Genie 7110 manual Are you sure you want to cancel your

Backward Navigation 7

■Save the values of variables when needed.

If the user exits an entry field, it may be helpful to temporarily save the values of all or some of the variables. This can reduce the amount of information the user must enter in the future. For example, it may be helpful to retain non-secure information entered in an order form, such as the name and address, so that the user does not have to re- enter it in the same browsing session. See “Cookies and Subscriber ID” later in this guide for information on using cookies for this purpose.

■Provide delete shields.

If backing out of an application may cause data loss, provide a card asking the user to confirm the action.

Example 7-4

Openwave Browser

Name (first & last):

John Doe

Alpha Next

Are you sure you want to cancel your

order?

Yes No

Nokia 7110 Browser

Mitsubishi Trium Browser
Order		Order
Name (first &		Are you sure you
last):		want to cancel
John Doe		your order?
	OK	Yes	No

Example 7-4shows how the confirmation card acts as a delete shield if the user backs out of the card with the Name prompt preventing loss of data.

■Retain data in wizard forms.

Many devices have shared Clear and Back keys for text input. Therefore, if the user wants to edit or change the data in one of the forms, return to the first entry card so that the user will not have to delete already entered data. When the user navigates through each card, display the data already entered for that card. It is much easier for users to navigate forward through each card than to delete what they already entered in order to navigate back through previous cards.

February 2001 Genie Application Style Guide 43