Access (0.2)

Step	Implementation	Notes
General procedures
12.1 Receive DIP order request (UC-6.2, UC-6.4)	Consumer requests DIP verbally or in writing (eg via e-mail).
12.2 Evaluate available resources to respond to request (UC-6.2, UC-6.4, UC-6.5)	Determine whether the scope of the request exceeds available resources.
12.3 Evaluate authority to make request (UC-6.2, UC-6.5)
12.7 Deliver AIP	Go to AD13
Exceptions
12.2 or 12.3 --> Request rejected
12.4 Send notification of request rejection (UC-6.2, UC-6.5)
12.2 or 12.3 --> Delay expected
12.7 Deliver AIP	Go to AD13
12.5 Send notification of request acceptance and estimated delivery time (UC-6.2, UC-6.5)
12.2 or 12.3 --> Billing required
12.6 Generate billing notice (UC-6.7)
Payment not received
Payment received 12.7 Deliver AIP	Go to AD13

Step	Implementation	Notes
General procedures
13.1 Request AIP from Archival Storage (UC-6.6)	Open /home/demo/archivalstorage/ to locate the AIP.
13.2 Check integrity of AIP	USe md5sum to ensure that the file has not been altered since it was placed in archival storage.
13.6 Query database (UC-6.6)	Use the search or browse functions in Qubit to locate information about digital objects.
13.7 Receive query result(s) and/or report(s) (UC-6.6)	Qubit will return a list of search/browse results.
13.9 Assemble DIP	Upload digital object to Qubit.
13.10 Send DIP	Provide the user with log-in access to Qubit, which will allow the user to view the digital object along with its descriptive information and to download the digital object if desired.
Exceptions
13.2 --> Integrity check fails
13.3 Request AIP from Archival Storage
13.4 Check integrity of AIP
Pass	Go to 13.9
Fail 13.5 Send notification to recover AIP
Start --> Cached DIP available	The digital object may already have been uploaded to Qubit.
13.8 Retrieve cached DIP	Go to 13.10
Cached DIP is outdated	Go to 13.1	How can you tell if the cached DIP is outdated?

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