(The alternative would have been to remember your exact position in each section, as in previous versions of USC, but that made it harder to understand how to navigate up to the top level in each.
Instead, we rely on Back and Forward navigation to preserve state.) Test case: (sc-006) In the “All Software” section, navigate to Abi The navigation history (not to be confused with USC’s “History” section) is a browser-like history of which screens USC has navigated to, either directly (for example, by clicking a link or using the navigation bar) or indirectly (for example, by following an The Back and Forward commands should navigate through this navigation history, as with a Web browser: navigating using the history should not add items to it, and navigating without using the history should discard all forward items from the history.
All following items in the navigation bar should slide to the right, making room for a “Canonical Partners” item, highlighted, between “All Software” and “Installed”.
Next, from the “Installed” menu choose “For Purchase”.
While installing Skype, I was informed that a “later version is available in a software channel.
The “Canonical Partners” item should disappear, and the “Installed” item should slide to the left, making room for a “For Purchase” item, highlighted, between “Installed” and “History”.
Click Back; the “For Purchase” item should disappear from the navigation bar, and the “Canonical Partners” item should reappear, highlighted once more.
This redundancy increased the amount of interface people had to learn, wasted space on the Ubuntu CD, fragmented development effort, and made people more likely to think that unsanctioned software installation methods were safe.
Ubuntu Software Center replaces Add/Remove Applications, Synaptic, apturl, and GDebi, and acts as one of the main entry points to Software & Updates Settings.