SetupDesignGuide.pdf - Firmware Encoding Index

Setup Design Guide
DRAFT
5
User Interface Design
The Setup described here is targeted at the following design goals
1. Walk up and use interface – the user should not have to have training to use the user interface to
successfully navigate the application. The user may or may not understand the actual fields
presented.
2. The driver should work in the firmware, with no reliance on rotating media or an operating system.
It should use the fonts, strings, and forms as defined in the HII specification. Part of this
development is to ensure that this support is sufficient.
5.1 Home Page
The root of the menu hierarchy (“the home page”) is the only page with no associated IFR. The page
must be generated on the fly by the configuration driver. The page is the first presented to the user and
has the following functions.
1. Enables the user to choose an application to run. If three drivers exported data to the HII database,
three different hyperlinks should be presented to choose from. Each of these hyperlinks may have
several language versions to choose from.
2. Allow the user by virtue of their choice of hyperlinks to pick a language to use.
3. Allows the user to exit with or without updating the configuration.
5.2 Subsequent Pages
The format of subsequent pages is derived from the IFR representation of the corresponding form. The
first form appearing in a form set is taken to be the root of the hierarchy represented by that form set.
5.3 Key-based Navigation
Setup is navigated by a series of keys. The bottom line of the screen is devoted to indicating the active
keys at any time. In the UI lingo, this is known as ‘keys help’. The keys are used for navigation around
the menus, and for modification of the configuration. The keys selected below are chosen because they
do not change definition based on language and because they conform to several standards. The US
English names of the keys are used for description.
The keys used in Setup are:
- Up Arrow, Down Arrow – move the highlight between fields on a menu. (Also Tab and
Shift-Tab) The page is scrolled as necessary to display the next / previous prompt and
option text.
- PgUp, PgDn – scroll text. It is possible (although not likely) for string items (text, prompts,
etc.) with no questions to fill the entire screen. PgUp and PgDn enable scrolling of the forms.
If the currently selected option is not displayed on the page due to use of PgUp and PgDn,
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