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definition-Downstream

Definition:

Relative to an given Process, “downstream” refers to any Processes, which are carried out later, and implies that they are impacted in some way by that upstream Process.

Alternative Names

Concept Number: *052
English Master: Downstream
Synonyms, Variations & Acronyms: none

Detailing

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Illustrations


Illustration: none


Type

Domain: Process.


Examples

Goal [Processes <~ Systems Test] 99.5% “means the Goal Level is for Processes downstream from Systems Test.”


Notes

Rationale:
Interest in the downstream Concept stems from two ideas:
1. The costs of fixing Defects, which get injected upstream, become, on average, one or two orders of magnitude worse when we encounter them downstream during test or in the field.
2. The value of both “early Quality-Control” and of” Process-Improvement in upstream development stages”, is a Function of the potential downstream damage, which apparently-small upstream Defects can cause. (Compare to the “Butterfly Effect” in Chaos Theory).


Keyed-Icons

<~ A <~ B Means A is downstream of B
Notice similarity with source arrow. Upstream is source or downstream pollution.


Drawn-Icons

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History-of-Concept

none


Usage

“Customer use” is downstream from “pilot testing”


Parameter

Downstream. Long form = Downstream From









This Concept entered by Lisa.

Created by system. Last Modification: Thursday 11 of July, 2019 18:04:06 CEST by Admin (Kai).
(Cached)

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