Appendix To Software Migration: A Theoretical Framework A Grounded Theory approach on Systematic Literature Review

Software migration has been a research subject for a long time. Major research and industrial implementations were conducted, shaping not only the techniques available nowadays, but also a good part of Software evolution jargon. To understand systematically the literature and grasp the major concepts is challenging and time-consuming. Even more, research evolves, and it does based on the assumption that many words (such as migration) have a single well-known meaning that we all share. Since since these words meanings are rarely explicit, and their usage heterogeneous, these words end up polluted with multiple and many times opposite or incompatible meanings. In our quest to understand, share and contribute in this domain, we recognize this situation as a problem. To tackle down this problem we propose a taxonomy on the sub- ject as a theoretical framework grounded on a systematic literature review. In this study we contribute a bottom-up taxonomy that links from the object of a migration to the procedure nature migration, passing by migration drivers, objectives and approaches. We contribute a classification of all our readings, and a list of research directions discovered on the process of this study.