Information Technology Reference
In-Depth Information
At last, the indicators that will allow the en-
terprise management to follow up the evolution
of the fulfilment of the strategic objectives shall
be defined.
Business Architecture : It considers the
execution of a business strategy based
on business processes where the behav-
iour and the structure of the elements are
represented;
Information Architecture : It considers
the passive objects (informational entities)
that the organisation needs to carry out its
job as set up in the business processes and
it facilitates an abstraction of the informa-
tion needs of the organisation regardless
the technology;
Applications Architecture : It considers
the description of the applications which
facilitate the management of the infor-
mational entities supporting the business
processes;
Technology Architecture: It considers the
Technologies behind the implementation
of the applications set up and the commu-
nications easiness necessary to the support
of the business architecture.
enterprise Architecture
Considering the Engineering concept, model is a
generalisation that identifies and represents the
elements of an organisation with the necessary
detail to the end it seeks (ANSI, 2007.). For the
organisations we have an area of knowledge - the
Organisational Engineering - that is focused in this
subject and is based on the following assumptions
(Liles D. H., 1996):
A organisation is understood as a complex
system;
Engineering may be used in the under-
standing process of an organisation;
As a system an organisation may be de-
composed into subsystems;
Engineering may be used in the process of
transforming the organisation.
The description of the organisation through
architecture (Figure 4) having as base the modula-
tion intends to permit the analysis of the subjects
related to the alignment and its deviation among
the referred to elements: organisation; business;
information; application and technology.
An architecture where large deviations from
alignments are verified damages directly the
comprehension of the organisation. An architec-
ture with a strong alignment may contribute to an
incentive to the collection of knowledge namely
under the form of structured and semi-structured
documents described in the models.
As primitives of the activities modulation
within an organisation the following concepts
and their relationships are considered (Lankhorst,
M. et al, 2005):
Based on this pretexts it is possible to model,
design and implement an organisational architec-
ture. The modulation supplies the means by which
it is possible to focus the most important elements
for the problem object of study within the organisa-
tion. The design is the mean by which is described
how an organisation must be. The implementation
permits the materialization of what was defined
in the design phase (Zachman, 1997).
The elements that integrate the architecture
model for an organisation are: (Sousa e al., 2005):
Organisational Architecture : It considers
aspects related to the definition of business
strategies, its processes and functional re-
quirements, such as: mission, vision, pur-
pose and structure of the organisation;
Information Represents something that
exists within the organisation. In general it
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