To see the new attribute in a work item, you need to extend the work item editor(s) to display that custom property (see the on-line help for that, or google for it).   If you have done that, then you should see it in new work items that you create.   To see it in old work items, you should perform the operations described in the jazz.net forum entries, like https://jazz.net/forum/questions/72330/see-new-attribute-on-existing-work-items

Thanks, as mentioned by you rightly, I was able to locate the role from master project area in consumable project area, under "Process Configuration > Permissions > Roles".

He meant, you have to add the attribute to some screen of the workitem.

those screens are called the workitem editor, cause you are editing the values in a workitem. 

RTC doesn't just stick the attribute on some page, YOU have to do the customization work.. 

in the process config, workitems,



and then when you save the editor the config, for workitems being created AFTER you did this, the attribute should show where you configured it to display.

for existing workitems, YOU have to tell RTC to update their state to include the new attribute. As Geoff mentioned

 In master project area, I also created a new workitem following exactly the steps mentioned in http://www.ibm.com/developerworks/rational/library/custom-work-item-rational-team-concert/.