This document reports the top-level architecture of the GreenSCENT web platform. It describes themain components, their interactions, and the features each one offers.Most components are considered as black boxes, so the details of their inner architecture are notdescribed. However, some components are detailed further to highlight the most relevant features ofthe system, such as scalability or performance.The guidelines reported in the deliverable D3.1 (GreenSCENT platform design and integration)which focus on the management of multimedia content related to green deal topics, laid the groundfor the architectural choice of the web platform and the definition of the web interfaces andcomponent/functionality interactions.Furthermore, this document proposes a section specifically designed to guide end-users on how touse the web application. This section describes web interfaces in terms of:• The proposed features (filters, buttons, etc).• How to read the data.• The data required (mandatory/optional) to perform an action.• Any other information useful to help the users to understand the interface.