
\section{Facets}\label{atap:Facets}

\begynd
\pind In this section we shall briefly overview the concept of facets.
\begynd
\pind By a \textsl{domain facet} we shall understand one amongst a finite set of generic ways of analyzing
a domain: a view of the domain, such that the different facets cover conceptually different
views, and such that these views together cover the domain.
\afslut

\pind We leave it to \cite[\textsl{Chapter 8, pages
      205--240}]{BjornerMonograph2020} to detail the principles,
      procedures, 
      techniques and tool for describing facets.
\afslut

These are the facets that we have so far identified:

\begin{multicols}{2} 
\begin{itemize}
\item intrinsics
\item support technology
\item rules \& regulations
\item scripts
\item license languages
\item management \& organization
\item human behaviour
\end{itemize}
\end{multicols}

\subsection{Intrinsics}

By domain intrinsics we shall understand those \textsl{phenomena and concepts} of a domain
\textsl{which are basic} to any of the other facets, with such domain
intrinsics initially covering at least one specific, hence named, 
stakeholder view.

\subsection{Support Technology}

By a domain support technology we shall understand ways and means of \textsl{implementing}
certain observed phenomena or certain conceived concepts.

\subsection{Rules \& Regulations}

\begin{itemize}
\item By a \textsl{domain rule} we shall understand some text (in the domain) which prescribes how
people or equipment are expected to behave when dispatching their duties, respectively
when performing their functions.


\item By a \textsl{domain regulation} we shall understand some text (in the domain) which prescribes
what remedial actions are to be taken when it is decided that a rule has not been followed
according to its intention.

\end{itemize}

\subsection{Scripts}
 
By a domain script we shall understand the structured, almost, if not outright, formally
expressed, wording of a procedure on how to proceed, one that has legally binding power,
that is, which may be contested in a court of law.

A special ``subclass'' of scripts are those of commands.

\begynd
\pind \textsl{Commands} are syntactic entities. 
\begynd
\pind Semantically they denote state changes.
\pind The state referred to is the state of the domain.
\pind Domain facets, as a wider concept than just commands, were first
      treated in \cite[\textsl{Chapter 8}]{infra:Monograph2021} which  places facets in
      the wider context of domain modeling.
\pind Commands are but just one of the many kinds of script facets.
\afslut

\begynd
\pind Commands are defined syntactically, 
\pind and given semantics in the definition of perdurant behaviours,
\pind one set of simple actions per command.
\afslut

\subsection{License Languages}

A \textsl{license} is a right or permission
granted in accordance with law
by a competent authority
to engage in some business or occupation,
to do some act, or to engage in some transaction
which but for such license would be unlawful.

A \textsl{license language} is a [``small''] language (with syntax,
semantics and pragmatics) in which to describe licenses.

\subsection{Management \& Organization}

\begin{itemize}
  
\item By domain management we shall understand such people (such decisions) (i) who
(which) determine, formulate and thus set standards (cf. rules and regulations, Sect. 8.4 )
concerning strategic, tactical and operational decisions; (ii) who
ensure that these decisions are passed on to (lower) levels of
management and to floor staff; (iii) who make 
sure that such orders, as they were, are indeed carried out; (iv) who handle undesirable
deviations in the carrying out of these orders cum decisions; and (v) who ``backstops''
complaints from lower management levels and from ``floor'' staff.

\item By domain organization we shall understand (vi) the structuring of management and
non-management staff ``oversee-able'' into clusters with ``tight'' and ``meaningful'' relations;
(vii) the allocation of strategic, tactical and operational concerns to within management
and non-management staff clusters; and hence (viii) the ``lines of command'': who does
what, and who reports to whom, administratively and functionally.
\end{itemize}

\subsection{Human Behaviour}

By domain human behaviour we shall understand any of a quality spectrum of carrying
out assigned work: from (i) careful, diligent and accurate, via (ii) sloppy dispatch, and (iii)
delinquent work, to (iv) outright criminal pursuit.
 
%%  LocalWords:  Intrinsics intrinsics deci sions amongst
