ARROW: Accessible Registries of Rights Information and Orphan Works Towards Europeana
Cinzia Caroli and Gabriella Scipione
Elda Rrapi and Giuseppe Trotta
Point of contact for this article: Gabriella Scipione, email@example.com
The European Union promotes programs of "mass digitization" in order to make the cultural and scientific resources in Europe accessible to all, and to preserve them for future generations. The Accessible Registries of Rights Information and Orphan Works Towards Europeana (ARROW) project began in September 2008 with the aim of facilitating the management of rights in digitization projects. Partial funding was provided by the European Commission under the programme "ICT Policy Support". The outcome of the project was an automated system for distributed management of rights information that meets the needs of digital libraries and is easily adaptable to other contexts of use. With the approval of the "ARROW Plus" project in April 2011, the system will be further improved, extending the number of covered countries, and integrating rights information about images contained in books.
The "i2010 Digital Library Initiative"  is an initiative of the European Union's digital libraries that aims to make accessible to all, and preserve for future generations, the European cultural and scientific resources: books, periodicals, films, maps, photographs, music. A key element in digitization and access to digital content is to know clearly the rights status of the content. This is an important issue especially for libraries that intend to digitize their entire catalogues. In many cases, rights holders (or their agents) can be identified, traced and then contacted to request permission to digitize, but often these procedures are time consuming and have high costs. It can happen that rights holders cannot be identified or traced even after a "diligent search"  is performed. In that case the work is considered an "orphan"  and can neither be used nor digitized with legal certainty. Another problem regards the "out-of-print" works ; that is, works claimed by their rights holders as not commercially available. In this context, making this type of content available online can be in conflict with the use of recent versions of it, or can impact the economic interests of copyright holders.
In many countries there are good resources that provide rich bibliographical information on books in print (and out of print books on a smaller scale). However, such resources are not homogeneous at the European level (in particular, they are not present in certain countries recently included in the EU). The main limitation is the lack of interoperability between them, both at the metadata level and at the communication protocols level. Although the bibliographic databases can contain rich information about books in print, they do not contain metadata about rights and permissions of use. This information is instead maintained by publishers, authors and collecting societies in different formats, and is not readily available.
The ARROW project
The Accessible Registries of Rights Information and Orphan Works Towards Europeana  (ARROW) project started in September 2008 with the aim of facilitating the management of rights in digitization projects . It was co-funded by the European Commission under the programme "ICT Policy Support" theme 2 Digital Library. The ARROW project involved the main European players in the value chain of the book (national libraries, bibliographic agencies, associations of authors/publishers, management companies of the copyright) in the following EU countries: Spain, France, UK and Germany. The Italian Publishers Association  was the coordinator of the project. Cineca  was the main technology provider.
The scope of the project focused on books in order to test the feasibility for this type of content. The main objectives were:
ARROW system as interoperability facilitator
The system developed during the ARROW project is a distributed infrastructure made up of the following components:
Figure 1: ARROW system overview
Creating a distributed network of data sources, ARROW acted as "interoperability facilitator", ensuring interoperability between all communities and successfully tackling the following issues:
For the automatic exchange of metadata between the different sources involved in the project, the ARROW team, in collaboration with the specialist support of EDItEUR , experimented with a suite of messages designed ad hoc. This suite of messages is called "ONIX for Rights Information Services" (ONIX-RS) and its first formal version 1.0 was published in October 2011. ONIX-RS relies heavily on the original work of ARROW, but has been extended to accommodate other flows of information in the field of rights, so that it can be used by other organizations or associations working in this field. The ARROW system integrates into its workflow the VIAF service , in order to obtain additional information regarding authors and other contributors, like the date of death, nationality and all the possible variants of names.
The Rights Information Infrastructure (RII)
The Rights Information Infrastructure component of ARROW manages the complex workflow (see Figure 2 below) that retrieves information from data sources belonging to the different actors in the value chain of the book: libraries, databases of books in print (BiP) and repertoires of Reproduction Rights Organisations (RRO). The collected information is processed to obtain the copyright status and the publishing status of the work corresponding to the submitted manifestation (book) as well as of the related works . Other important results obtained at the end of the workflow include a set of information provided by the RRO concerning licensing conditions and reasons supporting the decisions, as well as the identification of works that are probably orphan.
Figure 2: ARROW Workflow diagram
The RII receives the requests for permission to digitise and use the manifestation of a work (for instance a book) from the libraries. It queries the data providers included in the workflow of the country where the book was published (The European Library (TEL)/ Virtual International Authority File (VIAF), Books in Print, RRO) and compiles the gathered results, in order to provide the resulting information on the rights status.
The initial library request is performed at the manifestation level (to be more precise, the initial library request refers to a "resource" where the term resource identifies an instance of a manifestation, for example a particular copy of a printed edition of a book), whereas the response at the end of the workflow is provided at the work level. This means that the initial request passes through stages of identification and matching, work and manifestation clustering and the identification of related works and manifestations; each process adds a piece of relevant information towards the identification of the rights status of the work.
As illustrated in Figure 2 above, the RII workflow can be partitioned in three main stages:
As a result of the above workflow, the following pieces of information have been retrieved:
ARROW Work Registry (AWR) stores and maintains all of these pieces of information for every request processed by the ARROW system.
RII Layered Architecture
In order to increase the flexibility, scalability, maintainability and reuse, the RII system is based on a layered architecture as shown in Figure 3 below.
Figure 3: RII Layered Architecture
The Presentation Layer is the topmost level of the application. It consists of two components: the web interface that presents results to the end user and the web service interface that exposes machine-readable data to external services.
The Service layer is composed of the Business Entities and the Business Components. The former represents the application domain model. Each entity is modelled as a JavaBean which does not contain any service logic. The service logic instead is performed by the 'business components' that contain all the necessary logic and processes required by the system. The processes are carried out by appropriate managers. Each manager is responsible for operating on one or more Business Entities and performing complex elaboration on these entities. The Service Layer exposes the service logic to external users by means of well-defined interfaces.
The Data Layer provides access to either data maintained within the RII system or to data exposed by external services. The RII data layer has three main components:
The ARROW Work Registry (AWR) and the Registry of Orphan Works (ROW)
At the end of the ARROW workflow, the results produced by the RII populate both the RII repository and the ARROW Work Registry. The ARROW Work Registry (AWR), in turn, forms the foundation for the Registry of Orphan Works (ROW). In fact, the works stored in the AWR that are at any point in time marked as "ProbablyOrphan" are added to the ROW.
The starting point for the design of the Registry of Orphan Works within the ARROW system was provided by the High Level Expert Group (HLEG) Final Report on Digital Preservation, Orphan Works and Out of Print Works, which included recommendations and key principles for rights clearance centres and databases for orphan works . In addition, in order to define the ROW requirements, the different stakeholder communities represented in the ARROW consortium and in the countries in the pilot system were consulted. The main stakeholders involved were the Collective Management Organisations and Reproduction Rights Organisations, identified by the HLEG as natural candidates to run Orphan Works databases and Rights Clearing Centres at this time.
The design of the ARROW Work Registry (AWR) also considered the ISTC  metadata for works, in order to guarantee interoperability with the services provided by the ISTC international agency for ISTC registrations. The information about works contained in the Registry of Orphan Works was made publicly searchable through a web interface, thus allowing the rights holders (individually or through a collective representative organisation or agent) to claim their rights.
ARROW pilot: ready to be used
The ARROW project was completed in February 2011. As of September 2011, the ARROW system can be used to search for works published in France, Germany, Spain and the United Kingdom.
The system validation was carried out for the pilot countries under the leadership of the University Library of Innsbruck  and showed (see Table 1 below) a substantial benefit to using ARROW to search for authors, publishers, works and rights status, compared to the traditional manual search: the time savings varied from 72% in the Spanish pilot to 97% in the UK pilot. In large digitisation projects, time savings at this level represent substantial cost reductions for libraries, as well as for others who need to retrieve copyright information on books.
Table 1: Time Saved Using ARROW; 63-102 Records
Further results regarding the ARROW system validation can be found in the study undertaken by the British Library  on a random selection of 140 books published between 1870 and 2010 from its own collection. The study sought to determine whether permission could be received to digitise the books and to compare the outputs of a "manual" diligent search for rights holders against the "automated" diligent search of the ARROW system.
Additionally, during 2011 the Wellcome Library began a pilot digitisation project  built around the theme "Modern Genetics and its Foundations", with 1,400 books published between 1850 and 1990. The initiative, funded by the Wellcome Trust, aimed to assess the feasibility of a large digitisation plan that included copyrighted works, in terms of time and costs to undertake the diligent search. The target was to seek permission from rights holders to digitise and make the works available for free through the web.
Wellcome Trust agreed to use the UK RRO services to identify right holders for the books in the pilot. And the UK RRO used the ARROW system themselves to help process the Wellcome Trust records and speed up the diligent search process. As of November 2011, the UK RRO is performing the diligent search for the pilot books, and will be able to provide the needed licensing in 2012.
In April 2011, a continuation of the ARROW project was approved. The ARROW Plus project is now in full swing. Its main goals are to extend the number of covered countries, and to analyze and extend its services to the domain of images. The ARROW Plus project includes the main stakeholders in the following countries of the EU area: Spain, France, UK, Italy, Germany, Austria, Slovenia, the Netherlands, Norway, Finland, Denmark, Belgium and Sweden. The Italian Publishers Association will act as coordinator of the project, and CINECA as the technology partner.
The authors wish to acknowledge the work of the ARROW Project Team for both the technical and non-technical aspects of this paper.
Notes & References
 i2010: Digital Libraries High Level Expert Group Copyright Subgroup (2008), The Final Report on Digital Preservation, Orphan Works and Out of Print Works.
 CINECA is non-profit consortium of 50 Italian universities, the National Research Council (CNR), the National Institute of Oceanography and Experimental Geophysics (OGS) and the Ministry of University and Research (MIUR).
 British Library (2011), "A rights clearance study in the context of mass digitisation of 140 books published between 1870 and 2010".
 Wellcome Trust (2011), "ALCS and PLS provide innovative rights identification service for Wellcome Library digitisation project".
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