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February 2001 Genie Application Style Guide 1
1
Chapter 1 Style Guide Overview
This document gives developers comprehensive guidelines for developing highly usable
applications that run on Genie supported WAP browsers: the Openwave
browser, the
Mitsubishi
Trium browser, and the Nokia Models 7110, 6210, and 6250
(Nokia 7110, 6210, and 6250) browser. This guide considers various situations and
possibilities, offers the most usable solution, and provides sample code.
Usability tests have shown that it is not possible to write a single usable “generic” version
of an application that will run well on different types of mobile browsers. For this reason,
this document is written to help developers create optimised applications to run on the
Openwave, Mitsubishi, or Nokia browsers.
Organisation of this Guide
This guide begins by outlining some usability philosophies and then gives detailed
guidelines on navigation, selection lists, text display, forms, alerts, and many more topics.
Each section that gives guidelines looks at the topic from four points of view:
• Shared feature set for creating WAP applications. These recommendations apply
to the Openwave, Nokia 7110/6210/6250 and Mitsubishi Trium browsers when
developing usable applications. These guidelines address the shared feature set, that
is, the features that are supported on all of the browsers. Because the browsers
interpret the WAP standards differently when displaying data, this section outlines the
approach that will work on all of the browsers.
• Openwave usability. These guidelines explain how to create the most usable
applications for the Openwave browser. Use the Openwave guidelines in conjunction
with the shared feature set guidelines. Code samples may employ the Openwave
extensions to WML to provide advanced functionality. These extensions are available
to applications running on Openwave handsets through the Genie gateway.
• Nokia usability. These guidelines explain how to create the most usable applications
for the Nokia 7110 and Nokia 6210/6250 browser. Again, use the Nokia guidelines in
conjunction the shared feature set guidelines. Although the Nokia examples are based
on the Nokia 7110 browser, they apply as well to the Nokia 6210/6250 browser. The
few exceptions are explicitly labelled as “Nokia 6210/6250 only”.