technology from seed José Barateiro* Gonçalo Antunes José Borbinha Aligning OAIS with the Enterprise Architecture 8 th European Conference on Digital Archiving, 2010 Geneva, Switzerland
Outline technology from seed • Digital Preservation as a Problem • Context • The Enterprise Architecture Perspective • Zachman Framework • TOGAF • Reference Architecture • Shaman RA • OAIS Reference Model • Modelling OAIS • Conclusions Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa Aligning OAIS with the Enterprise Architecture
technology Digital Preservation as a Problem (1/2) from seed Generic and common requirements: • Integrity: Effective preservation requires that the informational content of objects remains unchanged through its lifetime. • Reliability: A copy (or representation) of any preserved object must survive over its system’s lifetime. • Authenticity Assurance: A future consumer may require the accessed information to be trustworthy. Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa Aligning OAIS with the Enterprise Architecture
technology Digital Preservation as a Problem (2/2) from seed • Provenance: A future consumer may require information concerning the origins of the object. • Dealing with Obsolescence: Digital objects should be able to be exploited independently of any technological context (ideally…). • Scalability: Digital preservation systems might be required to face technological evolution through the addition of new components. • Heterogeneity: Digital preservation system’s components should be heterogeneous due to technology disruption. Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa Aligning OAIS with the Enterprise Architecture
technology Approaching Problems from seed Systems Enterprise Risk Engineering Architecture Management Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa Aligning OAIS with the Enterprise Architecture
technology Context from seed (http://grito.intraneia.pt) – National project – Exclusive storage clusters (dedicated to digital preservation) – Extended storage clusters (using surplus resources of computing clusters) SHAMAN - Sustaining Heritage Access through Multivalent ArchiviNg (http://shaman-ip.eu/shaman) – European project – Three domains of focus: memory institutions, engineering and e-Science – Strong focus on authenticity and integrity – Definition of frameworks and architectures for digital preservation Common ground: use of data grids (massive data sets, file management, user management, networking etc.) Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology Reference Architecture – The concept from seed A reference architecture presents a way of recording a specific body of knowledge, with the purpose of making it available for further practical reuse. According to the ANSI/IEEE Std. 1471-2000: architecture is ” the fundamental organization of a system, embodied in its components, their relationships to each other and the environment, and the principles governing its design and evolution ” Therefore, a reference architecture for digital preservation must provide a way to capture the knowledge in the domain, so that it can be instantiated in concrete architectures for real system implementations! Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology SHAMAN RA from seed Initial global view (1/2) «reference model» OAIS guided by Architecture considers accounts for «reference architecture» «framework» SHAMAN depends Viewpoints derived «references» «references» Input Related Work «architecture» Domains + Motivation and Goals + Relevant Specifications + Requirements + Relevant Standards «architecture» + Relevant Technologies M emory «architecture» e-Science «architecture» Industrial constrained by constrained by constrained by «system » Im plementations «system » «system» «system» M emory Industrial e-Science accounts for use Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology SHAMAN RA from seed Initial global view (22) «reference model» OAIS Generic focus (a model based on generic requirements and guided by assumptions…). Architecture considers accounts for «reference architecture» «framework» depends SHAMAN Viewpoints derived «references» «references» Input Related Work «architecture» Domains + Motivation and Goals + Relevant Specifications + Requirements + Relevant Standards «architecture» + Relevant T echnologies Memory «architecture» e-Science «architecture» Industrial • SOA… • The SHAMAN • TRAC DoW constrained by constrained by constrained by criteria… «system» • The initial work… Implementations • … • … «system» «system» «system» Mem ory Industrial e-Science Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa accounts for use
technology SHAMAN RA from seed Information Lifecycle (1/2) Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology SHAMAN RA from seed Information Lifecycle (2/2) The context of the business The interfaces of the digital preservation system The digital preservation system Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
From the lifecycle context technology from seed A taxonomy of vulnerabilities and threats to digital preservation (1/2) Software Faults Process Software Obsolescence Media Faults Data Media Obsolescence Vulnerabilities Hardware Faults Hardware Obsolescence Communication Faults Infrastructure Network Service Failures Natural Disasters Human Operational Errors Disasters External Attacks Attacks Internal Attacks Threats Organizational Failures Economic Failures Management Legal Requirements Stakeholders’ Requirements Business Requirements Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
From the lifecycle context technology from seed A taxonomy of vulnerabilities and threats to digital preservation (2/2) Software Faults T . . Process Software Obsolescence T . . Media Faults . . T Data Media Obsolescence . . T Vulnerabilities Hardware Faults . . T Hardware Obsolescence o . T Communication Faults . c T Infrastructure Network Service Failures T o . Natural Disasters . . C Human Operational Errors Disasters t O . External Attacks t o C Attacks Internal Attacks t O c Threats Organizational Failures . O . Economic Failures . O c Management Legal Requirements . . C Stakeholders’ Requirements . o C Business Requirements Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology Technology + Organization + Context from seed = Enterprise Architecture Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
http://www.zachmaninternational.com/index.php/the-zachman- technology from seed framework Technology +Organization “The Zachman Framework is not a methodology for creating the +Context implementation (an instantiation) of the object. The Zachman =Enterprise Architecture Framework is the ontology for describing the Enterprise. The Framework (ontology) is a STRUCTURE whereas a methodology is a PROCESS. “ Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology TOGAF - The Open Group Framework from seed Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology TOGAF overview from seed Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology The SHAMAN Reference Architecture from seed Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology The SHAMAN Reference Architecture from seed he SHAMAN Reference Architecture Part 1 – Framework , which describes the architectural framework and respective viewpoints; he SHAMAN Reference Architecture Part 2 – Process , which describes the process for the development of preservation architectures derived from the Reference Architecture; he SHAMAN Reference Architecture Part 3 – Foundations , which describes the foundations of this work and provides references for the instantiation of concrete architectures; he SHAMAN Reference Architecture Part 4 – Glossary , which contains definitions for the main terms used in this Reference Architecture . Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology Viewpoint Framework from seed Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
technology Structural View from seed Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
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