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In order to present the user with a consistent user interface (UI) certain guidelines or best practices should be followed. The guidelines presented here are intended for the back office (manager) applications. Layout for public-facing screens (such as eCommerce) are typically installation-specific, and may have separate customer and will have different guidelines.

Navigation

OFBiz navigation is separated into four main categories, and some screens may have others. Navigation links should appear only for targets that the user has permission to access.

Main Navigation

This section (in the header of the screen) contains links for frequently used business and end-user oriented applications. Links to less frequently used and more technical applications are kept in secondary navigation. The main navigation area should indicate which application is currently selected if the current application is linked to from here.

Secondary Navigation

This section (in the footer of the screen) contains links for less frequently used applications. The secondary navigation area should indicate which application is currently selected if the current application is linked to from here.

Application Navigation

This section contains the application's title, plus links to screens functional areas within the application. Application navigation should indicate which screen area is currently selectedactive.

Application

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Area Tabs

This section contains links to sub tasks within an application task. It typically appears as a tab bar in the Main Content Area. Sub navigation should indicate which sub task or screen is currently selected.

Main Content Area

consists of tabs that split up a single area of an application into multiple screens that all fit together and are generally parameterized with the same parameter or set of parameters (for example the productId for all of the Product and related tabs). The tabs should only include screens that are part of the set of screens for the area. Links to screens that are not part of the set of screens for the area should be included in the links below the tab bar.

Main Screen Area

The Main Screen Area is the area inside the decorator that changes for each area of an application. In other words it does not include the header or footer, or side-bars if the application has them.

This area of the screen is focused around whatever task or process the user is performingThe main content area contains a particular task. Putting multiple tasks in the main content area is discouraged, because it leads to a complicated and difficult to understand screen. If multiple tasks are used in a single screen, they should be clearly separated.

Generally speaking, the main content screen area should contain the following items, going from top to bottom:

1. Optional sub navigation application area tab bar (mentioned above).
2. Page title, using the h1 style. The page title displayed in the main content area should match the title bar title. This makes a strong connection between screens and bookmarks and browser history.
3. Optional related task screen buttons, in the button bar style (external links outside of a certain set of screens). For instance, a Find screen might have a "Create New" button here.
4. The task main form or other interaction area.

Many screens will fall into a few general categories, and those categories are detailed below.

Create or Add Screens

Generally speaking, create Create or add screens should contain the following items, going from top to bottom:

1. Optional sub navigation application area tab bar.
2. Page title, using the h1 style.
3. Data entry form, including a Save button.

Avoid having unnecessary controls on the screen. For instance, a create screen should not contain a "Create New" button on it - that would be redundant.

In some cases, screens with a create screens form also contain a list of created existing items. That type of screen is discouraged, but if If it is used the item data entry screen form should be above the existing item list. In addition, the item data entry screen should be collapsible and initially collapsed. If the new item form area is not collapsible it should then be below the list form with existing items.

Find Screens

Generally speaking, find Find screens should contain the following items, going from top to bottom:

1. Optional sub navigation application area tab bar.
2. Page title, using the h1 style.
3. Optional related task buttons, in the button bar style. For instance, a "Create New" button.
4. Optional Search Options data entry form. The form should be collapsible, and collapsed when a find has been done and there are results for it.
5. List of found items - the search results.

Using the FindScreenDecorator is recommended - it will insure facilitate correct layout and it will reduce screen widget code.

The initial display of search results is controlled by the widget.defaultNoConditionFind property in the widget.properties file. That setting should be respected and not overridden in screen widget codeIf a specific behavior is desired regardless of that setting the noConditionFind should be set in the screen actions.