But based on what limited information you put in your question I don't think you're using the OSLC API - to do this you must provide header OSLC-Core-Version: 2.0 with the GET/PUT/POST.

1. You can't "modify" a link. You can remove an existing link, or you can add a new link. So you need to remove the existing link and add a new link. These can be done in one PUT.

2. Ignore the tags in the rdf like:

These are entirely managed by DOORS Next. You can use them to perhaps see more detail about the link, that's all.

3. The rdf which specifies an outgoing link is a tag looking like:

In this the LT_7oqH57C1Ee-Oi4_TXlWUGQ is the unique id of the link type and the rdf:resource is the object of the link - the artifact it's going to.

If you "modify" this to point at a different object, what DOORS Next will do internally is delete the existing link and create the new link you specified.

There will be multiple tags with the same rm_property:LT_7oqH57C1Ee-Oi4_TXlWUGQ if there are multiple outgoing links of that type from the artifact.

You should only have one link of a specific type between two specific artifacts. I've not tried breaking this rule to see what happens - caveat emptor. Aside: one aspect of using the APIs which needs careful management by the API user (i.e. you) is that, while the UI prevents many user actions which don't make sense, the APIs don't have so many guardrails - e.g. you could try and put megabytes of data in an attribute and the API will try to do it for you, even though that will be impossible for someone to look at in the UI and impossible to include in a report.

content: modified XML data along with other content of an artifact

HttpPut put = new HttpPut(artifactURI);

put.addHeader("Accept", "application/rdf+xml");

put.addHeader("Content-Type", "application/rdf+xml");

put.addHeader("OSLC-Core-Version", "2.0");

put.addHeader("Configuration-Context", configurationURl);

put.addHeader("If-Match",etag);

put.setEntity(new StringEntity(content, HTTP.UTF_8));

HttpUtils.sendPutForSecureDocument(server, put, login, password, httpclient, JTS_Server);

 
Here validation has been done before doing put

HttpResponse documentResponse = httpClient.execute(put);

1. GET an artifact with two links

2. Remove one of the links and PUT to update the artifact - it now only has one link

3. GET the artifact, shows it only has one artifact.

Look at what is PUT at step 2 - all that's changed is one of the outgoing links has been removed, so there's only one link tag (in bold). Nothing else is modified.

The outgoing links look like:

The rdf:resource attribute value is the URL of the object artifact - that's where the link goes to. It must be in the same config as this source artifact.

Ignore the tags like <rdf:Description rdf:nodeID="A0"> AND everything below them - don't modify, don't remove, just leave them alone.

I removed unneeded headers and namespaces in the XML, just showing headers that are needed/useful.

1. GET an artifact with two outgoing Satisfies links (in bold)

<rdf:RDF

    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

    ...

    xmlns:oslc_auto="http://open-services.net/ns/auto#" > 

    <rdf:Description rdf:about="https://localhost:9444/rm/resources/BI_cTjjYLCEEe-bLPm2dX65rw">

        <rdf:type rdf:resource="http://open-services.net/ns/rm#Requirement"/>

        <acp:accessControl rdf:resource="https://localhost:9444/rm/accessControl/_3K4wkIOOEeu4rcLuUs_vzw"/>

        <dcterms:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">5231475</dcterms:identifier>

        <j.1:PVSubstitutionMarkers rdf:datatype="http://www.w3.org/2001/XMLSchema#string">open={

end=}

esc=$</j.1:PVSubstitutionMarkers>

        <dcterms:description rdf:parseType="Literal">Des1</dcterms:description>

        <rdf:type rdf:resource="http://jazz.net/ns/rm#Text"/>

        <oslc_config:component rdf:resource="https://localhost:9444/rm/cm/component/_hwHZ0AirEe-bCa7jHbxLPg"/>

        <j.0:Decomposition rdf:resource="https://localhost:9444/rm/resources/BI_LZOJM7CEEe-bLPm2dX65rw"/>

        <dcterms:creator rdf:resource="https://localhost:9444/jts/users/E520039"/>

        <dcterms:contributor rdf:resource="https://localhost:9444/jts/users/H583831"/>

        <dcterms:created rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2024-12-02T08:07:15.382Z</dcterms:created>

        <rdf:type rdf:resource="http://localhost:9444/dng/artifact#Supplier_System_Requirement"/>

        <oslc:instanceShape rdf:resource="https://localhost:9444/rm/types/OT_qQth8AirEe-bCa7jHbxLPg"/>

        <process:projectArea rdf:resource="https://localhost:9444/rm/process/project-areas/_3K4wkIOOEeu4rcLuUs_vzw"/>

        <dcterms:title rdf:parseType="Literal">5231468</dcterms:title>

        <oslc:serviceProvider rdf:resource="https://localhost:9444/rm/oslc_rm/_3K4wkIOOEeu4rcLuUs_vzw/services.xml"/>

        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2025-07-23T06:42:25.84Z</dcterms:modified>

        <jazz_rm:primaryText rdf:parseType="Literal">

            <div xmlns="http://www.w3.org/1999/xhtml">

                <p dir="ltr" id="_1733126835239">Sample Testing Check</p>

            </div>

        </jazz_rm:primaryText>

    </rdf:Description>

    <rdf:Description rdf:nodeID="A0">

        <rdf:subject rdf:resource="https://localhost:9444/rm/resources/BI_cTjjYLCEEe-bLPm2dX65rw"/>

        <rdf:predicate rdf:resource="http://www.ibm.com/xmlns/rdm/types/Decomposition"/>

        <rdf:object rdf:resource="https://localhost:9444/rm/resources/BI_LZOJM7CEEe-bLPm2dX65rw"/>

        <rdf:type rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/>

        <dcterms:title>5231469</dcterms:title>

    </rdf:Description>

</rdf:RDF>