Duranti 1998, 167Electronic records are not always copies, because a copy is by definition a reproduction of an original, a draft or another copy (the first copy made being always a reproduction of a document in a different status of transmission) therefore, electronic records having a different status of transmission must be created for copies to exist. It is more appropriate to say that electronic records are all made as drafts and received as originals, in consideration of the fact that the records received contain elements automatically added by the system which are not included in the documents sent, and which make them complete and effective. Suderman 2001Records in the electronic environment have unique characteristics. InterPARES 2002, 7Strictly speaking, it is not possible to preserve an electronic record.ĭurability lifespan maintenance ease of editing, copying, erasure, and reformatting (manipulability) ease of manipulation, including the difficulty of tracing manipulation need for supporting documentation to describe the contents, arrangement, codes, and technical characteristics need for specialized personnel for the processing and maintenance of the records, introducing a new player in the normal clique of archivist, creator, and user.
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It is always necessary to retrieve from storage the binary digits that make up the record and process them through some software for delivery or presentation. Digital Preservation Testbed 2003, 13Digital records are not simply the 21st century equivalent of traditional paper records. They have other properties, characteristics and applications. However, both digital and paper records must meet the same legal requirements. In practice, this requires a different approach. ¶ Digital records are not tangible objects like a book or a magazine, but a combination of hardware, software and computer files. This combination is necessary to be able to use the documents or examine them. In the context of Testbed we looked specifically at text documents, databases, email messages and spreadsheets.
Multimedia documents, digital video and sound can also be digital records, but these remained outside the scope of this study.
¶ An important difference compared to paper records is the greater loss of information that can occur even while the records are being used, or afterwards when the records are being maintained. After all, hard discs and computers are replaced regularly and there are few barriers to destroying computer files. A single click on the 'delete' button and a record disappears without leaving a trace.Each of the derailleurs of a SRAM eTap system has its own rechargeable battery that lasts for over 1,000km (625 miles) of typical riding. A green indicator light on each component turns on after each shift. Once the battery charge is below 25%, that light turns red and below 15% the light starts to flash red. The CR2032 batteries in the shifters will need changing on average about once every two years, and there's a similar LED system to tell you how much juice is remaining.Ĭonstant pressure on the button can eventually drain the battery of an electronic shift system.
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