7.2: Modifications
Continue to Consider Proposals for EA Modifications Other Information:
While the enforcement process helps to ensure that the EA guidance is followed, it is unreasonable to assume that new business
priorities and technologies, funding issues, or project challenges will not require modification to the plans, baselines,
and products incorporated in the EA. Emerging technologies continue to necessitate changes to the enterprise. Many of the
considerations for changes to the EA are the same considerations that needed to be addressed during its development. Also,
the architectural principles need to be continuously addressed. Proposals for modifying the architecture should address the
following questions among others: • How does the proposed modification support the organization in exploiting IT to increase
the effectiveness of its organizational components? • How does it impact information sharing and interoperability among organizational
components? • What are the security implications? For example, will the modifications need certification of enhanced systems?
• Does the proposed modification use proven technologies and conforming COTS products to satisfy requirements and deliver
IT services? Are these technologies and related standards in the industry mainstream, thereby reducing the risk of premature
obsolescence? • Does the acceptance of this proposal position other standards or products for obsolescence? If so, identify
them. • What is the impact on the organization and sub-organizations if the proposal is not accepted? What is the result of
the cost-benefit analysis? • What external organizations or systems will be affected? What action will they have to take?
• What is the estimated overall programmatic cost of the proposed changes including changes to the EA and/or redirection of
dependent projects? • What alternatives have been considered and why were they not recommended? • What testing, and by whom,
should be completed for implementations that will result from acceptance of the proposal? • What is the recommendation of
the enterprise change control board? Proposals requesting modifications to the EA need to explicitly address these issues.
The proposal should be presented to and reviewed by the TRC (for review by architectural team and SMEs) and passed to the
EAESC with a recommendation. In cases where the EAESC cannot reach a consensus, a working group may be tasked to investigate
and propose recommended actions.
Indicator(s):
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