Towards a Common Vision for

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Oct 19, 2013 (3 years and 9 months ago)

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Towards a Common Vision for
Testing Environments

Dr Ashley Hunter

APA Conference 2011, London


APARSEN Test Environments


Collect together a set of
environments

to test the
efficacy of
tools

and
techniques

for digital
preservation against changes in:


Hardware


Software


Environment


Knowledge base of the designated communities



Develop a common ‘shared’ approach to testing


Classification


Use classification schemes to define the known Test
Environment landscape



Classify Test Cases by:


Object Type (Information or Digital?)


Threat to Access and Re
-
Use


Preservation Technique (Strategy)



Identify the GAPs in our coverage

Test Environments


In
-
house Digital Preservation Test Environments


CASPAR






Safety Deposit Box (SDB)



SHAMAN


Plato




External Test Environments



Relative

simple to ‘rate’ additional environments


Identified Techniques


Transformation



Emulation




RepInfo

Network



Other Approaches?

User Scenarios


These define the Digital Preservation test cases used
to evaluate each of the test environments



Initially based on contributions from APARSEN
Partners



Seek contributions from other active projects, or
organisations, or individuals to expand our horizons!


User Scenario Template

Example User Scenario


Analysis of User Scenarios


Develop a Test Environment capability matrix


Extract unique combinations of information object, threat,
strategy (Test Cases)


Rate the ability of each Test Environment to each Test Case


Plot the matrix



Analysis also reveals interesting ‘hidden’ behaviours


Images for Machine Vision (non human) interpretation


Audio files containing data other than sound (container)


Object

Threat

Strategy

SDB

TE #2

TE ..n

Image (*.tif)

Long

term cost of
storage

Migrate to .JP2 using tool:
ImageMagick

WordPerfect
(*.
wp
)

Cannot read
document

Emulate using
Dioscuri

3D CAD
(*.prt)

Cannot access

CATIAV4

files

Migrate using

LOTAR
techniques

Error

flag
image (*.?)

Image

is meaning
-
less without context

Define usage

by a
dding more
Representation

Information

Database

(*.mdb)

Cannot access DB
file format

Use SIARD Suite to
normalise

to the .SIARD format

Test Environment Landscape


Define

current capability space


See this landscape

change over time


Identifies

areas for further analysis and research

APARSEN needs YOU !


Challenge us .... Send us your User Scenarios


Template


Example


email to:
ashley.hunter@tessella.com



We’ll incorporate your DP scenario into our Digital
Preservation capability ‘Landscape’



New Test Environments Welcome!

Thank you for your attention

ashley.hunter@tessella.com


http://www.digital
-
preservation.com