2.3 OAIS HIGH-LEVEL EXTERNAL INTERACTIONS - Revision history

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	The following subsections present a high-level view of the interaction between the entities identified in the OAIS environment. Figure 2-4 is a data flow diagram that represents the operational OAIS Archive external data flows. This diagram concentrates on the flow of information among Producers, Consumers and the OAIS and does not include flows that involve Management. These flows are dealt with further in section 4.		The following subsections present a high-level view of the interaction between the entities identified in the OAIS environment. Figure 2-4 is a data flow diagram that represents the operational OAIS Archive external data flows. This diagram concentrates on the flow of information among Producers, Consumers and the OAIS and does not include flows that involve Management. These flows are dealt with further in section 4.

			[[File:Figure 2-4 OAIS Archive External Data 650x0m2.jpg\|500px]]

	'''Figure 2-4: OAIS Archive External Data'''		'''Figure 2-4: OAIS Archive External Data'''

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			{{:OAISheader}}

	The following subsections present a high-level view of the interaction between the entities identified in the OAIS environment. Figure 2-4 is a data flow diagram that represents the operational OAIS Archive external data flows. This diagram concentrates on the flow of information among Producers, Consumers and the OAIS and does not include flows that involve Management. These flows are dealt with further in section 4.		The following subsections present a high-level view of the interaction between the entities identified in the OAIS environment. Figure 2-4 is a data flow diagram that represents the operational OAIS Archive external data flows. This diagram concentrates on the flow of information among Producers, Consumers and the OAIS and does not include flows that involve Management. These flows are dealt with further in section 4.

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	[[2.3.3 CONSUMER INTERACTION]]		[[2.3.3 CONSUMER INTERACTION]]

			'''--Please retain original text above for reference. Propose amendments or additions below this line or respond using the Discussion tab above--'''

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	[[2.3.1 MANAGEMENT INTERACTION]]		[[2.3.1 MANAGEMENT INTERACTION]]

	[[2.3.2 PRODUCER INTERACTION]]		[[2.3.2 PRODUCER INTERACTION]]

	[[2.3.3 CONSUMER INTERACTION]]		[[2.3.3 CONSUMER INTERACTION]]

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	'''Figure 2-4: OAIS Archive External Data'''		'''Figure 2-4: OAIS Archive External Data'''

	~~***~~[[2.3.1 MANAGEMENT INTERACTION]]		[[2.3.1 MANAGEMENT INTERACTION]]
	~~***~~[[2.3.2 PRODUCER INTERACTION]]		[[2.3.2 PRODUCER INTERACTION]]
	~~***~~[[2.3.3 CONSUMER INTERACTION]]		[[2.3.3 CONSUMER INTERACTION]]

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	'''Figure 2-4: OAIS Archive External Data'''		'''Figure 2-4: OAIS Archive External Data'''

	***[[2.3.1 MANAGEMENT INTERACTION]]		***[[2.3.1 MANAGEMENT INTERACTION]]
	***[[2.3.2 PRODUCER INTERACTION]]		***[[2.3.2 PRODUCER INTERACTION]]
	***[[2.3.3 CONSUMER INTERACTION]]		***[[2.3.3 CONSUMER INTERACTION]]

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	'''Figure 2-4: OAIS Archive External Data'''		'''Figure 2-4: OAIS Archive External Data'''
			***[[2.3.1 MANAGEMENT INTERACTION]]
			***[[2.3.2 PRODUCER INTERACTION]]
			***[[2.3.3 CONSUMER INTERACTION]]

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	'''Figure 2-4: OAIS Archive External Data'''		'''Figure 2-4: OAIS Archive External Data'''


	~~== 2.3.1 MANAGEMENT INTERACTION ==~~


	Management provides the OAIS with its charter and scope. The charter may be developed by the Archive, but it is important that Management formally endorse Archive activities. The scope determines the breadth of both the Producer and Consumer groups served by the Archive.

	~~Some examples of typical interactions between the OAIS and Management include:~~

	~~– Management is often the primary source of funding for an OAIS and may provide guidelines for resource utilization (personnel, equipment, facilities).~~

	– Management will generally conduct some regular review process to evaluate the OAIS performance and progress toward Long Term goals, and assess the risks to which the OAIS and its holdings are exposed.

	~~– Management determines, or at least endorses, pricing policies, as applicable, for~~
	~~OAIS services.~~

	~~– Management participates in conflict resolution involving Producers, Consumers and~~
	~~OAIS internal administration.~~

	Effective Management should also provide support for the OAIS by establishing procedures that assure OAIS utilization within its sphere of influence. For example, management policies should require that all funded activities within its sphere of influence submit data products to the Archive and also adhere to Archive standards and procedures.



	~~== 2.3.2 PRODUCER INTERACTION ==~~


	The first contact between the OAIS and the Producer is a request that the OAIS preserve the data products created by the Producer. This contact may be initiated by the OAIS, the Producer or Management. The Producer establishes a Submission Agreement with the OAIS, which identifies the SIPs to be submitted and may span any length of time for this submission. Some '''Submission Agreements''' will reflect a mandatory requirement to provide information to the OAIS, while others will reflect a voluntary offering of information and others may reflect any payments which may be involved. Even in the case where no formal Submission Agreement exists such as in the archiving of many World Wide Web sites, a virtual Submission Agreement may exist specifying the file formats and the general subject matter the OAIS will accept.

	Within the Submission Agreement, one or more '''Data Submission Sessions''' are specified. There may be significant time gaps between the Data Submission Sessions. A Data Submission Session will contain one or more SIPs delivered as a set of media or via a single telecommunications session. The Data Submission Session content is based on a data model negotiated between the OAIS and the Producer in the Submission Agreement. This data model identifies the logical components of the SIP (e.g., the Content Data Objects, Representation Information, PDI, Packaging Information, and Descriptive Information) that are to be provided and how (and whether) they are represented in each Data Submission Session. All data deliveries within a Submission Agreement are recognized as belonging to that Submission Agreement and will generally have a consistent data model, which is specified in the Submission Agreement. For example, a Data Submission Session may consist of a set of Content Information corresponding to a set of observations, which are carried by a set of files on a CD-ROM. The Preservation Description Information is in this example split between two other files. All of these files need Representation Information which must be provided in some way. The CD-ROM and its directory/file structure are the Packaging Information, which provides encapsulation and identification of the Content Information and PDI in the Data Submission Session. The Submission Agreement indicates how the Representation Information for each file is to be provided, how the CD-ROM is to be recognized, how the Packaging Information will be used to identify and encapsulate the SIP Content Information and PDI, and how frequently Data Submission Sessions (e.g., one per month for two years) will occur. It also gives other needed information such as access restrictions to the data and enforcement requirements.

	Each SIP in a Data Submission Session is expected to meet minimum OAIS requirements for completeness. However, in some cases multiple SIPs may need to be received before an acceptable AIP can be formed and fully ingested within the OAIS. In other cases, a single SIP may contain data to be included in many AIPs. A Submission Agreement also includes, or references, the procedures and protocols by which an OAIS will either verify the arrival and completeness of a Data Submission Session with the Producer or question the Producer on the contents of the Data Submission Session.


	~~== 2.3.3 CONSUMER INTERACTION ==~~

	There are many types of interactions between the Consumer and the OAIS. These interactions include questions to a help desk, requests for literature, catalog searches, orders and order status requests. The ordering process is of special interest to the OAIS Reference Model, since it deals with the flow of Archive holdings between the OAIS and the Consumer.

	The Consumer establishes an '''Order Agreement''' with the OAIS for information. This information may currently exist in the Archive or be expected to be ingested in the future. The Order Agreement may span any length of time, and under it one or more '''Data Dissemination Sessions''' may take place. A Data Dissemination Session may involve the transfer of a set of media or a single telecommunications session. The Order Agreement identifies one or more AIPs of interest, how those AIPs are to be transformed and mapped into Dissemination Information Packages (DIPs) and how those DIPs will be packaged in a Data Dissemination Session. The Order Agreement will also specify other needed information such as delivery information (e.g., name or mailing address), rights information (e.g., usage restrictions, authorized Consumers, or license fees) and any pricing agreements as applicable. There are two common order types initiated by Consumers: the '''Event Based Order''' and the '''Adhoc Order'''.

	In the case of an Adhoc Order, the Consumer establishes an Order Agreement with the OAIS for information available from the Archive. If the Consumer does not know a priori what specific holdings of the OAIS are of interest, the Consumer will establish a '''Search Session''' with the OAIS. During this Search Session the Consumer will use the OAIS '''Finding Aids''' that operate on '''Descriptive Information''', or in some cases on the AIPs themselves, to identify and investigate potential holdings of interest. This may be accomplished by the submission of queries and the return of query responses, e.g., result sets, to the Consumer. This searching process tends to be iterative, with a Consumer first identifying broad criteria and then refining these criteria based on previous search results. Once the Consumer identifies the OAIS AIPs of interest, the Consumer may provide an Order Agreement that documents the identifiers of the AIPs the Consumer wishes to acquire, and how the DIPs will be acquired from the OAIS. If the AIPs are available, an Adhoc Order will be placed. However, if the AIPs desired are not yet available, an Event Based Order may be placed.

	In the case of an Event Based Order, the Consumer establishes an Order Agreement with the OAIS for information expected to be received on the basis of some triggering event. This event may be periodic, such as a monthly distribution of any AIPs ingested by the OAIS from a specific Producer, or it may be a unique event such as the ingestion, or creation, of a specific AIP. The Order Agreement will also specify other needed information such as the trigger event for new Data Dissemination Sessions and the criteria for selecting the OAIS holdings to be included in each new Data Dissemination Session.

	The Order Agreement does not have to be a formal document. In general an OAIS will have a general pricing policy and maintain an information base of the electronic and physical mailing addresses of its users. In this case, the process of developing an Order Agreement may be no more than the completion of a World Wide Web form to specify the AIPs of interest.

	~~'''--Please retain original text above for reference. Comment or propose amendments or additions below this line--'''~~

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	The Order Agreement does not have to be a formal document. In general an OAIS will have a general pricing policy and maintain an information base of the electronic and physical mailing addresses of its users. In this case, the process of developing an Order Agreement may be no more than the completion of a World Wide Web form to specify the AIPs of interest.		The Order Agreement does not have to be a formal document. In general an OAIS will have a general pricing policy and maintain an information base of the electronic and physical mailing addresses of its users. In this case, the process of developing an Order Agreement may be no more than the completion of a World Wide Web form to specify the AIPs of interest.

			'''--Please retain original text above for reference. Comment or propose amendments or additions below this line--'''

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	'''Figure 2-4: OAIS Archive External Data'''		'''Figure 2-4: OAIS Archive External Data'''

	2.3.1 MANAGEMENT INTERACTION
			== 2.3.1 MANAGEMENT INTERACTION ==


	Management provides the OAIS with its charter and scope. The charter may be developed by the Archive, but it is important that Management formally endorse Archive activities. The scope determines the breadth of both the Producer and Consumer groups served by the Archive.		Management provides the OAIS with its charter and scope. The charter may be developed by the Archive, but it is important that Management formally endorse Archive activities. The scope determines the breadth of both the Producer and Consumer groups served by the Archive.

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	The Consumer establishes an '''Order Agreement''' with the OAIS for information. This information may currently exist in the Archive or be expected to be ingested in the future. The Order Agreement may span any length of time, and under it one or more '''Data Dissemination Sessions''' may take place. A Data Dissemination Session may involve the transfer of a set of media or a single telecommunications session. The Order Agreement identifies one or more AIPs of interest, how those AIPs are to be transformed and mapped into Dissemination Information Packages (DIPs) and how those DIPs will be packaged in a Data Dissemination Session. The Order Agreement will also specify other needed information such as delivery information (e.g., name or mailing address), rights information (e.g., usage restrictions, authorized Consumers, or license fees) and any pricing agreements as applicable. There are two common order types initiated by Consumers: the '''Event Based Order''' and the '''Adhoc Order'''.		The Consumer establishes an '''Order Agreement''' with the OAIS for information. This information may currently exist in the Archive or be expected to be ingested in the future. The Order Agreement may span any length of time, and under it one or more '''Data Dissemination Sessions''' may take place. A Data Dissemination Session may involve the transfer of a set of media or a single telecommunications session. The Order Agreement identifies one or more AIPs of interest, how those AIPs are to be transformed and mapped into Dissemination Information Packages (DIPs) and how those DIPs will be packaged in a Data Dissemination Session. The Order Agreement will also specify other needed information such as delivery information (e.g., name or mailing address), rights information (e.g., usage restrictions, authorized Consumers, or license fees) and any pricing agreements as applicable. There are two common order types initiated by Consumers: the '''Event Based Order''' and the '''Adhoc Order'''.

			In the case of an Adhoc Order, the Consumer establishes an Order Agreement with the OAIS for information available from the Archive. If the Consumer does not know a priori what specific holdings of the OAIS are of interest, the Consumer will establish a '''Search Session''' with the OAIS. During this Search Session the Consumer will use the OAIS '''Finding Aids''' that operate on '''Descriptive Information''', or in some cases on the AIPs themselves, to identify and investigate potential holdings of interest. This may be accomplished by the submission of queries and the return of query responses, e.g., result sets, to the Consumer. This searching process tends to be iterative, with a Consumer first identifying broad criteria and then refining these criteria based on previous search results. Once the Consumer identifies the OAIS AIPs of interest, the Consumer may provide an Order Agreement that documents the identifiers of the AIPs the Consumer wishes to acquire, and how the DIPs will be acquired from the OAIS. If the AIPs are available, an Adhoc Order will be placed. However, if the AIPs desired are not yet available, an Event Based Order may be placed.

			In the case of an Event Based Order, the Consumer establishes an Order Agreement with the OAIS for information expected to be received on the basis of some triggering event. This event may be periodic, such as a monthly distribution of any AIPs ingested by the OAIS from a specific Producer, or it may be a unique event such as the ingestion, or creation, of a specific AIP. The Order Agreement will also specify other needed information such as the trigger event for new Data Dissemination Sessions and the criteria for selecting the OAIS holdings to be included in each new Data Dissemination Session.

			The Order Agreement does not have to be a formal document. In general an OAIS will have a general pricing policy and maintain an information base of the electronic and physical mailing addresses of its users. In this case, the process of developing an Order Agreement may be no more than the completion of a World Wide Web form to specify the AIPs of interest.