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WAP Service Developer's Guide for Nokia Series 40
Version 1.0
Copyright © 2002. Nokia Corporation. All rights reserved.
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1 INTRODUCTION
This WAP Service Developer's Guide provides information and practical examples for
developers who want to optimise their existing WAP services for the Series 40 phones. Series
40 is a UI category for Nokia 128 x128 pixel screen resolution. It comprises a passive matrix
colour screen with two soft keys. The current Nokia handsets that belong to this category are
introduced in Chapter 3. This document highlights the possibilities, limitations, and
requirements of service development, and provides a good introduction to the Nokia style of
designing user interfaces.
The Wireless Application Protocol (WAP) enhances the functionality of mobile handsets
through real-time interactive services. The protocol has been designed especially for small
screens and low bandwidths, and it offers a wide variety of wireless services over the
Internet for handsets. It was also designed to allow content to be delivered over any bearer
service, even when delivery of the services is enabled over GPRS, 3G or any other type of
network. WAP over GPRS opens up new possibilities for application development, and there
are also some optimizations in GPRS, that can be done by service developers.
Chapter 2 describes some general usability issues concerning WAP service development.
Chapter 3 introduces the browser user interfaces elements, keys, display and browsing
conventions. Chapter 4 outlines some general WML elements, which are mandatory features
on WAP 1.2.1, according to WAP Forum specifications. Chapter 5 introduces some optional
WAP 1.2.1 features that are supported in most of the WAP1.2.1 compliant phones.
This guide is not written for service developers only, but essentially for anyone
involved in creating the wireless information society and who needs to know more
about service creation on small mobile terminals. It can be used in conjunction with
the Nokia Mobile Internet Toolkit.
The Nokia Mobile Internet Toolkit offers developers an environment for creating,
testing, and demonstrating WAP applications. This allows service providers to
evaluate the usability of wireless applications and services together with their end-
user organization. In this guide, we have collected a lot of what we have learned to
help developers improve their services. We believe that good usability will increase
use and satisfaction, and thus increase revenues for service providers.
This guide does not purport to describe WAP in detail, and it is not meant to replace
any WAP specification.
1.1 References
User's guide for Nokia 7210
WAP Characteristics list can be found at http://www.forum.nokia.com/
The Nokia Mobile Internet Toolkit can be downloaded from
http://www.forum.nokia.com/
GPRS related documentation could be found at http://www.forum.nokia.com/