4 Overall Development Plan__________ This chapter presents a program development plan for understanding and managing the overall space solar power program. An attempt was made to compile both technical and non-technical issues that need to be addressed in a phased program in order to make a space solar power program a reality. This chapter links previous background and marketing chapters with subsequent discussions of environment & safety, external relations, organization, technology development and design project examples. A program schedule which addresses all aspects of a space solar power program is also presented. 4.1 Program Requirements Figure 4.1 shows the top-level requirements for successfully implementing a space solar power program. These requirements are derived from the need to answer basic questions about the program's technical feasibility, eventual business viability and its public, political and social acceptability. To be successful, the program must meet all of these requirements. The program requirements shown in Figure 4.1 are taken to the next level of detail in Table 4.1. This process of refining program requirements can be successively applied until very detailed and specific requirements are defined. Both technical and non-technical program requirements (i.e„ business, environment & safety and political & social) are developed further in subsequent chapters of the report. Program scheduling transforms requirements into identifiable tasks, milestones, etc.. In the case of a space solar power program, extreme care must be taken to insure that both technical and nontechnical issues are addressed together in a phased manner so that program resources can be allocated in an efficient and timely manner. Program scheduling is addressed in detail in section 4.6. Space Solar Power Program Requirements Demonstrate Demonstrate Demonstrate Demonstrate Technical Business Environmental Political Feasibility Viability and Safety and Social Acceptability Acceptability Figure 4.1 Top-Level Space Solar Power Program Requirements 4.2 Identification of System Drivers The requirements introduced are not equal in their potential impact on the program. This section of the report identifies technical and non-technical requirements that drive the program. In section 4.2.4, these driving requirements are linked together to show the flow of the requirements from the program level to the hardware level.
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