language Script (WML Script) are used to produce WAP content.
They make optimum use of small displays, and navigation may be performed with one hand.
WAP content is scalable from a two-line text display on a basic device to a full graphic screen on
the latest smart phones and communicators.

The lightweight WAP protocol stack is designed to minimize the required bandwidth and
maximize the number of wireless network types that can deliver WAP content. Multiple networks
will be targeted, with the additional aim of targeting multiple networks. These include global
system for mobile communications (GSM) 900, 1,800, and 1,900 MHz; Interim Standard (IS)–136;
Digital European Cordless Communication (DECT); Time-division Multiple Access (TDMA),
Personal Communications Service (PCS), FLEX, and Code Division Multiple Access (CDMA).
All network technologies and bearers will also be supported, including Short Message Service
(SMS), USSD, Circuit-switched Cellular Data (CSD), Cellular Digital Packet Data (CDPD), and
General Packet Radio Service (GPRS).
As WAP is based on a scalable layered architecture, each layer can develop independently of the
others. This makes it possible to introduce new bearers or to use new transport protocols
without major changes in the other layers.

Task What is WAE? What facilities does it micro browser support?

Self Assessment

Fill in the blanks:
1. ………………… computing can help us control information quickly, efficiently, and
effortlessly.
2. Pervasive computing eases life by uniting open ………………… applications with day-to-
day activities.
3. The WAP specifications define a set of protocols in application, session, transaction, security,
and ………………… layers.
4. Carriers will be able to develop ………………… that work with a variety of phones and all
applications and content.
5. ………………… was created after largely unsuccessful efforts of several companies to
arrive separately at a viable technology delivery format.
6. New applications can be introduced quickly and easily without the need for additional
………………… or modifications to the phone.

7. Applications will be written in Wireless Markup Language (WML), which is a subset of
…………………
8. WAP utilizes binary transmission for greater compression of data and is optimized for
long latency and low …………………
9. WAP content is scalable from a two-line text display on a basic device to a full
………………… on the latest smart phones and communicators.

10. The lightweight WAP protocol stack is designed to ………………… the required bandwidth
and maximize the number of wireless network types.

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