[No Archive Is An Island] September 18th 2008What is theMediapedia? Douglas Elford, Digital Preservation National Library of Australia
Issues• Identification of various media types for assisting with collection planning, assessment, documentation, infrastructure and preservation• Rapid staffing and technological changes resulting in loss of business knowledge, within an organisation or external communities, about these various media formats for making risk management evaluations or preservation decisions about access to the content
Current Options Despite these issues most collecting organisations still need to collect content on physical media• Specialist staff, organisations or third party services• Specific interest web sites, although potentially non on-going• Wikipedia, although one needs to know initially what one is looking for. Its currency, accuracy, level of trust and the longevity of the data is again potentially fraught
ProblemCollecting Organisations:• It would be advantageous to be able to easily identify physical media carriers being offered to collecting organisations without specialist knowledge• Is it considered an obsolete media or is there an available mechanism which can provide access to its content• Physical media can be quite fragile, especially digital media, with data loss due to a number of factors including media decay (environmental or chemical), data corruption, etc. which then informs evaluation or preservation decisions• because it is not in a dynamic medium, you do not know until you try to access the content
MediapediaWhat Do We Need?• a curated repository for business knowledge and ‘trusted’ sources• enable the identification with a low level of audience knowledge• ability to discover deeper knowledge within or out to external sources• cater for both general and specialists audiences• contains additional information about dependencies (such as hardware, connectors, interfaces, software, etc.) and access paths for usage which are not currently represented in other sources such as Wikipedia• a web based service which can be integrated internally or externally to other services.
Mediapedia - Classification Schema Genre • Recording of the media genre (category) Data, Microform, Moving Image, Genre Sound, Still Image & Unmediated Process • Recording of the type of process used to record information e.g. magnetic, magnetic/optical, Process mechanical, optical, photo chemical, photo mechanical, photo digital, solid state, etc. Carriers Carrier/Housing • Recording of the type of carrier, and + (Enclosure) optionally its enclosure. e.g. tape reel, disc, disc / disk cartridge, cylinder, paper, etc. Name • Recording common names of the physical media carrier. Name
Classification - MICROFORM - - STILL IMAGE - – aperture card – cartridge Process – cassette – magnetic – microfiche – filmstrip – magnetic/optical – microfiche cassette – filmstrip cartridge – mechanical – microfilm cartridge – film negative – optical – microfilm cassette – film positive/transparency – paper – microfilm reel – flash memory card – photo chemical – microfilm slip – flash memory stick – photo mechanical – glass negative – photo digital – microopaque – mounted slide – solid state – overhead transparency - MOVING IMAGE -____________________ – film cartridge – paper print – plastic print Carriers (by Genre) – film cassette – stereograph card – filmslip - DATA - – stereograph reel – filmstrip – paper card – filmstrip cartridge – paper tape - UNMEDIATED - – film reel – disc – book – tape cartridge – disc cartridge – card – tape cassette – disc pack – flipchart – video disc – disk cartridge – microscope slide – tape reel – disk sleeved – paper – flash memory card – sheet - SOUND - – flash memory stick – cartridge – online – cassette – ROM cartridge – cylinder – tape cartridge – disc – tape cassette – roll – tape reel – tape reel – audio film reel (Complete listing available at: http://www.nla.gov.au/mediapedia/)
Mediapedia Prototype These prototype screenshots illustrate:• the Conservation Assessment statement to enable soft risk assessment policy during collection assessment• some of the potential multiple relationships that can be created to enable the development and management of access paths to enable accessing content on physical media.• for example the Environment Examples tab indicates which physical devices [NLA in this example] currently can accommodate that particular media. This is displayed via a relationship to an on-line Access, Configuration & Environment database - Configulator.
Mediapedia Prototype - Sound Form View
Mediapedia Prototype - Sound Form View - Environmental Specifications
Mediapedia Prototype - Sound Form View – Materials: Tape Variants
Mediapedia Prototype - Data Form View
Mediapedia Prototype - Data Form View – Media variants
Mediapedia Prototype - Data Form View – Access Environment Specs
Mediapedia – Other Views List View Lightbox View
Mediapedia - Search!
Community ModelInternal • Record business knowledge • Allow media identification for collection assessment • Assist in the identification of media when managing collections in order to maintain access to the content • Assist in the identification of media when managing associated information technology infrastructure and associated dependencies for their lifecycle managementExternal • Share information and knowledge with others who also have a similar needs • Provide information that is freely accessible and available to others for their access and re-use • Develop a community of shared ‘trusted’ knowledge • Capture and recording of knowledge about physical media, and its preservation, whilst it is still available • Collaborate on conservation options for preservation and access to various physical media types.
Community ProposalInternal • Record business knowledge • Allow media identification for collection assessment • Assist in the identification of media when managing collections in order to maintain access to the content • Assist in the identification of media when managing associated information technology infrastructure and associated dependencies for their lifecycle managementExternal • Share information and knowledge with others who also have a similar needs • Provide information that is freely accessible and available to others for their access and re-use • Develop a community of shared ‘trusted’ knowledge • Capture and recording of knowledge about physical media, and its preservation, whilst it is still available • Collaborate on conservation options for preservation and access to various physical media types.
MediapediaContact: firstname.lastname@example.orgMediapedia information available at:http://www.nla.gov.au/mediapedia/Other web projects:Prometheus Digital Preservation Workbench on SourceForge:http://prometheus-digi.sourceforge.net/ A Digital Preservation SkunkWorks Project