Need advice on reusing a business Schengen visa for a summer trip

I've just got a visa Schengen via Spain for business purposes, a 5 days training in Barcelone, after going their and getting back to my home, can I use this Visa in the summer for a trip in Europe, this trip will not include Spain so is it considered Visa shopping (a term that I've hear for the 1st time this morning) ?