Methodology and Architecture for Products Long Term Knowledge Preservation : A dynamic preservation approach and a multi-layer architecture
Preserving digital information is one of the objectives of the creation and management of information systems in a company. The long term preservation of information and knowledge becomes crucial in terms of safety and availability. Therefore, our research targets the Long Term Knowledge Retention (LTKR) and preservation in terms of traceability, reusability and security of digital information; and aims at proposing a methodology and an architecture for this purpose. Regarding the objective of this thesis, we have structured our research into four generic parts: Firstly, through analysis of existing works and projects, whose objective is long-term digital preservation, we have synthesized long term preservation common requirements and found out the gaps between existing requirements and the new requirements we have identified. Secondly, existing methodologies and tools for Knowledge Management (KM) are identified. We have extended the CommonKADS methodology in order to build connections between KM and digital preservation. The knowledge objects we have produced in a KM approach are thus better suited as inputs for the digital preservation platform. Then, we have studied the functional features of the existing digital preservation systems, and some main features to support a long term preservation approach. We have extended the Open Archival Information System (OAIS) reference model to establish a preservation platform, by adding specific features in order to fulfill the remaining requirements in the long term preservation area. Finally, we have proposed a dynamic preservation method and an architecture for long term preservation, adapting Service Oriented Application (SOA) and Business Process Management (BPM) concepts. The proposed architecture provides dynamic features and enables us to have better interoperability between the KM approach and digital preservation approach/platform
KEYWORDS: long term preservation ; knowledge management ; digital preservation ; OAIS ; MadPK.