Designing and Building a Deposit System DIAS version 1'0

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Designing and Building a Deposit System(DIAS
version 1.0)

• H. Verhoeven, IT Architect
• IBM Global Services

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Topics

• OAIS Reference Model and IBMs Solution
• Development Process
• Software Architecture
• Component Model (Functional View)
• Operational Model (Physical View)
• System Hardware
• Future Plans

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OAIS Reference Modelfor an Open Archival
Information System
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IBMs OAIS Solution
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Development Process

• IBM Global Services Method
• Work Product Based
• Configurable Process
• Hardware
• Physical Installation, Implementation
• Software
• Custom Components (Java Development, OO Design,
  Build, Test)
• Standard Components (Package Implementation)
• Iterative, Incremental, Component Based
  Development
• Phased Approach (Phases with Iterations)

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Application Development Phases
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Software Architecture (Client to Services)
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Component Model
L4
L3
L2
L1
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OAIS Business Objects

• SIP (Submission Information Package)
• Archive of directory trees, zip formatted (pkzip
  2.50 lt format ltpkzip 5.0)
• 2GB limit on zip-entry
• Table of Contents (TOC-file), in XML format
• Metadata
• Index Classes and Attributes in the Data Model
• AIP (Archival Information Package)
• Archive of directory trees, GNU-tar (version
  1.13) formatted
• DIP (Dissemination Information Package)
• Similar to SIP
• Supports other archive formats (tar, zip, ...)

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Data Model
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Physical Operational Model
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System Hardware
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Achieved Result
The DIAS v1.0 Deposit System is a generic,
flexible and scalable realisation of the OAIS
Reference Model and provides a solid starting
point for the National Library of the Netherlands
to store, make available and preserve electronic
publications today and in the future.
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Future Plans

• Implement Preservation Layer Model and
  Preservation Layer Management
• Archiving Web Publications
• Software Upgrade to IBM Content Manager 8.1
• Internet Access (Authentication, Authorization)

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The IBM/KB OAIS Deposit LibraryDIAS Digital
Information Archiving System