NASA/SP-2010-576 (VER. 1.0), NASA SPECIAL PUBLICATION: NASA RISK-INFORMED DECISION MAKING HANDBOOK (APRIL 2010)
NASA/SP-2010-576 (VER. 1.0), NASA SPECIAL PUBLICATION: NASA RISK-INFORMED DECISION MAKING HANDBOOK (APRIL 2010)., The purpose of this handbook is to provide guidance for implementing the risk-informed decision making (RIDM) requirements of NASA Procedural Requirements (NPR) document
NPR 8000.4A, Agency Risk Management Procedural Requirements [1], with a specific focus on
programs and projects in the Formulation phase, and applying to each level of the NASA
organizational hierarchy as requirements flow down. Appendix A provides a cross-reference
between the RIDM-related requirements in NPR 8000.4A and the sections of this handbook for
which guidance is provided.
This handbook supports RIDM application within the NASA systems engineering process, and is
a complement to the guidance contained in NASA/SP-2007-6105, NASA Systems Engineering
Handbook [2]. Figure 1 shows where the specific processes from the discipline-oriented NPR
7123.1, NASA Systems Engineering Process and Requirements [3], and NPR 8000.4 intersect
with product-oriented NPRs, such as NPR 7120.5D, NASA Space Flight Program and Project
Management Requirements [4]; NPR 7120.7, NASA Information Technology and Institutional
Infrastructure Program and Project Management Requirements [5]; and NPR 7120.8, NASA
Research and Technology Program and Project Management Requirements [6]. In much the
same way that the NASA Systems Engineering Handbook is intended to provide guidance on the
specific systems engineering processes established by NPR 7123.1, this handbook is intended to
provide guidance on the specific RIDM processes established by NPR 8000.4A. This handbook provides guidance for conducting risk-informed decision making in the context of
NASA risk management (RM), with a focus on the types of direction-setting key decisions that
are characteristic of the NASA program and project life cycles, and which produce derived
requirements in accordance with existing systems engineering practices that flow down through
the NASA organizational hierarchy. The guidance in this handbook is not meant to be
prescriptive. Instead, it is meant to be general enough, and contain a sufficient diversity of
examples, to enable the reader to adapt the methods as needed to the particular decision problems
that he or she faces. The handbook highlights major issues to consider when making decisions in
the presence of potentially significant uncertainty, so that the user is better able to recognize and
avoid pitfalls that might otherwise be experienced. Examples are provided throughout the handbook, and in Appendix F, to illustrate the application
of RIDM methods to specific decisions of the type that are routinely encountered in NASA
programs and projects. An example notional planetary mission is postulated and used throughout
the document as a basis for illustrating the execution of the various process steps that constitute
risk-informed decision making in a NASA risk management context (“yellow boxes”). In
addition, key terms and concepts are defined throughout the document (“blue boxes”).
Where applicable, guidance is also given on the spectrum of techniques that are appropriate to
use, given the spectrum of circumstances under which decisions are made, ranging from
narrow-scope decisions at the hardware component level that must be made using a minimum of time and resources, to broad-scope decisions involving multiple organizations upon which
significant resources may be brought to bear. In all cases, the goal is to apply a level of effort to
the task of risk-informed decision making that provides assurance that decisions are robust.
Additional guidance is planned to address more broadly the full scope of risk management
requirements set forth in NPR 8000.4A, including:
 Implementation of the RIDM process in the context of institutional risk management; and
 Implementation of Continuous Risk Management (CRM) in conjunction with RIDM.