Erlang/OTP's DBMS Mnesia is lacking in several important areas to consider when implementing very large databases with massive scalability requirements. This article reveals the result from a study examining what Erlang developers consider important aspects of DBMSs and an analytical hierarchy process (AHP) evaluation on four mature open source DBMSs based on those criteria. AHP is suggested as good method to evaluate DBMSs for Erlang projects. The criteria used in this evaluation were derived from a survey sent to the Erlang community. It should therefore be noted that which DBMS to use in Erlang projects should also be determined by the project's and the software's own specific criteria. Categories and Subject Descriptors D.3.3 [Programming Languages]: Dynamic Storage Management General Terms Measurement Keywords Erlang, DBMS, AHP