I have a requirement where user puts a year and wants to see the report on particular year and then may be he can drill down to months quarter weeks .
So is it possible to use only 0calyear or we should use different infoobjects in the
modelling to get the report???
You have to use the different InfoObjects for month, quarter and week in your InfoProvider along with the calendar year.
In your report now you can create a variable on the Year and keep the other date charactersistics in free characteristics so that the user will be able to drilldown on the same.
Hope it helps, assign points if helpful.