I have had some major issues with IT Architects
over the years and the many prolific and useless dissertations they produce
that are usually of little real value or practical use to senior IT managers
responsible for day-to-day operations. That does not mean that I don't
appreciate the need for a good, practical IT architectural blueprint or roadmap
that will help one make better decisions about the technology to acquire and
implement to best meet the operational business needs of the organization for
the future. What follows is a high level management introduction to 'Open' IT
Architecture for those who are new to this whole arena.
Information Technology (IT) Architecture
A sound IT Architectural roadmap should produce a detailed
blueprint for the future that addresses the following areas: business
activities and processes; the flow of information; needed data sets; software
tools and applications; hardware platforms; telecommunications infrastructure;
and other key information technologies that your organization ought to acquire
and implement to successfully carry out its mission.
There are several popular architectural processes that have
emerged over time such as the TOGAF
Framework, DoD Architectural
Framework (DODAF), and the Zachman Framework. My
favorite, though, is the MITA
Framework. In general, these architectural frameworks provide guidelines
for the creation of a roadmap that ought to contain the following key sections:
- The Business Architecture (BA) section of your IT Architecture roadmap ought to present a collectively agreed upon vision for the future of your business organization, e.g. clinic, hospital.
- The Information Architecture (IA) section should identify the major types of information systems needed to support the business functions of the organization.
- The Technical Architecture (TA) section should describe current and planned technical services, their connectivity, and standards that the organization should use when they plan and specify new IT systems to be acquired and implemented.
When you start the process of developing the IT
Architectural roadmap for your organization, one ought to start with a vision
of what you are trying to accomplish - a list of specific objectives. For
example, primary objectives of the IT Architectural
process might include:
- Align information requirements with the organization's business plans
- Continually strive to improve overall business and information system effectiveness
- Lower overall system life-cycle costs, while constantly innovating and enhancing systems
- Enable interoperability and data sharing between key internal and external systems
The IT Architecture roadmap you produce should address both
the "as is" and "to be" business,
information, and technical architectures for your organization. How do you go
about doing this? Take a snapshot of your existing IT capabilities. Then
identify key IT architecture and standards you believe ought to be put into
place. Identify gaps between the existing IT architecture and the planned
architecture. After you finalize the agreed upon targeted IT architecture, put
together a migration plan to acquire and implement the new architecture over
time. Remember, as your organization begins to implement the planned
architecture and starts the migration process, make sure to regularly review
and track progress and make needed changes to the IT architecture when
necessary.
Also, remember, the organization's IT Architecture ought to
be reviewed, documented and updated regularly - if it is to become an effective
management tool. However, the level of detail can vary greatly. Some
organizations' architecture documents approach the size of a small set of
encyclopedias which generally don't get read and end up sitting on the shelf.
Others are much more compact. I advise being concise and providing specific,
practical guidance that can be readily understood and used by your IT managers
and staff.
'Open' IT Architecture
'Open architecture'
strives to allow for the adding, upgrading and swapping hardware and software
components from a wide range of products and solution providers. Key
concepts for ensuring an open architecture are being standards-based and vendor
neutral. In a 'closed architecture', the hardware or software vendor
usually locks you into a limited set of proprietary components, primarily
limited to their product line. In most circumstances, organizations should
seriously consider going with an 'open' architecture approach.
Other characteristics related to an 'open architecture' and
environment include:
- Allowing for no single developer or vendor to have control over your future.
- Any privately designed architectures and specifications should be made public
- Allowing improvements to the architecture or technology to be made by key players, without obtaining permission from a vendor.
- Any open architecture ought to ensure that systems are interoperable and that applications are readily portable.
- There should be a heavy emphasis placed on collaboration and sharing during the development of the IT architectural roadmap.
Finally, it has been found that an 'open architecture'
evolves and matures faster through the input of multiple developers and vendors
within an open source software development community. Open architecture
also tends to help generate more competition in the marketplace, thereby
promoting technical innovation and helping to lower systems development costs.
Key Links to IT Architecture & Standards
The following are selected links to some of the major
collaborative organizations, projects, and activities focused in varying
degrees on IT Architecture, Standards, and 'Open Education'.
Finally, here's a short list of other articles, reports, and
papers on collaborative, 'open source' IT architecture and standards you might
want to read include:
- The Architecture of Open Source Applications
- An Architecture of Participation
- IT Architecture for Dummies
Send us your comments and share any links to other useful IT
architecture web sites and organizations we ought to all know about. Especially
if it relates to the the Education arena.
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