Pericles project
Promoting and Enhancing Reuse of Information throughout the Content Lifecycle taking account of Evolving Semantics

Aims and objectives

Objective 1: To enable trusted access to digital content that is complex, heterogeneous, highly-interconnected, and subject to change, and to facilitate continued understanding and reuse of those objects across all phases of the lifecycle. This will be achieved by:

  • Developing a model based on a linked data paradigm for describing the resources in preservation environments – including content, metadata, processes, users, and policies – and for managing their dependencies and consistency as the environments evolve.
  • Developing a lifecycle model that addresses changing digital ecosystems, including evolution of policies, processes, content semantics, contexts and users, and an associated framework and tools for implementing data lifecycle management strategies.
  • Defining an embedded, self-describing object model  –  containing  extracted  semantic and contextual metadata and provenance  –  and developing tools for  extracting such metadata from heterogeneous content, environmental and usage information.
  • Developing an architecture and framework for preservation environments that enables lifecycle management strategies to be deployed on distributed infrastructures.
  • Reducing user workloads in appraising and accessing content through the development of semi-automated processes and intuitive content discovery tools.


Objective 2: To develop formalised means of representing, deriving and enforcing sets of policies that govern  i) the management and evolution of content throughout the data lifecycle, and  ii) the management and evolution of the policies themselves (i.e. the policy lifecycle). This will be achieved by:

  • Extending and adapting existing lifecycle models to address temporal evolution of content semantics and changing preservation processes, policies and services.
  • Investigating formal approaches for representing policies and for deriving enforceable policies.
  • Developing mechanisms for verifying policy enforcement, e.g. for the purposes of auditing preservation environments.
  • Creating a registry of general-purpose policies that address data and policy lifecycles.


Objective 3: To prototype and evaluate our approaches, processes and tools via integrated test beds addressing different application domains and users. This is achieved by:

  • Integrating and deploying the components (tools, services, workflows, policies) in prototype test beds.
  • Evaluating the ability of the test beds to support the functionality required by the targeted communities (media, science), across all phases of the data lifecycle, and in accordance with identified evaluation criteria.
  • Developing case studies based on the targeted communities’ requirements that demonstrate how the project outputs may be deployed in operational environments.


Objective 4: To facilitate sustainable reuse of project outputs by sharing and disseminating the knowledge created by the project. This will be achieved by:

  • Building Communities of Practice around a number of topics of interest to both the project and the community representatives.
  • Engaging with standards bodies regarding contribution to relevant standards.
  • Engaging with commercial organisations to facilitate the development (post-project) of production-quality implementations of PERICLES components and their integration into commercial systems, e.g storage appliances.