Before revision:  we propose a methodology to evaluate the usefulness of a summary . With this work we unlock important research directions for future work on automatic summarization and we hope to initiate the development of methods in these directions .
After revision:  we propose a methodology to evaluate the usefulness of a summary based on the identified needs of a target group. Third, in more general terms, we hope that our survey will be reused to investigate the needs of different user groups of automatically generated summaries to broaden our perspective even further .