People might want to know which citizen-science projects are happening in their region. They might want to know which projects are available for them to participant in that are nearby and that are of interest to them and then to decide which projects to join. Having information about which projects exist where makes it easy for directories of projects to remain current, up-to-date, and informative for those seeking to join these citizen-science projects or initiatives.
Project managers need efficient means to share information about their projects with prospective participants. These people are busy. They need efficient ways to keep information about their projects up-to-date regardless of where this information is being shared and who is sharing it. For example, the project managers of the Cos4Cloud project may wish to advertise being listed in MICS (where the impact of the project can be visualised) and may also use the EOSC Portal or CitSci.org to host their project. They may also want to be listed in SciStarter as well as in the EU-Citizen.Science platform. Having these directories all synchronise the information about the project automatically makes it easy for the project managers to change essential details about, for example, who to contact to learn more. Imagine the reaction of the project managers when they realise they can change their project contact email-address in one places and it updates in all places automatically!