A Basis is an underlying Idea that is a foundation for a specification.

Alternative Names

Concept Number: *006
English Master: Basis
Synonyms, Variations & Acronyms: Base


A “Basis” Parameter is used to specify a foundation Idea, so that it is stated explicitly, and can be understood and checked. Hopefully, if necessary, a Basis specification will be challenged and corrected. It is a tool for Risk analysis.




Parameter, Risk-Analysis



Tolerable [A1]: 60%, [Not A1]: 50%? <- Guess as to consequence.
A1: Assumption: Drugs Law [Last Year] is still in force and unchanged with
respect to this plan.
Basis: Drugs Law “Conditions for Approval for Human Trials”<- Pharmaceutical Law [Last Year].

Rationale: Our Corporate Policy about following laws, strictly and honestly
<- Corporate Ethics Policy.
Condition: Applies only to <adult, voluntary, healthy, field-trial people>.

“A1” is a defined Assumption that can be reused in this or other contexts.


1. Basis statements are used to declare a set of Conditions, which we assume will be true. We want to make it quite clear that the related statements are entirely contingent upon the Conditions being true.

A Basis statement is, or will be, for the appropriate Qualifier time, place and other Conditions, fundamental and stable. We state a Basis in Case it is untrue, or is a misunderstanding, or needs improvement in specification: the intended readership needs to Check whether they agree that a Basis statement applies. In addition, we state a Basis to ensure that the Conditions are checked later, at the relevant time.

2. Basis is different from Assumption. An Assumption is a set of statements, which we expect be true in the Planning horizon (for example, the dates indicated in Goal and Tolerable Parameters), but we cannot be sure; they can well change. The related specification may need updating if they do.

3. Basis is quite different from Rationale. A Rationale is a set of statements, which lead to a desire to make a specific specification. It explains how we got to that particular specification. Basis is a set of statements, which are the foundation on which a specification is made. If the Result of evaluation of any of the relevant Basis statements changes, then the specification may no longer be valid.








This Concept entered by Diane O'Brien.

Created by system. Last Modification: Thursday 11 of July, 2019 13:48:54 CEST by Admin (Kai).

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