Organization and Flow
1 From the user's perspective, eliminate the concept of modules, and group functionality together by how it's used. By placing these grouped modules within tabs, for example, the interface can become focused only on the task at hand and downplay extraneous controls, dramatically simplifying the interface.
2 Create smoother flows between related modules.
3 Put frequently used tools close at hand. For example, let user add contacts from within the email screen?
4 Eliminate clutter. Remove defunct modules from the interface, or, if for some reason they need to remain, sequester them.
6 Modernize (and standardize) the look-and-feel.
7 Reconsider the use of iconography. Having an icon for every single module is overwhelming, and its difficult to make each icon memorable. Consider using icons much more sparingly.
8 Increase the size of the type. Some type in the interface is really small 10px or smaller. Larger type (if handled properly) will be easier to read and appear friendlier.
9 Sweat the details. Taking time to carefully align form labels with their respective form fields, for example, conveys an image of quality and precision.
12 Avoid overlapping modals.
13 Add on-states to the navigation to make it easy for users to orient themselves.
Interactivity and Behavior
14 Anticipate the users first move. For example, on page load, automatically place the focus on the first form element on create pages when its a text field, instead of forcing the user to click into the field.
15 Make it impossible for users to make errors. Validate forms before the user clicks Save to highlight errors or omitted fields, rather than after clicking. (For example, provide clear feedback and disable the Save button until the user has filled the required fields.)
16 Make it easier to edit content. Instead of having the user click on an edit icon to the right of the items name, users should be able to click on the title itself.
17 Place like controls in like positions. For example, sometimes pop-ups are closed with a Close link in the upper-right corner, and other times they are closed with a Cancel button near the middle of the pop-up.
21 Keep module names as straightforward as possible. consider names that are descriptive rather than clever.
22 Better name for virtual folders/virtual addressbooks/etc - Smart Folders? ...
23 Allow users to create daisy chains all at once, in a single flow, instead of forcing them to switch back and forth between modules
24 Scale more gracefully as more items are created.
Put frequently used tools at users fingertips. Don't make users switch modules to perform a regularly needed function
25 Search all content with a single, global search box instead of having to use each modules search function.
26 Tag any item using the same, global taxonomy. Retrieve content more easily throughout the system by tagging any item.
27 Make modules consistent. Default sorts should be consistent, searches should be consistent (some modules search slugs, some do not), modules should have the same component parts.