Integration of openBIS in a typical proteomics workflow. Raw mass spectrometry data and metadata are uploaded into openBIS using dropboxes (via the web interface, file system or remote server). The user can access openBIS through the openBIS webclient to organize, search and share data and metadata. A web portal (P-Grade) is integrated via a set of dedicated portlets making use of the openBIS API to support the building and execution of proteomics computational applications using grids and other computing resources and to hide the complexity of the underlying infrastructure. Processed data such as protXML (stores protein identifications inferred from input lists of peptides as well as quantification data) resulting from processing pipelines are finally imported into openBIS. Quantification data are added to protXML files by using the parameter feature of the protXML schema.