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One design decision we made to simplify implementation was that all information - namely, the list of sentences, the words, and their translations and romanizations - would be retrieved from the server at login time. This was meant to ensure that no latency from communicating with the server would be seen once the user has been logged in and is using the main interface. However, one usability issue which resulted was that login times tend to be long due to all the downloading that is taking place. We managed to alleviate this by having shared portions of the data that would need to be downloaded by all the users (for example, the word database) be loaded downloaded in the background while the user was still entering his login credentials at the login screen. Additionally, we have a loading screen with an animated progress bar to provide feedback for the user while the page is loading. Another issue which results from our decision to download all data from the server at login time is that if other users contribute a sentence, then the sentence won't be observed until the next time the user logs in.
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