# Using "tag:stardog:" instead of URI naming, can we change to URI usage all over? **URL:** \ **Category:** Support\ **Created:** [February 29, 2024, 7:30am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859 "2024-02-29T07:30:58Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![cle](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@cle](https://community.stardog.com/u/cle)\ **Post date:** [February 29, 2024, 7:30am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/1 "2024-02-29T07:30:58Z")
Hei. Stardog has chosen to use the URN type of naming in prefixes used. Why is that? Example from a model made in designer. exported as .ttl tag:stardog:designer:FRbaseMod:model:Agreement a owl:Class ; rdfs:label "Agreement" ; rdfs:comment "Dimension for keeping agreement specific data" ; tag:stardog:designer:colorId "sd-qb-red" . Can we change to using URI naming? Is there any place in Stardog that must have URN type naming? That prohibit use of URI naming? Thanks Regards Einar Clementz. ---
**Author:** ![Lars\_Heling](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/lars_heling/32/1657_2.png) [@Lars\_Heling](https://community.stardog.com/u/Lars_Heling)\ **Post date:** [February 29, 2024, 7:36am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/2 "2024-02-29T07:36:43Z")
Hi Einar, you can change the default URIs in the project Settings tab (in the upper right corner) in Designer. You can set custom URI prefixes with the "Customize advanced project details" option. See the following example: ![Screenshot 2024-02-29 at 08.33.33](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/5/5687dca49a805a78092b70d7c5c3a06f440ff731.png) I hope this answers your question. Best regards Lars ---
**Author:** ![cle](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@cle](https://community.stardog.com/u/cle)\ **Post date:** [February 29, 2024, 7:50am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/3 "2024-02-29T07:50:00Z")
Hi Lars. Thanks. I know we could change with this functionality. I put forward the question in case we would encounter any issues some place in Stardog. I assume not. We go forward with URI prefix. Good, thanks. Einar. ---
**Author:** ![cle](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@cle](https://community.stardog.com/u/cle)\ **Post date:** [February 29, 2024, 9:10am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/4 "2024-02-29T09:10:43Z")
Hi. Additional Question. I remember from earlier posts, changing the prefix only have effect on new item in the project, not ones that is already created with the previous prefix. Is there a practical method to change prefix all item in project? Thanks. Einar ---
**Author:** ![Laura\_Firey](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/laura_firey/32/635_2.png) [@Laura\_Firey](https://community.stardog.com/u/Laura_Firey)\ **Post date:** [February 29, 2024, 2:35pm UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/5 "2024-02-29T14:35:28Z")
Hi Einar, At this time, Designer does not support a find and replace functionality for IRIs. I would suggest one of two paths: (Option 1) In your Designer project for each IRI you want to edit, open the details panel and edit the IRI by hand. ![image](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/3/3034b91f3319e500416296272aa8b688f2cf73ab.png) (Option 2) If that's not possible due to the size of your data model, I would suggest editing the `.ttl` file outside of Stardog using a text editor which allows find and replace, [importing to Stardog](https://docs.stardog.com/stardog-applications/designer/#using-an-existing-model), and then [importing the data model](https://docs.stardog.com/stardog-applications/designer/#using-an-existing-model) to a new Designer project to continue working. Thanks, Laura ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [April 28, 2024, 6:17am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/6 "2024-04-28T06:17:43Z")
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**Author:** ![zachary.whitley](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/zachary.whitley/32/94_2.png) [@zachary.whitley](https://community.stardog.com/u/zachary.whitley)\ **Post date:** [May 26, 2024, 11:32am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/7 "2024-05-26T11:32:56Z")
I believe you have a third option of enabling reasoning and defining an owl:equivalentClass for tag:stardog:api:ecom:Vendor You can also run a SPARQL update query to change any data with the previous prefix. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [November 24, 2024, 4:10am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/8 "2024-11-24T04:10:37Z")
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**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [June 19, 2025, 5:17am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/9 "2025-06-19T05:17:56Z")
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**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [February 6, 2026, 8:46am UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/10 "2026-02-06T08:46:33Z")
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**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\ **Post date:** [October 13, 2026, 4:19pm UTC](https://community.stardog.com/t/using-tag-instead-of-uri-naming-can-we-change-to-uri-usage-all-over/4859/11 "2026-10-13T16:19:05Z")