User interface development tools

One or more computer-readable media comprising instructions configured to cause a computer to perform a method, the method comprising:

• reading a description of a user interface element associated with a user interface;
• reading a description of a business rule associated with the user interface element;
• and
• displaying the user interface element in the user interface based at least in part on the business rule associated with the user interface element.

A system comprising:

• a first computer configured to run a software tool for modifying a user interface, wherein the user interface is associated with one or more business groups;
• a second computer configured to receive instructions from a user and provide the instructions to the first computer;
• and
• one or more computer-readable media comprising descriptions of elements that can be included in the user interface, wherein the descriptions associate one or more element aspects with the one or more business groups.

One or more computer-readable media comprising a software description of a user interface element, the software description comprising:

• an indication of a first business group;
• a description of a first element behavior associated with the first business group;
• an indication of a second business group;
• and
• a description of a second element behavior associated with the second business group, wherein the first element behavior is different from the second element behavior.