MELY - According to Sizing the Cloud report, Software-as-a-Service (SaaS) offers more growth opportunity than any other segment in the still largely vague market for cloud computing services. SaaS will retain its position as a leading segment in cloud computing with SaaS market growing three-fold to $92.8 billion by 2016, the report said. In contrast, Infrastructure-as-a-service (IaaS) will witness a rapid growth in the next few years but Forrester expects dynamic infrastructure services to perform better than IaaS in the long term.