EAGLE - AIM Infrastructure specification

The purpose of this deliverable is to provide a high level overview of the Aggregation and Image Retrieval system (AIM) in EAGLE. For the sake of readability, this document provides a description of the two subsystems composing the AIM infrastructure, namely the Metadata Aggregation System (MAS) and the Image Retrieval System (IRS), focusing the reader's attention on functional requirements, constraints and architectural aspects, leaving out detailed programming concerns and API specifications. This deliverable complies with the EAGLE DoW, as described in Work Package 4, EAGLE Aggregation and Image Management Infrastructure, and in particular it fulfills the requirements outlined in tasks T4.1 (Aggregator infrastructure detailed design, implementation and maintenance) and T4.3 (Image recognizer infrastructure detailed design, implementation and maintenance). It is intended to clarify some key aspects for the benefit of all EAGLE partners and work packages, and it aims to ease the work of the following interrelated tasks: T3.1 Definition of the EAGLE metadata format; T3.2 Metadata mapping; T3.3: Planning and preparing the ingestion to Europeana. The document is organized as follows: the first section introduces the high-level architectural aspects of the AIM infrastructure, whilst the second and third sections describe in more detail the two subsystems composing the AIM infrastructure, respectively the Metadata Aggregation System (MAS) and the Image Retrieval System (IRS).