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PLANETS Testbed: A Research Environment for Digital Preservation

Learn about the importance of testbeds in digital preservation and the services provided by the PLANETS Testbed. Discover the methodology, software, and components used in the testbed, as well as its role within the PLANETS project and the broader preservation community.

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PLANETS Testbed: A Research Environment for Digital Preservation

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  1. The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual ConferenceLisbon, 5–6 September, 2007 Max Kaiser, Austrian National Librarymax.kaiser@onb.ac.at, http://www.onb.ac.at

  2. ToC • Why do we need Testbeds in Digital Preservation? • What will the PLANETS Testbed deliver? • Role of Testbed within PLANETS • PLANETS Testbed services for Digital Preservation community • Testbed Methodology, Experiment 6-step Process • Testbed Software Application • Testbed Components • User Interface Mock-Up Demonstration • Next Steps Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  3. Why do we need Testbedsin Digital Preservation? • Concern about digital preservation rapidly increased in recent years • Several approaches to digital preservation implemented by various programs and projects • A number of digital preservation tools and services (e.g. for migration and characterization) developed  Need for systematization, benchmarking and evaluation urgent in many fields: • Systematic analysis of current and potential preservation strategies • Evaluation and benchmarking of characterisation and migration tools • Assess the role of emulation tools • … Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  4. Why do we need Testbedsin Digital Preservation? • If we want to • perform scientific research in digital preservation • evaluate preservation approaches in diverse “real life” settings • avoid duplication of work • maximise use of invested resources • we need a dedicated research environment, • that allows the systematic execution of experiments by different institutions • with experiments that • follow a formalized methodology • are reproducible • are fully documented and accessible for further analysis and comparison Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  5. A Testbed for Digital Preservation Definition: “A controlled environment for experimentation and evaluation, with metrics and benchmark content that allow comparison of preservation tools and strategies” Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  6. PLANETS Testbed • Platform for objective evaluation of preservation tools and strategies: • Load content • Perform digital preservation experiments: • Design the experiment, select data and tools, specify resources and evaluation criteria, run the experiment, evaluate results against criteria, compare outcomes • Find support for validation of preservation strategies • Benchmark tools and services • Will consist of • Hardware, data storage, PLANETS software, Testbed application • Benchmark and other content • Will provide services for • The PLANETS project partners • The preservation community • Tool developers and vendors Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  7. Role of Testbed in PLANETS | 1 • Test and validate the technical solutions and approaches developed in PLANETS: • provide a controlled hardware and software environment for testing and evaluating preservation action (migration, emulation) and characterisation tools and services • record experiments data in registries for further analysis and comparison • assist the validation of the effectiveness of different digital preservation plans Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  8. Role of Testbed in PLANETS | 2 • Assess the suitability of the approaches across „real life“ scenarios in various organisations • Analyse applicability of the outcomes of PLANETS in existing workflows and organisational contexts • Evaluate their efficiency in providing practicable solutions for organisations engaged in digital preservation Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  9. Role of PLANETS Testbed in theDigital Preservation Community • In a second phase, the PLANETS Testbed will • Offer services to organisations outside PLANETS: • Support institutions to test preservation tools and services against benchmark content • Assist institutions to validate their preservation plans against their policies & content profiles • Enable developers and third party vendors to submit tools for benchmarking and certification: • Validate the suitability of their tools in preservation workflows Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  10. PLANETS Testbed: Foundations • Build on work undertaken by the Dutch Digital Preservation Testbed and DELOS Testbed Framework • Integration in PLANETS Interoperability Framework • Focus on formalisation of testing process design • Strong focus on comparability and traceability of results Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  11. Main Participants • Austrian National Library • Humanities Advanced Technology and Information Institute at the University of Glasgow (HATII) • Austrian Research Centers (ARC) • National Archives of the Netherlands • British Library • Vienna University of Technology • University of Cologne Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  12. Testbed Methodology • Experiment Process: • Refined to a focused 6-step process that each formal experiment must follow • PLANETS Testbed experiment: consist of a consistent methodology for • Defining its metadata (exploration area, scope, criteria, references etc.) • Selecting or creating a workflow of (orchestrated) preservation services • Evaluating the results against the experiment’s initial goals Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  13. Basic Experiment Properties Definition 1. Define Basic Experiment Properties • Name • Reference to other experiments • Summary • Purpose • Participants • Scope • Type of Tools • Type of Objects • Approach • … Tools and Data Specification 2. Design Experiment • Specify Experiment Type • Migration • Characterisation • Workflow • Specify Tools • Specify Data Resource Specification 3. Specify Resources & Outcomes • Estimate number of output files • Estimate computer resource requirements • Specify benchmark goals for experiment Evaluation Checklist • Automatic approval by system • Based on resource specification and system monitoring • Manual approval by administrator Declaration ofGo / No go 4. Go / No go Start Testbed Experiment Process | 1 Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  14. Experiment Workflow 5. Run Experiment Experiment Results • Experiments executed as BPEL workflows • Processed by workflow execution engine of the Interoperability Framework • Presentation of status report Experiment Evaluation 6. Evaluate Experiment • Presentation of input and output data • Evaluation of benchmark goals Stop Testbed Experiment Process | 2 4. Go / No go Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  15. Testbed System Design • Initial understanding of the required characteristics of PLANETS Testbed derived from the Dutch Preservation Testbed and the DELOS Digital Preservation Cluster • Additional requirements gathered following a clearly structured software design process • Interviews • User Scenarios  ~ 60 Use Cases • Software Requirements • IF Requirements (Authentication Interfaces, Logging, Versioning…) • Perform Experiment, Define Basic Properties, Select A Tool, View Available Services, Handling Stalled Experiments… • Non-functional requirements • Usability, Reliability, Performance, Security, Supportability… • Design and Implementation Plan • High-level design of the Testbed application • Initial breakdown of the system into components Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  16. Testbed Software • Platform-independent system based on Java Enterprise Edition (EE) • Three-tiered system: Handles presentation of user interfaces; logic for dynamically creating content. Based on Java Server Faces and Facelets Provides business logic (core functionality). Based on JavaBeans and JAX web service endpoints Provides data persistency. Uses data registries provided by PLANETS Interoperability Framework Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  17. Testbed Application IF Applications General Experiment Data Services Workflow Designer Administration Tool Service Manager Designer Evaluator Im/Exporter Browser Data Manager Administration Scheduling Approval System Monitoring Client Registry Services Registry Services Testbed Backend Components Interoperability Framework Integrate Configure Use Service Bus Persistence Security/Authentication/ Authorization Monitoring/Logging/Auditing Workflow Execution Engine TB Service Registry Client Service Registry Transaction Manager Work Space Error/Exception Handling Database Layer TB Data Registry Client Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  18. Experiment Designer component | 1 Testbed Application General Experiment Data Services Service Manager Designer Evaluator Im/Exporter Browser Data Manager Administration Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  19. Experiment Designer component | 2 • Guides the user trough design of an experiment • User Interface for steps 1–3 of the experiment process • Define basic properties • Design experiment • Specify resources • Select whether experiment is formal or informal • Select type of experiment • Migration • Characterisation • Emulation • Preservation plan evaluation • Execution of a predefined workflow Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  20. Experiment Designer component | 3 • Interaction with several other Testbed components, most notably the service manager and data manager • Interaction with Service Manager • Browse PLANETS Service Registry • Selection and configuration of (wrapped) tools for Preservation Action (PA) and/or Preservation Characterisation (PC) • „Service“: PA/PC tool exhibiting well-defined functionality through a PLANETS IF compliant web service wrapper • Interaction with Data Manager • Interface for handling data input and output via API for accessing the IF Data Registry Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  21. Experiment Designer component | 4 • Specification of Resources • E.g. number of output files • Specification of Outcomes of an experiment • Will appear at the evaluation stage of experiment • Experiment stored as BPEL file and handed over to Approval component • Additional features: • Loading existing experiments • Viewing of experiments in “passive” mode (read-only) • Commenting on experiments • Re-use and Repeating experiments • Re-use certain aspects of existing experiments, or • Repeat entire experiments with original data Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  22. Experiment Designer component | 5 • Rendering of BPEL workflows • All experiments are executed as BPEL workflows • “Simple” migration and characterisation experiments: • BPEL files are created within Testbed based on templates • Up to three orchestrated services (e.g. characterisation followed by migration followed by characterisation) • Complex workflows are created by using the IF Workflow Designer (or any other BPEL tool) and imported into the Testbed • Component does not process the actual execution of an experiment! • Handled within the PLANETS Interoperability Framework by the Workflow Execution Engine Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  23. Experiment Approval & Scheduling | 1 Testbed Application General Experiment Data Services Service Manager Designer Evaluator Im/Exporter Browser Data Manager Administration Scheduling Approval System Monitoring Client Persistence Testbed Backend Components TB Service Registry Client TB Data Registry Client Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  24. Experiment Approval & Scheduling | 2 • Approval component handles technical approval of experiments by the system and/or the administrator • Makes use of information provided by the experimenter and by the system monitoring component – e.g.: • Number of input files • Estimated number of output files • Current CPU / Memory usage • Threads / Processes • Available Disk Space • Scheduling component allows administrator to • Select a date/time for an experiment to start • Assign a maximum run time • Check progress of experiments • Stop experiments Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  25. Experiment Evaluation | 1 Testbed Application General Experiment Data Services Service Manager Designer Evaluator Im/Exporter Browser Data Manager Administration Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  26. Experiment Evaluation | 2 • View files and results that have been produced during the experiment • Capture experiment conclusions in a structured way • Evaluate results based on the criteria defined during experiment design process Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  27. Experiment Importer / Exporter | 1 Testbed Application General Experiment Data Services Service Manager Designer Evaluator Im/Exporter Browser Data Manager Administration Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  28. Experiment Importer / Exporter | 2 • Create BPEL files from existing experiments and make them available for download • Upload BPEL files to the Testbed • Import whole experiments • Import predefined workflows as part of the experiments design process • Check validity of the BPEL file structure • Check data contained within BPEL files • Download experiment results • Information on experiments in PDF format created on-the-fly • Basic properties, tools used, data used, information about approval process, information about execution of experiment, experiments results, validation of experiment  local demo  WWW demo Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  29. ExperimenterPages Login / Logout Homepage Browse Experiments Browse Services My Experiments New Experiments Browse Data Import Experiments View Experiment Details Experiment Designer View Metadata Run Experiment Annotate Experiment Export Experiment Setting Upload Data Edit Conclusions Evaluate Experiment Results

  30. Conclusions / Next Steps • PLANETS Testbed: controlled environment for experimentation that allows benchmarking of preservation tools, services and strategies • First release to be expected in February / March 2008 • Will be used to experiment with the preservation tools and services developed in PLANETS • In a 2nd Phase (by end 2008) Testbed will offer services to organisations outside PLANETS: • Support institutions to test preservation tools and services against benchmark content • Assist institutions to validate their preservation plans against their policies & content profiles • Main Testbed Instance hosted by University of Glasgow (HATII) • Dedicated hardware with sufficient processing power and storage space Max Kaiser (Austrian National Library, Vienna): The PLANETS Testbed DPE, PLANETS and CASPAR 2nd Annual Conference, Lisbon, 5–6 September, 2007

  31. The PLANETS Testbed Questions? Max Kaiser, Austrian National Librarymax.kaiser@onb.ac.at, http://www.onb.ac.at Thank you!

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