Importantly, one of the first steps is to establish scope,
which then assists with complexity by partitioning the domain.
Ould (1995) provides limited direction regarding scope, but
key dimensions to consider are vertical division (by organisational
unit) or horizontal division (by cross-organisational
process), with decisions determined by organisational priorities
and dependent relationships (and possibly pragmatism). A further
dimension is the degree of granularity required, discussed
below.