Paschall's_4-2_Milestone_2

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Dec 6, 2023

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1 5-2 Milestone Three: Draft of Trade-Off James Z. Paschall Global Campus, Southern New Hampshire University EMA 610: System Thinking for Engineering Professor Raymond Sheen October 15, 2023

2 Introduction During the initial phase, I delved into the captivating case study of the Hubble Space Telescope (HST). This involved exploring the significance of the case study and why it sparked my interest. In this milestone, I thoroughly examined the lifecycle of the HST system, shedding light on its development, deployment, and future prospects. Moving forward, I will elucidate the project's requirements, encompassing stakeholder involvement, the process of elicitation, engineering specifications, and project management. Elicitation Much to my surprise, the ambitious HST project faced a rocky start, with its success hinging on input from political, governmental, and institutional figures. Just take a look at figure one for a glimpse of the intricate program interfaces. According to Mattice (2005), in its early stages, the program suffered from unclear mechanisms and a divided user community, leading to a lack of engagement in defining and advocating for the program. Among the key players in the HST program were astronomers and the Department of Defense (DOD). Initially, they held vastly different perspectives on the project's needs and system requirements. It wasn't until several months into the endeavor that they finally found common ground. According to Mattice (2005), both parties shared a desire to harness cutting-edge technology to observe distant objects, albeit with different intentions - one for exploring space and the other for wartime "spying." This convergence laid the foundation for the project's objectives: a remarkable lifespan of 15 years, punctuated by service intervals of 2.5 years. Throughout the years, the HST's lifecycle has been extended through numerous enhancements installed in space, ensuring its continued impact.

3 Figure One: Program Interfaces The market was in a constant state of flux, experiencing both push and pull forces. The project heavily relied on technology push, which played a significant role. To explore the vast reaches of space and the Earth, cutting-edge technology had to take center stage. This drive for technological advancement persisted throughout the entire lifespan of the HST, as mentioned earlier. On the other hand, the market pull factor came into play when the project scope was being defined by the two main stakeholders. Both parties had a vested interest in utilizing the HST for their specific needs, creating a sense of excitement and investment in the project's success. Taking into account NASA's established leadership in space-related endeavors, they assumed control of the elicitation process, akin to previous space shuttle programs. According to Mattice (2005), following a four-phased "Phased Program" approach, Phase A focused on answering the question, "Can we construct such a colossal space telescope, assuming a national decision to proceed, without considering costs?". This phase involved incorporating all the

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