Spanish to English Marketing Marketing / Market Research

Hi, I'd appreciate your help with this term.

Sorry if there isn't much context but they are short answers to a survey. The survey has been given to several marketing departments of a hardware and software company.

I have seen "entorno de integración" but not "entorno de pre-integración" and I know ISV are independent software vendors.
Context is:
"¿Cuáles de estos aspectos de los centros para clientes de IBM son más eficaces para impulsar sus ventas e ingresos?
Ofrecer sesiones informativas/talleres especializados sobre soluciones industriales, demos de las mismas, pruebas de concepto y entornos de pre-integracion de ISVs."

Thanks :)