In this article, we address quality in the schema integration process. More specifically, we focus on schema quality improving tasks in the schema integration process. In doing so we describe best practices found in literature used for conceptual modeling as such and apply these to schema integration tasks. Particularly, we address five tasks within the integration process that if used with best quality practices should improve the quality of the integrated schema. Within each best practice, we also address the usage of knowledge repositories to aid in the process of creating a high quality integrated schema. The five tasks are as follows: choosing the right integration strategy, choosing the right conflict resolution methods for the chosen level of abstraction, introducing interschema properties to improve and clarify dependencies, combining methods, approaches and guidelines to facilitate recognition of conflicts and finally restructuring. The main contribution is given in the terms of which best practices in conceptual modeling are combined with important integration tasks.