Search Box - The first iteration clearly show the search bar for 4 different types of keyword at all time, while the second iteration puts a smaller search box in the page header. The first iteration also emphasizes the fact that photos can be searched using 4 different keyword categories, while the second iteration introduces only a single search box on the front page.
Search Mode - In the first iteration, searching by photographer's name and location give two different search result pages, while the second iteration treats all keywords in the same way.
Mode - The second iteration has a tab interface mode for user's control panel and a normal viewing mode, while the first iteration integrates them together.
Posting Photos - The first iteration has a single page for selecting a photo and supplying photo information, while the second iteration has two separated pages, which is originally designed for bash batch uploading.

Observations

(Usability problems you discovered from the testing. Describe what the users did.)

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Searching
- The user pointed to the four-category search box and said "Are these all required for each photo?"
- He made several attempts to search for the photo.
  - He put "Joshua Tree" in the "Poster's Name" box. (=> Maybe we should change the wording.)
  - He put "tree" in the "Type of Scenery" box.
  - He clicked on a thumbnail with label "Nature".
- He made a comment on the top page's thumbnails: "Oh! This is just a random list of photos."
- He asked: if a user has many posted photos, will the photos be organized in categories.
- He wanted to see all information (as opposed to only 1 word) under each thumbnail.
Commenting
- He asked if the comment textbox will have scrollbars when a lot of text has been typed in.
- He looked for a "cancel" button for the comment box.
- He wondered how to go to other pages of the sites.
Posting
- He tried to post a photo without logging in first.
- He clicked the filename textbox instead of the "Browse" button
- He saw two buttons, "Browse" and "Upload". He got confused and asked why there are two buttons.

Searching
- The user searched by location, "Joshua Tree."
- She asked about how to search for her own photos
- She quickly got to the desired photo
Commenting
Posting

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