Index: openacs-4/packages/acs-core-docs/www/object-system-requirements.html =================================================================== RCS file: /usr/local/cvsroot/openacs-4/packages/acs-core-docs/www/object-system-requirements.html,v diff -u -r1.37.2.1 -r1.37.2.2 --- openacs-4/packages/acs-core-docs/www/object-system-requirements.html 2 Mar 2019 19:30:05 -0000 1.37.2.1 +++ openacs-4/packages/acs-core-docs/www/object-system-requirements.html 3 Sep 2021 09:15:18 -0000 1.37.2.2 @@ -89,7 +89,7 @@ model, or how to store information that may change extensively between releases or in different client installations. Furthermore, we want to avoid changes to an application's database queries in the face of any custom -extensions, since such changes are difficult or dangerous to make at runtime, +extensions, since such changes are difficult or dangerous to make at run time, and can make updating the system difficult. Some example applications in OpenACS 3.x with modifiable data models include:
User/groups: developers and users can attach custom data to group types, groups, and members of groups.
In the Ecommerce data model, the ec_custom_product_fields