evelopment of new electronic ser- vices. First, the benefits of perpetual beta and continuously improvements can be used to upgrade services with the improvements instantly visible to all users. Second, service providers have to make sure that improvements are visible to users and are valued as such. 7.3 State-of-the-Art Review of Developing Electronic Services 7.3.1 Analyzed Aspects Based on the key differences between electronic and nonelectronic services and their impact on the new service development process, we developed an analysis Service Delivery Platforms framework. This framework has been used to review existing literature on their suitability for guiding the development of new electronic services. The following list presents our analysis framework. Are there defined methods and processes to guide the development of new services? Are electronic services explicitly covered by the method? Are all phases of the innovation process included in the method or just selected aspects such as idea generation or implementation? Does the approach pay special attention to the IT service specific cost structure? Is a high degree of outsourcing and modularization supported? Does the method provide support for very fast cycles and immediate deployment? Does the method integrate aspects of continuous improvement through transparent feedback? Does the method include a step to look for existing components to reuse to take advantage of low search costs and standardization to shorten time to market and reduce fixed costs? Is special attention paid to complex value constellation in distributed net- works (based on outsourcing)? The following sections will review the literature in the area of new service development with regard to their prescriptive support for designing and developing services. Special attention will be paid to those aspects distilled above that are unique to electronic services compared to nonelectronic services. 7.3.2 Analyzed Literature A systematic literature review has been performed. An initial search u