Software-as-a-service is the flexible use of an "on-demand" software solution. It is useful when you have limited IT resources and limited investment funds available. SAP Business by Design is also most appropriate if you have a simple IT infrastructure and do not want to establish a more complicated environment.
Software-as-a-service helps you to limit financial expenses for your software (management, attendance, and update) and to develop transparent costs.
Eventually
software-as-a-service is growing dynamically as your enterprise is extending and you only have to pay for those resources you really use.
Do these descriptions fit your company? Then SAP Business by Design is the right choice for your enterprise.