The LearningOnline Network with CAPA
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In-Class Exam Scanner
The goal of this project is to create a portable exam scanning station for LON-CAPA randomized exams or quizzes. The randomization means that every student has a different version of the problems. The setup will enable instructors to frequently run fully randomized exams and quizzes in class with immediate feedback and grading inside of LON-CAPA. One or more of these stations can be set up in a lecture hall, using standard ethernet connections.
The current development setup consists of a ScantronTM 1212 scanner, and a LantronixTM UDS-10 device server. The devices are portable and can be deployed anywhere on campus.
During initialization, the device server will obtain an address anywhere on campus through DHCP, and connect to a daemon process running on the LON-CAPA servers. LON-CAPA will validate the identity of the scanner and configure it. When a student feeds a sheet into the scanner, the data will be captured and analyzed by the LON-CAPA daemon, and the exam sheet either be accepted (ejected at the back), or rejected (ejected at the front) if bubbles are missing, etc. A later phase may include an LCD display for more detailed error messages. The instructor can initialize the grading process at any time.
Mock-ups of exam sheets (two types distinguished by row 1 bubble, two color each):
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