Validation and assignment

Question

Hi Experts,
There are two fields under Validation tab in data manager.
One is Callable another is branch value.
1)Could you explain me the function of those two fields and
2) What is the purpose of assignmentn tab in data manager.
Thanks and regards,
Shalini

Answer 1

Hello Shalini,
Under the validation tab,
Callable is the property for a perticular validation which you have made sothat you can use this validation in another validation. here reusability comes into the picture.
To make the validation callable in other validation, set the property callable=yes.
If you set the property say "yes" then you can see the perticular validation name in the function dropdown list in the expression editor to call in another validation.
Branch Value:The taxonomy lookup field value on which a branch branches.you can write the validations on attributes of taxonomy table.to use this branch value, you have to "Add Branch" option if you want to write validations on attributes and its value.and this Add branch validation always will be a child validation of any validation on which you want to perform.
when you use add brach option then Branch value option will be enable and you can select the category here on which you want to perform the validation and alsio you can see the option "Attributes" and "text Values" drop down list will be enabled to wirte the validation on these in Expression editor. 
Validations: Validations in MDM are expressions that return a Boolean success or failure result.
For Example: validation IS_NOT_NULL (Product ID) checks if the value in the field product ID is nul
Assignments: Assignments, instead of returning a Boolean success or failure result, populate data value of any type to a field on which they are applied. Assignments can follow a validation or can be written stand alone. An example of assignment following a validation is
For Example: IF (IS_NULL (City),u201DMumbaiu201D, City) checks for whether the field City is null or not, if the field City is null then it assigns value u201CMumbaiu201D to the field City.
Hope this will clear your doubt.
TNR,
Saurabh...
Edited by: Saurabh Kumar Sahu on Jun 10, 2008 2:09 PM