The Ingest entity (220.127.116.11) in an OAIS accepts SIPs, runs the SAQ for it and generates an AIP. Qs may include control totals or cyclical redundancy tests. If the SIP transmission is flawed, Ingest requires a new transmission. Ingest then converts SIPs into AIPs, which could include file format conversion, reorganization, transmission to different media, etc. “An OAIS is not always necessary to keep the information provided to it in the exact format as in the SIP” (4.3.2). At least a unique identifier is added. Effective data extraction/records/files based on the data selection profile defined in the agreement process. Depending on the conditions of the source system, this process can be tedious and can often result in unforeseen costs, especially for extracting data from legacy it-systems. The first mandatory liability, as indicated in the OAIS reference model, is to negotiate and accept the appropriate information from manufacturers. This requires a transmission agreement: the agreement between an OAIS (archive) and the producer, which establishes a data model and all other arrangements necessary for the data transfer meeting. This data model identifies the format/content and logical constructs used by the producer, as well as their reading during each media communication or during a telecommunications session.
The SIP is prepared for deposit and forwarded to the archives that receive it. ESSArch supports transmissions from the same instance and remote instances. SiPs are sent to the OAI archives by producers. Producers are authors, organizations or even programs that provide materials to the OAIS. Some submissions do not have representation information or Preservation Description to meet the strict requirements of the AIP, which means they may not necessarily be PIAs. Ideally, there should be a bidding agreement between the manufacturer and OAIS, setting criteria such as file formats, themes, registration plan, access restrictions, verification minutes, etc. (2.3.2). “A significant iteration may be necessary to agree on the exact information to be transmitted and to put it in forms acceptable to the OAIS” (3.2.1).
They also have to negotiate legal aspects, for example. B the power to migrate content information to new presentation forms (3.2.2). The formats, procedures and results of data transmission must be recorded in the OAIS data transmission guidelines (18.104.22.168). The form of the SIP is generally negotiated between the manufacturer and the OAIS (point 2.2.3). Most SIPs have some content information and PDI files, but it may require multiple submissions to form an AIP. If there are multiple SIPs using the same representation information, it is likely that this IR will only be transmitted once to OAIS (22.214.171.124). SIPs are based on the transmission agreement and associated profiles. The “achievements” resulting from the application of the PAIMAS methodology are agreements on conservation principles, technical tolerances, package structures, processes and regulations.