[TYPO3-mvc] access to a new attribute

[Cornelius Illi]

Hi everyone,

maybe i am doing it wrong, but in order to be able to display a new 
attribute i need to do the following, right?

- update: ext_tables.sql
- update: Classes/Domain/Model.php; add var + getter-method
- update: Configuration/TCA/tca.php; add and configurate new column

If really everything needs to be done even if I don't want to display 
the records in the BE than i am definately not convinced.
Cheers, Cornelius