For many years I have observed lots of confusion with some basic definitions
such as IT and Enterprise Architecture among other terms. I will not try to
define the meaning of Enterprise Architecture by myself (despite I have my
own view on this) as this is something being right now redefined by the Open
Group (which by the way used to call their events “IT Architecture
Practitioner Conference” and changed only recently to “Enterprise
Architecture Practitioner Conference”).
Looking at job definitions related to Architecture positions, I have also
identified a clear misunderstanding of “who is supposed to be doing
what…”. In addition to that, I’m frequently asked “what’s the
difference between an Enterprise Architect and an IT Architect”.
First, let’s assume that everyone agrees on the fact that Enterprise
-Information Archit... (more)
The TOGAF 9.1 Metamodel has a box that is in the center of the diagram
called: Business Services”. Quite often I’m asked: what do we mean by
“business services”? Looking at the specification and the definition, we
find the following definition: “Supports business capabilities through an
explicitly defined interface and is explicitly governed by an
Right, we understand that business capabilities help us to identify what are
the services that the business needs with a certain level of granularity, to
enable business agility, to be implemented by IT but it does not re... (more)
Governance is currently a key topic for many IT functions. Its definition
varies, but its key themes are true for all companies: effectiveness,
efficiency, and reliability. Business value and risk mitigation are also at
its center and represent a significant part of enterprise governance overall.
Due to the horizontal nature of IT, where almost everyone in the enterprise
uses IT assets to complete their responsibilities, the impact of effective IT
governance is quite visible throughout an organization.
IT governance defines a structure of relationships, processes, and
When introducing Enterprise Architecture as a program or initiative, it is
regularly done from an IT perspective rarely considering what the costs will
be and if there will be any return on investment. This presents a particular
challenge to Enterprise Architecture.
Generally speaking, IT departments have all sorts of criteria to justify
projects and measure their performance. They use measurements and metrics,
KPIs. Going to the solution level, they commonly use indicators such as
percentage uptime for systems from the System Management team, error rates
for applications from th... (more)
Service-oriented architecture (SOA) has at times been challenged but is now
on the verge of mainstream acceptance. It now shows maturity, success and
even signs of popularity. Service Oriented Architecture (SOA) is an
enterprise scale architecture for linking resources as needed. These
resources are represented as business-aligned services which can participate
and be composed in a set of choreographed processes to fulfil business needs.
The primary structuring element for SOA applications is a service as distinct
from subsystems, systems, or components. A service is an autonomous ... (more)