Combustion Products Topical Analysis and Descriptive Topical Parameterization
One portion of a NASA technical note (NASA TN D-5452 "Thermodynamic and Transport Properties of Air and the Combustion Products of Natural Gas and of ASTM-A-1 Fuel with Air") is topically analyzed as an example of the process. read more.
Derivation
Derivation is the process of identifying topics, parameters, and/or values by way of “reasoning”. The inputs to the reasoning process are: 1) pre-existing characterizations1 (which might, or might not, have been produced in the context of a conceptual design) and 2) new information that was (for whatever reason) not considered when developing those pre-existing characterizations.... read more
Measure
(1) As a verb: the act of verifying a quantity by inspection. (2) As a vernacular noun: a seldom-used term referring to a quantifiable property or attribute of a thing. The “thing” itself can be either concrete or abstract. The usage arises from legacy System Engineering practice with respect to requirements, referring to a property... read more
Orbital Parameters Topical Analysis and Parameterization
Relational database design principles are applied to the analysis of topics and identification of associated parameters. read more.
Qualitative Requirement “Binding”
An excerpt from MIL-A-83577B (Assemblies, Moving Mechanical, for Space and Launch Vehicles, General Specification for) is analyzed to concretely demonstrate topical analysis and parameterization. read more.
Release and Retention Mechanism Topical Analysis and Parameterization
An excerpt from MIL-A-83577B (Assemblies, Moving Mechanical, for Space and Launch Vehicles, General Specification for) is analyzed to concretely demonstrate topical analysis and parameterization. read more.
Surrogate
A situation where a technical characterization having direct relevance has been replaced by one having contrived relevance, usually by way of analytical inference. Surrogation is most commonly seen in the context of technical requirements where, in the legacy, they’re sometimes known as “in-lieu-of” requirements. In some cases, the surrogate can be construed as a Similarity Parameter. Contrast with... read more
Surrogation
The concept of substituting one parameter or measure for another is introduced. The reasons for and circumstances pertinent to the practice are briefly described. read more.
That Dadgum Door
It seems that doors are not as simple as they seem. A partial assessment of associated topics is included, along with rationale for the existence of the example. read more.
Topical Analysis
A "topic" is a qualitative descriptor of an object or process answering the "what is that about?" question in regard to a piece of un-structured information. Being qualitative, they are expressed with text rather than numbers: by definition, a topic cannot have a number directly related to it. The application of that concept to the gradual rendition of order from chaos is introduced as fundamental to System Engineering practice. read more.