The Archivematica project is integrating a number of open source tools and applications to create a comprehensive digital archives system that is compliant with the ISO-OAIS standard and is able to implement media type preservation plans based on an analysis of significant properties. Archivematica is a comprehensive digital preservation system. Archivematica uses a micro-services design pattern to provide an integrated suite of free and open-source tools that allows users to process digital objects from ingest to access in compliance with the ISO-OAIS functional model. Users monitor and control the micro-services via a web-based dashboard. Archivematica uses METS, PREMIS, Dublin Core and other best practice metadata standards. Archivematica implements media type preservation plans based on an analysis of the significant characteristics of file formats.