Engineering Specification Function Specifications Unit of Marginal Ideal Value Customer Owner (metric) Measure Value Needs Satisfied S1 System Largest m unpowered CN10 Owen ≤ 1.5 ≤ dimensions prototype S2 System Weight Lbs 20 5 CN9, CN10 All ≤ ≤ S3 System System cost $ < 900 < 800 CN9 All S4 System Number of Integer 20 >=25 CN6, CN7 Maddie ≥ steps S5 System Resolution of deg/sec 1 CN1, CN3, Becky ≥ 0.1 angular velocity CN8 data S6 System Resolution of deg/sec 0.5 CN1, CN4, Becky ≥ 0.1 angular position CN8 data S7 System Total cost of Unitless 0.1 0.01 CN9, CN10, All transport of CN11, CN12 device S8 System Data sampling Hz 100 500 CN1, CN2, Maddie ≥ ≥ rate CN3, CN4, CN5, CN8 S9 System Operational Hours 0.5 1.5 CN9 Becky time between charges for system System Amount of data Hours 0.1 0.5 CN1, CN2, Maddie 0 for onboard CN3, CN4, storage CN5 System Safe for user Binary Yes Yes CN12 All and observers System Number of 25 Integer 40 50 CN6, CN7 All ≥ ≥ step trials achieved System Training time Hrs <0.5 CN1 All (1st time)
Engineering Specification Function Specifications (metric) Unit of Measure Marginal Value Ideal Value Customer Needs Satisfied Owner S1 System Largest dimensions m ≤ 1.5 ≤ unpowered prototype CN10 Owen S2 System Weight Lbs ≤ 20 ≤ 5 CN9, CN10 All S3 System System cost $ < 900 < 800 CN9 All S4 System Number of steps Integer ≥ 20 >=25 CN6, CN7 Maddie S5 System Resolution of angular velocity data deg/sec 1 ≥ 0.1 CN1, CN3, CN8 Becky S6 System Resolution of angular position data deg/sec 0.5 ≥ 0.1 CN1, CN4, CN8 Becky S7 System Total cost of transport of device Unitless 0.1 0.01 CN9, CN10, CN11, CN12 All S8 System Data sampling rate Hz ≥ 100 ≥ 500 CN1, CN2, CN3, CN4, CN5, CN8 Maddie S9 System Operational time between charges for system Hours 0.5 1.5 CN9 Becky System Amount of data for onboard storage Hours 0.1 0.5 CN1, CN2, CN3, CN4, CN5 Maddie System Safe for user and observers Binary Yes Yes CN12 All System Number of 25 step trials achieved Integer ≥ 40 ≥ 50 CN6, CN7 All System Training time (1st time) Hrs 0 <0.5 CN1 All
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