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| <mainDescription><p>
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| The purpose of this phase is to establish the baseline of the architecture of the system and provide a stable basis for
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| the bulk of the&nbsp;development effort in the next phase.
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| </p>
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| <p>
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| There are objectives for the Elaboration phase that help you address risks associated with requirements, architecture,
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| costs, and schedule <a class="elementlinkwithusertext"
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| href="./../../../core.mgmt.common.base/guidances/supportingmaterials/references.mgmt_D80619F3.html#KRO03"
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| guid="_JlTPUM6aEdyuBO4ZIzcyig">[KRO03]</a>:
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| </p>
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| <ul>
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| <li>
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| <p>
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| <strong>Get a more detailed understanding of the requirements.</strong> Having a good understanding of the
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| majority of requirements enables you to create a more detailed plan and to get buy-in from stakeholders. Be
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| sure to gain an in-depth understanding of the most critical requirements to be validated by&nbsp;the
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| architecture.
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| </p>
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| </li>
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| <li>
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| <p>
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| <strong>Design, implement, validate, and establish the baseline for the architecture.</strong> Design,
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| implement, and test a skeleton structure of the system. Although the functionality is not complete yet, most of
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| the interfaces between the building blocks are implemented and tested. This is referred to <i>an</i>
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| <i>executable architecture</i>.
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| </p>
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| </li>
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| <li>
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| <p>
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| <strong>Mitigate essential risks, and produce accurate schedule and cost estimates.</strong> Many technical
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| risks are addressed as a result of detailing the requirements and of designing, implementing, and testing the
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| architecture. Refine and detail the high-level project plan.
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| </p>
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| </li>
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| </ul>
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| <h4>
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| Key considerations
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| </h4>
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| <p>
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| The number of iterations in the Elaboration phase is dependent on, but not limited to, factors such as green-field
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| development compared to maintenance cycle, unprecedented system compared to well-known technology and architecture, and
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| so on.
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| </p>
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| <p>
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| Typically, on the first iteration, it is better to design, implement, and test a small number of critical scenarios to
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| identify what type of architecture and architectural mechanisms you need, so you can mitigate the most crucial risks.
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| You also detail high-risk requirements that have to be addressed early in the project. You test enough to validate that
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| the architectural risks are mitigated.
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| </p>
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| <p>
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| During the subsequent iterations, you fix whatever was not right from the previous iteration. You design, implement,
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| and test the remaining architecturally significant scenarios, ensuring that you check all major areas of the system
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| (architectural coverage), so that potential risks are identified as early as possible. <a
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| class="elementlinkwithusertext"
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| href="./../../../core.tech.common.base/guidances/supportingmaterials/references.tech_6CCF393.html"
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| guid="_9ToeIB83Edqsvps02rpOOg">[KRO03]</a>
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| </p>
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| <p>
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| <br />
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| </p></mainDescription> |
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