This deliverable provides a conceptual specification of the HEIR framework architecture and deployment. It presents the current status of the implementation of the HEIR modules grouped into three architecture layers, namely, the Technology Facilitators layer, the Core Framework layer, and the Visualization layer. Also, it depicts the communication between HEIR modules based on the current use case scenarios elaborated in WP6. It presents the integration methodology and specifications, the identified risks and mitigations as well as introduces the integrated solution testing methodology. The results of this deliverable will serve as guidelines for the technical WPs (WP2, WP3, WP4, WP5) and for the HEIR integrated framework final version. Note: The deliverable is in draft status as it is not yet approved by the EU.