This deliverable proposes an architecture for the EMERALD framework. It is produced in the context of WP1-Concept and methodology of EMERALD, more concretely in Task 1.2 EMERALD architecture. It provides a general view of the EMERALD framework, which complements the Data Model presented in the previous deliverable D1.1. This document contributes to these outcomes of the work package:• The architecture of the overall EMERALD software suite and the related structural and behavioural models, as well as data modelling and interaction mechanisms definition.• The integration of WP2, WP3 and WP4 outcomes in the EMERALD audit suite.• The methods to support the integration of pilots in WP5.