It should come as no surprise that Cisco Systems and Adobe Systems, two companies that enjoyed spectacular growth establishing them as tech blue-chips during the nascent Internet, are also among the first companies to embrace the software-as-a-service model (SaaS) (define) as the vehicle of choice for the Internet’s next evolutionary phase. On Thursday, both companies outlined their vision, their expectations and some of their new offerings for this emerging SaaS platform at the Software and Information Industry Association’s OnDemand conference in San Jose, Calif.