The constant apparition of new technologies challenging and disrupting the way to develop software pushes dayby-day software migration to become more and more common. Despite the "normality" of software migration, it is a problem that had ruined more than one company in the past. It is no wonder that different methods to migrate software have been the driver of many efforts and the centre of many discussions for years, resulting in multiple solutions and strategies to accomplish the desired migration. However, there is a lack of efforts on how software reengineering can be used to assess the process of planning by measuring and predicting the cost of a migration. In this article, we present Alce, a software migration assessment and prediction tool under development in the context of a collaboration with Berger-Levrault, for migrating Microsoft Access applications. We present a simple use case that represents most of the usages we had given to the tool during the analysis and reporting of two different applications to be migrated, to assess the extremely hard task of planning a software migration. We present as well a second use for task definition and prioritisation in the process of library migration. We discuss future features based on the interaction with one of the project managers, and finally, we discuss the lack of software reengineering tools usage in the context of software migration.