I'm using RTC V5.0.2 and I want to add a field which has the number of days between the current date and the work item creation date
One answer
You will need to do some customization to achieve this. One way to do it is as follows.
1. Create a new attribute of the integer type.
2. Add a calculated value script to calculate the value when the work item is modified.
If this sounds alien to you. You should start with the below articles.
http://www.ibm.com/developerworks/rational/library/rational-team-concert-calculated-fields-work-item/
https://jazz.net/library/article/1003
Strictly speaking, such attribute will not contain the "true" value because to maintain a "true" value, your work items have to be changed constantly, or at least daily, which does not make sense at all.
If you want such field just for reporting purpose, you should explain how you would use it so that other options can be considered.
1. Create a new attribute of the integer type.
2. Add a calculated value script to calculate the value when the work item is modified.
If this sounds alien to you. You should start with the below articles.
http://www.ibm.com/developerworks/rational/library/rational-team-concert-calculated-fields-work-item/
https://jazz.net/library/article/1003
Strictly speaking, such attribute will not contain the "true" value because to maintain a "true" value, your work items have to be changed constantly, or at least daily, which does not make sense at all.
If you want such field just for reporting purpose, you should explain how you would use it so that other options can be considered.