|Article title||APPLICATION ARCHITECTURE FOR SUPPORT OF MULTIPLE QUESTION TYPES AND THEIR AUTOMATED GRADING IN E-LEARNING SYSTEMS|
|Section||SECTION II. MODELING OF PHYSICAL PROCESSES AND SYSTEMS|
|Month, Year||03, 2016 @en|
|Index UDC||004.42, 378.14|
|Abstract||Existing open-source Learning Management Systems (LMS) do not have sufficient functionality embedded to allow creation of complex question types and their automated grading. At the same time, a number of studies has been carried out that suggest a lot of methods for automated scoring of complex question types in different disciplines. However, the link is missing between the two that will make it possible to integrate the new scoring methods into the LMS. This study presents extensible solution that allows integrating different input types and adding algorithms for their automated grading. A model and lifecycle for objects of “algorithmic question” type are developed. The lifecycle of each question is managed by functions create(), compile(), render(), and submit() for automated grading on server side. For saving the state of the model a common format is developed that unifies item presentation on different devices and systems. The implementation of the approach is performed in the form of Java module that supports a protocol for integration with the existing LMS. Fault tolerance of the module is achieved by storing the state of object model in database. The usage of this method saves teacher’s time by automating scoring of assigned homework assignments and tests. The upside of the suggested approach is the ability to generate algorithmic question variations, which allows a teacher to assign a unique version of the same task to each student in the group.|
|Keywords||E-Learning; e-assessment; Learning Management Systems; automated scoring; question types; Java; REST|
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