Access to Open Data platforms: a group of services to enable standardized access to data.a. IT Managers can deliver VREs enabling effective discovery and access to heterogeneous data platforms; b. Data Managers can easily enable data workflows operating on heterogeneous data platforms; c. Individual scientists can easily discovery, access, and use heterogeneous data platforms by exploiting single sign-on and transparent policy and license management; d. Scientific Advisory working group (user group) empowers working groups with a simple-to-use rich data catalogue populated with a wide spectrum of data generated and maintained by different data platforms.The service is widely used by the members of the following VREs:Biodiversity Lab, ScalableDataMining, TabularDataLab, Aquaculture Training Lab, InfraTraining, SustainableBlueEconomy, Blue Datathon, DRuMFISH, ICES_BNetworkAnalysis, ICES_DALSA - ICES Trainign Course on Data Limited Stock Assessment, ICES_DASC - ICES Training Course on Design and Analysis od Statistically Sound Catch Sampling Programmes, ICES_FIACO - ICES Trainign Course on Principles and Methods of broadband/wideband technologies: application to Fisheries Acoustics, ICES_FIACO2017 - ICES Trainign Course on Principles and Methods of broadband/wideband technologies: application to Fisheries Acoustics, ICES_AbundanceEstimationFromAcoustic - ICES Training Course: Introduction to abundance estimation from fisheries acoustic surveys, ICES_IntroStockAssessment - ICES Training Course: Introduction to Stock Assessment, ICES_IntroToREnv - ICES Training Course Introduction to the R Environment, and more.