Information Technology Reference
In-Depth Information
1. Identify the communities with which the system is involved, their objec-
tives and the roles involved in them.
2. Identify the enterprise objects within each community.
3. Define the behaviour required to fulfil the objectives of the communities.
This may be in the form of processes, their constituent actions and the
community roles or local enterprise objects performing them.
4. Define any constraints on the way roles can be filled by enterprise ob-
jects.
5. Identify the policies that govern the behaviour.
6. Identify any behaviours that may change the rules that govern the sys-
tem, and the policies that govern such behaviours (changes in the struc-
ture, behaviour or policies of a community can occur only if the specifi-
cation includes some behaviour that can cause those changes).
7. Identify the actions that involve accountability of the different parties,
and the possible delegations.
8. Identify any behaviour that may change the structure or the membership
of each community during its lifetime, and the policies that govern such
behaviour.
Of course, the order of these activities need not necessarily be linear, and
not all activities will be appropriate in all modelling situations.
Alex held open the swing door, with its engraved glass panel decorated
with climbing plants | hops, he supposed | and Eleanor walked past him
into the bar, her three-quarter length dark tan jacket speckled with rain. It
had been a long session struggling with their enterprise model, and they were
both in need of a break. They took their drinks to a corner table. The place
was in traditional city style, divided into small bays by plush bench seats,
upholstered using small brass tacks, and with backs rising to form shoulder
height screens of machine-turned wooden columns finished in a heavy light-
devouring varnish.
\Here's to modelling," she said, sipping her Shiraz, \although I still don't
see how all this organizational stu is really going to help us build the systems."
He sighed. \How long have you been in this business?" \About ten years,
and before that ve as an analyst." \Well then, were the systems you started on
giving the same support we are aiming for today?" She thought briey. \No,
they were pretty basic separate applications; what we do now is much better
integrated." \And you must agree that trend will continue." She nodded, the
light glinting from the jewelled lizard that was frozen climbing the contour of
