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definition-Value-Decision-Impact-Estimate

Definition:

An Value-Decision-Impact-Estimate is an evaluated guess as to the Result of implementing a Design-Idea. In other words, it is a considered, quantified guess of the effect on a specific Scalar Requirement Attribute (performance or Resource) of implementing a Design-Idea (or set of Design-Ideas) in a System (or System subset) under stated Conditions.

Alternative Names

Concept Number: *433
English Master: Value-Decision-Impact-Estimate
Synonyms, Variations & Acronyms: Abbreviation [Value-Desicion-Impact-Estimate *433]:
Impact “Often "Impact Estimate" or “Impact” is short for “Value-Decision-Impact-Estimate”. See also Impact *087”

Detailing

A full Value-Decision-Impact-Estimate includes the following: a Scale-Impact, a Percentage-Impact and uncertainty data (known Error margins). The additional related information required to support an Value-Decision-Impact-Estimate includes the evidence, source(s) and Credibility.


Illustrations


Illustration: none


Type

[Value-Desicion-Impact-Estimate *433]: Scalar Design Metric


Examples

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Notes

Notes:
1. An Value-Desicion-Impact-Estimate can be positive, neutral or negative (undesirable in relation to stated target Levels).

2. Note the distinction between a Scale-Impact (an absolute numeric value on a Scale), and a Percentage-Impact (the percentage improvement estimated to be achieved in moving from the chosen Baseline towards the chosen target).

3. An Value-Decision-Impact-Estimate is usually concerned with the System improvement,
rather than with Stakeholder value (However, this Depends-On the choice of
Requirement Attribute: Stakeholder value can be tackled, for example,
Financial Saving).

4. An Value-Decision-Impact-Estimate is usually on a Scalar Requirement. However, much more rarely, it can be on a Binary Requirement of the System (that is on a Function-Requirement, a Design-Constraint or a Condition-Constraint). This is used in situations where an explicit Check is considered necessary to help evaluate Design-Ideas.


Keyed-Icons


Keyed-Icon [Value-Desicion-Impact-Estimate *433]: ->.#
Note: the icon is made up of the Impact symbol “->“ and the estimate symbol “#”, with the “.” indicating that it is made up of two Concepts.


Drawn-Icons

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Impact *087
Scale-Impact *403
Percentage-Impact *306
Side-Effect *273


History-of-Concept

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This Concept entered by Kay Dudman.

Created by system. Last Modification: Monday 26 of November, 2018 15:04:41 CET by Admin (Kai).
(Cached)

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