## Table A Mathematical Model For Risk Assessment

(2) Pf = a • PM + b • PM + c • PC + d • PC + e • PD

hw sw hw sw where:

PM = Probability of failure due to degree of hardware maturity

PM = Probability of failure due to degree of software maturity

PC = Probability of failure due to degree of hardware complexity

PC = Probability of failure due to degree of software complexity

PD = Probability of failure due to dependency on other items and where: a, b, c, d, and e are weighting factors whose sum equals one.

Ct = Consequence of failure due to technical factors

Cc = Consequence of failure due to changes in cost

Cs = Consequence of failure due to changes in schedule and where: f, g, and h are weighting factors whose sum equals one.

Magnitude |
Maturity Factor (Pm) |
Complexity Factor (Pc) |
Dependency Factor PMhw |
Pc^ | ||

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