2.1. User Interface Overview

There are three user interfaces to the Calendar Tool. The primary interface is for regular users to browse and edit their calendars. A "regular user" is defined as a registered user without special administrative privileges. A separate interface is provided for administrative users to maintain Calendar Tool databases and set default user options. A third interface, for unregistered users, is a subset of the regular user interface.

When a regular user initially invokes the Calendar Tool, the screen appears as shown in Figure 1.


Figure 1: Initial screen for a regular user.



The initial display consists of two windows: a pulldown command menu and a display of the current monthly calendar. The calendar entry for the current date is highlighted with a widened border. The monthly display is the standard default view. The user can change this and other default settings using the option commands.

For a system administrator, the initial interface is shown in Figure 2.


Figure 2: Initial screen for system administrator.



The initial display consists of a command menu and a window for the Calendar Tool user database. The user database has one pre-defined entry for a system administrator. Other users are added with the adminstrative commands.

2.1.1. Command Summary for Regular Users

Figure 3 shows an expansion of the command menus for the primary user interface for regular users.


Figure 3: Expanded command menus for the regular user interface.



The File menu contains typical commands for manipulating data files and performing other system-level functions. `File New' creates a new empty calendar. `File Open' opens an existing calendar from a previously saved file. `File Close' closes the currently active calendar, offering to save if it has been modified since opening. `File Close All' closes all open calendars, offering to save any that have been modified.

`File Save' saves the currently active calendar on the file from which it was opened, or on a new file if it was created from a new display. `File Save As' allows the current calendar to be saved on a different file from which it was opened or most recently saved upon. `File Save All' saves all currently open calendars.

`File Save Config' saves the current screen configuration of all Calendar Tool windows. The saved configuration file can be used for a subsequent invocation that starts the Calendar tool in exactly the same configuration as was saved.

`File Print' prints the contents of the currently active display window in a form suitable for output to a printing device capable of displaying text and graphics. `File Exit' exits the Calendar Tool, offering to save any modified calendars if necessary.

The Edit menu contains commands for manipulating calendar data during editing. `Edit Undo' undoes the most recently completed editing commands. Repeated successive invocations of `Undo' undo successively earlier commands. `Edit Redo' redoes the most recently undone command. Repeated successive invocations of `Redo' redo the series of undone commands in reverse order. `Edit Repeat' displays a dialog that allows the most recently invoked command to be repeated one or more times.

`Edit Cut' removes and copies the currently selected datum in the current display. `Edit Copy' copies the currently selected datum without removing it. `Edit Paste' inserts the most recently cut or copied datum at the currently selected edit point in the current display. `Edit Delete' removes the currently selected datum without copying it. `Edit Select All' selects all editable data in the current display.

`Edit Find' performs a search for a text string. The search is performed in all open calendars. Successive invocations of search with an unchanged search string search for further occurrences of the string until all occurrences are found. `Edit Command' allows the user to enter any Calendar tool command in textual form, including sequences of commands to form scripts.

The Schedule menu contains commands to schedule four types of item on a calendar. An Appointment is an item scheduled for an individual user, containing a title, time, date, and other information. A Meeting is similar to an appointment, but may be scheduled for multiple users of the Calendar Tool. A Task is a form of "to do" item, with information similar to an appointment plus other task-related information. An Event is the simplest form of scheduled item, containing a subset of the information in an appointment. Events are useful for scheduling simple, one-time items.

`Schedule Categories' allows the user to view and edit the categories of scheduled items. A category is a descriptive, color-coded label used to help organize calendar items.

The View menu allows the user to browse through a calendar in a variety of ways. `View Item' displays the scheduling details for a selected scheduled item. `View Day' displays details of the currently selected calendar day. `View Week' displays the seven-day week in which the currently selected day appears, with less detail than the daily display. Weeks can be displayed in tabular or list format. 'View Month' displays a large-grain view of the current month. `View Year' displays a very large-grain view of the current year. Each of these view commands can display its results in a separate window. With this feature, the user can create side-by-side displays to view any number of consecutive days, weeks, months, or years.

`View Next' and `View Previous' move forward and backward in the current display, based on the display granularity (i.e., item, day, week, month, or year). `View Goto Date' displays a dialog for choosing a specific date to become the current date in the active display.

`View Lists' displays lists of currently scheduled items of the four schedule types -- Appointments, Meetings, Tasks, and Events, or of all item types together. Custom lists can also be created, showing selected items only. `View Filter' allows the user to hide selected information from calendar displays. Any or all of the four types of scheduled items can be selectively hidden. The user can also construct custom viewing filters, based on a wide range of filtering criteria. Custom filters apply to both calendar and list views uniformly.

`View Other User' allows the current user to view the public portions of other users' or groups' calendars. Each individual user controls the visibility of scheduled items that other users may see.

`View Windows' allows the user to select for viewing from all active display windows. The `Close' command in the `View Windows' menu closes the current display window by removing it from the screen.

The `Windowing Mode ->' submenu provides three settings for the Calendar Tool windowing mode. In `Two-Window' mode, all views are shown in just two windows, one for calendars and the other for lists. In the default `Per-Level' mode, each level of the calendar, from individual item through full year, is shown in a separate level-specific window; each type of list is also shown in a separate window. In `Multi-Window' mode, the result of each and every view command is shown in a separate window, even for commands at the same level or the same type of list. Multi-window mode allows the user to create side-by-side displays of adjacent calendar periods.

The View Windows Magnetize command controls the "magnetic" property of display windows. When a window is magnetized, it "sticks to" an adjacent window when dragged next to it.

The Admin menu contains commands to access the three system databases -- users, groups, and locations. The User database contains a record for each officially registered user of the Calendar Tool. The Group database defines user groups, primarily for meeting scheduling purposes. The Location database defines rooms and other venues in which meetings can be held, including information about the facilities available in the locations. Regular users only have read access to the databases, that is they cannot add, change, or delete any database information.

The `Admin Central Host' command displays the identity of the computer that is used to coordinate calendar tool users. `List Admins ...' shows the Calendar Tool IDs of all system administrators. The `Login' command allows a user with administrative privileges to launch the administrative interface from the regular user interface.

The `Options menu has commands for setting various system options. The options are organized in four major areas: `Times and Dates', `Scheduling', `Viewing', and `Administrative'.

The Help menu contains commands for viewing documentation of the Calendar Tool. `Help About' displays a brief description of the tool, including information about the tool developers and how they can be contacted. `Show Quick Help' activates brief help messages that appear when the user moves the mouse over various areas of the display screen. `Detailed Help' displays an online version of the complete Calendar Tool users manual.

2.1.2. Command Summary for Administrative Users

Figure 4 shows an expansion of the command menus for administrative access to the Calendar Tool databases.


Figure 4: Expanded command menus for the administrative interface.



The `File' menu has a reduced set of commands, since databases and system-wide options are stored in fixed files. The `File Save' command saves all database changes performed by the administrative user. `File Save Copy' saves a backup copy of the databases in a selected file directory. `File Print' prints the contents of one or more databases in a form suitable for output to a printing device capable of displaying text and graphics. `File Exit' exits Calendar Tool Administration, offering to save if necessary.

The `Edit Menu' in the administrative interface is a proper subset that in the regular user interface. The edit commands that are present have the same functionality as in the regular interface.

The `Admin' menu provides access to the three databases. Users with administrative privileges can add, change, and delete database information. The `Central Host' command allows the administrator to view and change the identity of the Calendar Tool central host computer. `List Admins ...' shows the Calendar Tool IDs of all system administrators. The `Password' command allows the adminstrative user to set her own administrative access password. `Notify Users ...' provides the means to send a message to some or all users.

The `Options' menu has the same commands as for the regular user. When an administrator sets option values, the values serve as the defaults for all regular users.

The `Help' functionality is same as for regular users. Help content is modified accordingly to describe the commands that are particular to administrative users.

2.1.3. Command Summary for Unregistered Users

The interface for unregistered users is a proper subset of the regular user interface. The following are absent in the unregistered user interface:

Description of these commands is absent in the help content.

2.1.4. Screen Map

Figure 5 shows a hierarchical map of the user interface screens for regular users.


View full screen map.

Figure 5: Top-level screen map.



Figure 6 shows a screen map for administrative users.




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