  By incorporating aspects of coordination and collaboration, workflow
implementations of information systems require a sound conceptualisation of
\EM{business processing} semantics. Traditionally, the success of conceptual
modelling techniques has depended largely on the adequacy of conceptualisation,
expressive power, comprehensibility and formal foundation. An equally important
requirement, particularly with the increased conceptualisation of business
aspects, is \EM{business suitability}. In this paper, the focus is on the
business suitability of workflow modelling for a commonly encountered class of
(operational) business processing, e.g. those of insurance claims, bank loans
and land conveyancing. A general assessment is first conducted on some
\EM{integrated} techniques characterising well-known paradigms - structured
process modelling, object-oriented modelling, behavioural process modelling and
business-oriented modelling. Through this, an insight into business suitability
within the broader perspective of technique adequacy, is gained. A specific
business suitability diagnosis then follows using a particular characterisation
of business processing, i.e.\ one where the intuitive semantics and
inter-relationship of business services and business processes are nuanced. As
a result, five business suitability principles are elicited. These are proposed
for a more detailed understanding and (synthetic) development of workflow
modelling techniques. Accordingly, further insight into workflow specification
languages and workflow globalisation in open distributed architectures may also
be gained.
