Software as a Service offers a whole host of advantages compared with classic software installed and operated on the user’s premises. Firstly, it avoids software purchasing costs, thus reducing the investment risk. Less time is required for implementation, as the service provider merely needs to unlock the software for the user. SaaS also reduces the complexity of IT systems and allows the user to focus on his actual business. The time and user-dependent price models ensure that IT costs remain transparent at all times. As an Internet connection is the only requirement for use of the software, the latter can be accessed from mobile devices without any additional investment.
A range of price models are available for Software as a Service. In many instances, a user-dependent or time-dependent fee is payable. However, sometimes the costs also vary depending on the software functions made available. The user can opt for only individual functions or the full range of software functions against payment of a corresponding fee. In another price model, the calculated fee is based on the number of user transactions. Such transactions may be online purchases or documents created. Further price models available include billing by CPU usage or data volume. Depending on the software, some providers also charge a one-off software setup or adaptation fee.