Technology selection and validation: new millennium flight projects

Minning, C. P.; Buehler, M.; Fujita, Toshio; Lansing, F. L.; Man, Guy K.; Aljabri, A. S.; Stevens, C. M.

doi:10.1109/aero.2000.879326

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Data collection consisted of: 1) participant observation over five months of the space flight validation process, 2) 46 semistructured interviews with NMP members (one NASA principal) and 34 group meetings, 3) informal and semi-formal discussions with small groups and JPL members, 4) attendance at five detailed technical presentations of the NMP process, and 5) the study of hundreds of related documents, slide sets, and papers that described the NMP process (Li, 2000, Minning et al, 2000. All interviews and many of the group discussions were audio recorded and transcribed.…”

Section: Methodsmentioning

confidence: 99%

Boundary Objects in Design: An Ecological View of Design Artifacts

Mark

Lyytinen²,

Bergman

2007

JAIS

106

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Traditionally, Systems Analysis and Design (SAD) research has focused on ways of working and ways of modeling. Design ecology -the task, organizational and political context surrounding design -is less well understood. In particular, relationships between design routines and products within ecologies have not received sufficient attention. In this paper, we theorize about design product and ecology relationships and deliberate on how design products -viewed as boundary objects -bridge functional knowledge and stakeholder power gaps across different social worlds. We identify four essential features of design boundary objects: capability to promote shared representation, capability to transform design knowledge, capability to mobilize for action, and capability to legitimize design knowledge. We show how these features help align, integrate, and transform heterogeneous technical and domain knowledge across social worlds as well as mobilize, coordinate, and align stakeholder power. We illustrate through an ethnography of a large aerospace laboratory how two design artifacts -early proto-architectures and project plans -shared these four features to coalesce design processes and propel successful movement of designs across social worlds. These artifacts resolved uncertainty associated with functional requirements and garnered political momentum to choose among design solutions. Altogether, the study highlights the importance of design boundary objects in multi-stakeholder designs and stresses the need to formulate sociology-based design theories on how knowledge is produced and consumed in complex SAD tasks.

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Section: Methodsmentioning

confidence: 99%

Boundary Objects in Design: An Ecological View of Design Artifacts

Mark

Lyytinen²,

Bergman

2007

JAIS

106

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“…A few years later Boeing developed the 0.17-in high AS1773 fiber optic transceiver for use in aerospace experiments and missions including NASA's New Millennium program projects and Naval Research Laboratory's Microelectronics and Photonics Test Bed. [32][33][34] The AS1773 transceiver packaging was based on hermetically sealed 1300 nm surface emitting LED (SELED) and PIN photodetector optical subassemblies and thick-film multi-chip module ceramic circuitry. Table 1 summarizes the digital data rate performance and packaging attributes of the aforementioned FOTR, HSDB, FODB and AS1773 modules.…”

Section: Space Fiber Optics and Photonics Initiativesmentioning

confidence: 99%

Fiber optic interconnect and optoelectronic packaging challenges for future generation avionics

Beranek

2007

SPIE Proceedings

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Forecasting avionics industry fiber optic interconnect and optoelectronic packaging challenges that lie ahead first requires an assumption that military avionics architectures will evolve from today's centralized/unified concept based on gigabit laser, optical-to-electrical-to-optical switching and optical backplane technology, to a future federated/distributed or centralized/unified concept based on gigabit tunable laser, electro-optical switch and add-drop wavelength division multiplexing (WDM) technology. The requirement to incorporate avionics optical built-in test (BIT) in military avionics fiber optic systems is also assumed to be correct. Taking these assumptions further indicates that future avionics systems engineering will use WDM technology combined with photonic circuit integration and advanced packaging to form the technical basis of the next generation military avionics onboard local area network (LAN). Following this theme, fiber optic cable plants will evolve from today's multimode interconnect solution to a single mode interconnect solution that is highly installable, maintainable, reliable and supportable. Ultimately optical BIT for fiber optic fault detection and isolation will be incorporated as an integral part of a total WDM-based avionics LAN solution. Cost-efficient single mode active and passive photonic component integration and packaging integration is needed to enable reliable operation in the harsh military avionics application environment. Rugged multimode fiber-based transmitters and receivers (transceivers) with in-package optical BIT capability are also needed to enable fully BIT capable singlewavelength fiber optic links on both legacy and future aerospace platforms.

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“…In steps 1-3, all proposed technologies are reviewed against the published requirements as well as the NMP space flight validation requirements, a.k.a. "fltval" filters [22]. The main purpose of the filters is to determine which technologies must be validated in space, i.e.…”

Section: Nmp Selection Processmentioning

confidence: 99%

Exploring the relationship between project selection and requirements analysis: an empirical study of the new millennium program

Bergman¹,

Mark²

Proceedings IEEE Joint International Conference on Requirements Engineering

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The relationship between project selection and requirements analysis is important, yet has not received much attention. The decisions made during project selection directly affect and frame a project's requirements analysis. In current practice, it is expected that requirements analysis begins after project selection has occurred. Yet, we know little empirically about the procedural relationship between project selection and requirements analysis. We performed a field study to examine in detail how project selection is performed and what procedural relationship, if any, exists between project selection and requirements analysis. We found, contrary to the common view of requirements engineering practice, that requirements analysis occurred in multiple parallel streams. We observed that requirements analysis helped define the initial project choices. In addition, as the project selection process progressed, each candidate project's requirements were further refined. We call this process multiple parallel competitive requirements analysis (MPCRA). We argue that MPCRA should be considered as a viable alternative to current requirements engineering practices, especially for determining and designing large-scale complex projects.

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Technology selection and validation: new millennium flight projects

Cited by 5 publications

References 4 publications

Boundary Objects in Design: An Ecological View of Design Artifacts

Boundary Objects in Design: An Ecological View of Design Artifacts

Fiber optic interconnect and optoelectronic packaging challenges for future generation avionics

Exploring the relationship between project selection and requirements analysis: an empirical study of the new millennium program

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