View source for USC-1 Establish a system of control

[[Main Page]] > [[System Requirements]] > [[Use cases]] > USC-1 Establish a system of control

== Establish a system of control ==

These use cases relate to implementing policy decisions in the application.


=== Define system scope ===


=== Establish a system of intellectual control ===

==== Implement an arrangement policy ====

<span id="USC-1.2.1"></span>
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|- valign="top" align="left" style="background:#00008B; color:white"
| colspan="3" | Implement an arrangement policy

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| width="100" rowspan="4" style="background:silver" | Summary
! width="150" | ID number
| width="700" | 1.2.1

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! Overview
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An institution establishes its arrangement policy and customizes the application to implement it.

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! Primary actor
| Institution.

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! Secondary actor
| Administrator.

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| rowspan="5" style="background:silver" | Description
! Preconditions
| n/a

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! Trigger
| n/a

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! Successful outcome
| Application customized so that institution's policy determines options for users when specifying "Level of description".

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! Main scenario
| 
Scenario A:

1. Institution establishes the highest level of arrangement it will employ.
*E.g. Fonds, series, record group established as highest level.

2. Institution establishes the number of levels of arrangement it will employ. 
*E.g. no sub-fonds, no more than three series levels (series, sub- and sub-sub-series).

3. Administrator edits the default "Levels of description" taxonomy shipped with ICA-AtoM, so that drop-down lists show only levels and terms allowed by policy.

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! Exceptions / variations
| 
Scenario B:

Institution changes policy and for a transitional period retains old data values in the application (pending conversion) but allows users to use only new values.
*E.g. application contains descriptions registered as "Record group" but term no longer allowed for new descriptions.

As of version 0.6, ICA-AtoM cannot accommodate this scenario. A term cannot be deleted from a taxonomy if other records are already registered to it. In a future release, it will be possible to make taxonomy terms "inactive" so that data integrity is protected, while drop-down list for on-going data entry show only the preferred terms.

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| rowspan="3" style="background:silver" | Requirements
! Functional requirements
| 
[[FNC-1.2 Establish a system of intellectual control#FNC-1.2.1 | FNC-1.2.1 Describe material at multiple levels of arrangement]]
[[FNC-1.2 Establish a system of intellectual control#FNC-1.2.2 | FNC-1.2.2	Establish the highest level of arrangement]]
[[FNC-1.2 Establish a system of intellectual control#FNC-1.2.3 | FNC-1.2.3	Establish the number of levels of arrangement]]

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! Metadata requirements
| 
[[MTD1.1 Register units of description#MTD1.1.3 | MTD-1.1.3 Indication the level of description]]

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! Technical requirements
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! style="background:silver" | Diagrams
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