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target="_blank" rel="nofollow" href="#u2f09e6fc-5895-53e6-b4e9-b622dd26341b">Chapter 4 explains the problems of Big Data management and archiving. This technology represents the evolutionary explosion of digital data and documents in all fields of activity, as well as the frantic pace of their production. The challenge is to demonstrate the need to restructure the processes and methods of archiving data characterized by large volume, variety and velocity. A selection of the main tools and technologies of Big Data is presented, and particular attention is paid to blockchain technology as a data traceability technology that, coupled with preservation standards, could represent the future of digital archiving in the era of Big data.

      1 1 Theory developed by the French archivist and historian Yves Pérotin in 1961. This model gained legal recognition in France with the adoption of the law of January 3, 1979 on archives.

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      Digital Archives: Elements of Definition

      1.1. Key concepts of digital archives

      Before talking about digital archives, it is appropriate to present in the foreword some elements of definition relating to key concepts related to archiving in general, namely, archives, archival tools and procedures for sorting, transfer and disposal, among other things.

      1.1.1. Archives

      It has now been more than 70 years since the International Council on Archives (ICA), representing archival professionals from around the world, was founded, and efforts are being made to develop and implement both a body of global archival legislation and archival training and research programs. Among the first formal definitions, we cite that of ICA:

      Archives are the documentary by-product of human activity retained for their long-term value. They are contemporary records created by individuals and organizations, as they go about their business and therefore provide a direct window on past events. They can come in a wide range of formats including written, photographic, moving image, sound, digital and analogue. Archives are held by public and private organizations and individuals around the world. [ICA 16]

      Archives can therefore be public, coming from the activities of the State, public institutions (industrial and commercial [EPIC] or administrative [EPA]) and any other legal entity under public law or legal persons under private law managing a public service (financed by a public fund for a general interest).

      They can also be private, coming from natural persons or persons with a private status such as families, unions, political parties and associations.

      1.1.2. Archive management

      Records management today is the basis for all actions related to good governance, respect for the law and the collective memory of humanity, the rights of citizens to access information and administrative transparency [ICA 16].

      Indeed, in all public or private organizations, information recorded on various media is created and/or received “involuntarily” in the course of people’s activities. Over time, this information accumulates and increasingly hinders work, requiring intervention. What should be retained? Why keep archives? What is their purpose? For how long? These are in addition to many other questions related to the value of these documents, distribution, access rights and places of conservation, among other things.

      1.1.2.1. Conservation objects

      A priori all administrative documents are concerned by the conservation for different periods according to their nature and their value, which could be administrative, legal or historical. A specific retention period is therefore assigned to each document.

      1.1.2.2. Conservation objectives and utility

      In other words, archives are evidential documents that allow the continuity of administrative services, historical research and economic, social and cultural development.

      1.1.2.3. Shelf life

      As noted above, each document is assigned a retention period. This retention period represents the continuous process that a document must go through from its creation to its final disposition, which may be destruction or deposit in an archive for its historical value. Each retention period varies according to the informational, administrative or legal value of the document. Archives are therefore successively called “current”, “intermediate” and then “permanent”, which is known as the lifecycle of archives or the theory of three ages [PER 61]:

       – Current or active archives represent documents that are regularly used in day-to-day work and are generally used to manage ongoing business. They are kept in offices close to the users;

       – Intermediate or semi-active archives represent documents that no longer have an immediate and daily use, but which must be saved because of a possible reopening or legal prescriptions. Since the frequency of use is low, these archives can be moved to another location for consultation if necessary or entrusted to an archive service that manages access to them on demand;

       – Permanent or historical archives are those archives that are no longer useful for the conduct of administrative activity and which are of historical or patrimonial interest. These archives must be kept for an unlimited period of time. It should be remembered that a very large number of archives that are not intended to enter the active age must be disposed of after agreement from the archive service.

      Preserving archives also depends on the location, nature and value of the documents. It is a matter of keeping a trace of all documents at every stage of their lives. Three principles are to be respected in this sense:

       – the provenance of the collection, which consists of not mixing documents;

       – the order of the collection, which consists of keeping the documents according to the classification made by the original organization;

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