ycle is built on two sets of views. In the first set there is a physical or technology specific and a logical or technology neutral view. The technology spe- cific view handles implementation and deployment and the technology neutral view handles requirements and design. When a problem is identified, the requirements that are captured are not specific to a technology. NGOSS suggests the design definition also to be independent of the technology to facilitate multiple equivalent instantiations from a single solution definition. In the implementation and deploy- ment phase a specific technology is adopted and used. The second set consists of a service developer view and a service provider view. While the service provider identifies the business issues and finally deploys the solution, the design and implementation of the solution is handled by the service developer. It can be seen that both service provider and service developer has inter- actions with the logical and physical views of the NGOSS lifecycle. The overlap of service provider view with the logical view happens in the busi- ness block where the business problems are identified. All the activities of the ser- vice provider, for business definition including process and preparation of artifacts for service developer to start work on the design, happens in the business block. The overlap of service developer with the logical view happens in the system block where the technology neutral design is defined. All the activities of the service developer for system design including preparation of artifacts to start work on the imple- mentation happens in the system block. The overlap of service developer with the physical view happens in the implementation block where the technology specific implementation occurs. All the activities of the service developer for implementing NGOSS Service providers view Service developers view Logical view Business System (Technology neutral) Knowledge Physical view Deployment Implementation (Technology specific) Figure 21.2 NGOSS 