W.4.2 Service Class Provider
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### W.4.2 Service Class Provider

The DICOM AE that claims conformance to this SOP Class as an SCP shall receive a Color Palette SOP Instance through the use of the DIMSE C-STORE service used in conjunction with this SOP Class.

The SCP shall store and provide access to all Type 1, Type 2, and Type 3 Attributes defined in the Color Palette IOD, as well as any Standard Extended Attributes (including Private Attributes) included in the SOP Instance. The SCP may, but is not required to validate that the Attributes of the Color Palette SOP Instance meet the requirements of the Color Palette IOD. The SCP shall not modify the values of any Attributes in the Color Palette SOP Instance without assigning a new SOP Instance UID, except that the SCP may modify values of, or add, Type 3 and Private Attributes that do not change the semantics or interpretation of the Palette.

### Note

E.g., an SCP may add values to Alternate Content Description Sequence (0070,0087), to provide an additional description in another language.

If a display device acting as an SCP applies a Color Palette to a set of images, all mandatory Color Palette and presentation intent Attributes shall be applied.

The SCP shall return, via the C-STORE response primitive, the Response Status Code applicable to the associated request. By performing this service successfully, the SCP indicates that the Color Palette SOP Instance has been successfully stored. Table W.4-1 shows the response status values. General status code values and fields related to status code values are defined in PS3.7.

Table W.4-1. C-STORE Response Status Values

Service Status | Further Meaning | Status Codes | Related Fields
--- | --- | --- | ---
Failure | Refused: Out of Resources | A700 | (0000,0902)
Error: Data Set Does Not Match SOP Class | A900 | (0000,0901) (0000,0902)
Error: Cannot Understand | C000 | (0000,0901) (0000,0902)
Success |  | 0000 | None

### Note

Status Codes are returned in DIMSE response messages (see PS3.7). The code values stated in column "Status Codes" are returned in Status Command Element (0000,0900).

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