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Cornford, S. L.

Publications and source records attributed to Cornford, S. L..

At least 19 records

Requirements based system level risk modeling

The problem that we address in this paper is assessing the expected degree of success of the system or mission based on the degree to which each requirement is satisfied and the relative weight of the requirements.

risk dependency probability requirement

Probabilistic risk reduction

We present an integrated approach to risk assessment and risk mitigation that is well suited to planning the development of complex software systems.

risk requirements architectures

Software support for improving technology infusion

This paper focuses on describing the custom software tool, DDP, that was developed to support the TIMA process, and on showing how the needs of the TIMA process have influenced the development of the structure and capabilities of the DDP software.

requirements risk decision-making tradeoffs

Risk-based decision making for novel technologies

ract summarizes a risk based decision-making process conceived of an developed at JPL and NASA, where it has been used to help plan and guide novel technology applications for use on spacecraft.

risk technology infusion

Descoping

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requirements interaction management requirements e

Descoping

We present an approach which facilitates descoping. It is founded upon a quantitative model of requirements attainment, resource consumption, and risk.

descoping requirements prioritization risk managem

A quantitative risk model for early lifecycle decision making

Decisions made in the earliest phases of system development have the most leverage to influence the success of the entire development effort, and yet must be made when information is incomplete and uncertain. We have developed a scalable cost-benefit model to support this critical phase of early-lifecycle decision-making.

requirements optimization summarization tradeoffs

Cost-benefit based assurance planning

We have extended an existing risk management framework with a refined cost-benefit model. Benefits are measured in terms of reduction of risk.

risk requirements tradeoffs design quality assuran

Incorporating cost-benefit analyses into software assurance planning

The objective is to use cost-benefit analyses to identify, for a given project, optimal sets of software assurance activities. Towards this end we have incorporated cost-benefit calculations into a risk management framework.

investment software quality software process impro

DDP - a tool for life-cycle risk management

At JPL we have developed, and implemented, a process for achieving life-cycle risk management. This process has been embodied in a software tool and is called Defect Detection and Prevention (DDP). The DDP process can be succinctly stated as: determine where we want to be, what could get in the way and how we will get there.

DDP risk management