Definition:
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
none
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
none
Related-Concepts
Impact *087
Scale-Impact *403
Percentage-Impact *306
Side-Effect *273
History-of-Concept
none
This Concept entered by Kay Dudman.