Forms of communications in scratch and the SOLO taxonomy

Abstract

This paper attempts to categorize parameters of communication between codes observed in the Scratch programming environment, using the SOLO taxonomy. These parameters are the form of communication (within an object, between different objects and to serve external devices scenarios), the mechanism used for communication (Polling and Interrupt techniques) and the ratio between the number of transmitters and receivers, which will be considered in a future work. Implementing this categorization in a two-dimensional table of representative codes for each case is formed. In this table, one dimension corresponds to the forms of communication and the other dimension to the mechanisms used. The ranking of the codes in each of the dimensions is done by means of the levels of the SOLO taxonomy. The table can be used to develop criteria for assessing the qualitative characteristics of the codes produced by students within a broader assessment system.