However, we also showed difference in produced errors for each method and different impact at word-level depending of the approach or units. Thus, future work will focus on analysing the orthographic output of these systems in two ways: 1) investigate errors produced by the end-to-end methods and explore several approaches to correct common errors done in French and 2) compare the end-to-end methods in a SLU context and evaluate the semantic value of the partially correct produced words. 
 Question: What will be in focus for future work?
1) investigate errors produced by the end-to-end methods and explore several approaches to correct common errors done in French 2) compare the end-to-end methods in a SLU context and evaluate the semantic value of the partially correct produced words