| <?xml version="1.0" encoding="UTF-8"?> |
| <org.eclipse.epf.uma:TaskDescription xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:org.eclipse.epf.uma="http://www.eclipse.org/epf/uma/1.0.3/uma.ecore" epf:version="1.0.0" xmi:id="_qDRSULBKEdm7Eph_l9Cn9w" name="analyze_architecture,_0f-1oMlgEdmt3adZL5Dmdw" guid="_qDRSULBKEdm7Eph_l9Cn9w" changeDate="2007-03-03T21:37:35.140+0000" version="1.0.0"> |
| <mainDescription><p> |
| This task focuses on defining a candidate&nbsp;architecture&nbsp;that will guide&nbsp;the development, testing, and |
| operation of the system. It relies on gathering experience gained in similar systems or problem domains to constrain |
| and focus the architecture so that effort is not wasted in re-inventing architecture. |
| </p> |
| <p> |
| Capture architectural decisions in the <a class="elementLink" |
| href="./../../openup_basic/workproducts/architecture_notebook,_0XAf0MlgEdmt3adZL5Dmdw.html" |
| guid="_0XAf0MlgEdmt3adZL5Dmdw">Architecture Notebook</a>. Make sure that this is communicated across the team. |
| </p></mainDescription> |
| <keyConsiderations><p> |
| This task&nbsp;is most beneficial when developing new and unprecedented systems. In systems where there is already a |
| well-defined architecture, this task might be omitted, or performed quickly as a&nbsp;review of the existing |
| architecture. |
| </p> |
| <p> |
| It is critical that this task is performed collaboratively with active involvement of other team members and project |
| stakeholders so that consensus and common understanding is reached. It is particularly vital for the architect to |
| involve the developer(s) throughout this task. The architecture effort&nbsp;is about providing leadership and |
| coordination of the technical work rather than putting in a solo performance. |
| </p></keyConsiderations> |
| <sections xmi:id="_3nMQQA3rEduibvKwrGxWxA" name="Identify architectural goals" guid="_3nMQQA3rEduibvKwrGxWxA"> |
| <sectionDescription><p> |
| Describe the goals of the architecture by examining the product <a class="elementLink" |
| href="./../../openup_basic/guidances/checklists/vision,_0WoFUMlgEdmt3adZL5Dmdw.html" |
| guid="_0WoFUMlgEdmt3adZL5Dmdw">Vision</a>&nbsp;and requirements, including architecturally significant requirements. |
| Also, talk to the project <a class="elementLink" |
| href="./../../openup_basic/roles/stakeholder,_dTa6gMAYEdqX-s4mWhkyqQ.html" |
| guid="_dTa6gMAYEdqX-s4mWhkyqQ">Stakeholder</a> and <a class="elementLink" |
| href="./../../openup_basic/roles/analyst,_0VxJsMlgEdmt3adZL5Dmdw.html" guid="_0VxJsMlgEdmt3adZL5Dmdw">Analyst</a>. |
| These goals will guide your&nbsp;approach to important architectural and design decisions. |
| </p></sectionDescription> |
| </sections> |
| <sections xmi:id="_9o6Z4CSCEdqDjNgZyGMf5w" name="Identify architectural constraints" guid="_9o6Z4CSCEdqDjNgZyGMf5w"> |
| <sectionDescription><p> |
| Understand&nbsp;any constraints (or opportunities) on the solution&nbsp;that are inherent in the existing environment |
| or organization. If available, examine the <a class="elementLink" |
| href="./../../openup_basic/workproducts/supporting_requirements,_BVh9cL-CEdqb7N6KIeDL8Q.html" |
| guid="_BVh9cL-CEdqb7N6KIeDL8Q">Supporting Requirements</a>&nbsp;for any constraints that have already been |
| identified.&nbsp;Discuss any critical time and resource constraints with the <a class="elementLink" |
| href="./../../openup_basic/roles/project_manager,_0a0o0MlgEdmt3adZL5Dmdw.html" guid="_0a0o0MlgEdmt3adZL5Dmdw">Project |
| Manager</a>, as these&nbsp;will also need to be taken into account when arriving at your decisions. Discuss potential |
| constraints with the tester such as hooks for tests, and to identify architectural areas that may be difficult to test. |
| </p></sectionDescription> |
| </sections> |
| <sections xmi:id="_B899cMP2EdmWKcx6ixEiwg" name="Survey, assess, and select available assets" guid="_B899cMP2EdmWKcx6ixEiwg"> |
| <sectionDescription><p> |
| Establish the availability of any existing software assets as suitable candidates for re-use. Make sure you consult |
| with others who have knowledge of existing assets, particularly the&nbsp;<a class="elementLink" |
| href="./../../openup_basic/roles/developer,_0YDosMlgEdmt3adZL5Dmdw.html" |
| guid="_0YDosMlgEdmt3adZL5Dmdw">Developer</a>(s) and other&nbsp;people outside the project team (such as production |
| support teams) in order to form a balanced view of the suitability of existing assets for re-use. Identifying reusable |
| assets could be done as a team brainstorming session. |
| </p></sectionDescription> |
| </sections> |
| <sections xmi:id="_FVrlsMP2EdmWKcx6ixEiwg" name="Define approach for structuring the system" guid="_FVrlsMP2EdmWKcx6ixEiwg"> |
| <sectionDescription><p> |
| Decide how to structure&nbsp;the software, both in logical and physical terms. As a minimum, decide on: |
| </p> |
| <ul> |
| <li> |
| How to partition the software when managing development |
| </li> |
| <li> |
| How the software will be composed at run time. |
| </li> |
| </ul> |
| <p> |
| For each software partition, briefly describe |
| </p> |
| <ul> |
| <li> |
| Their name and purpose. |
| </li> |
| <li> |
| Their relationships to other partitions. |
| </li> |
| </ul> |
| <p> |
| These decisions will form the basis for structuring the <a class="elementLink" |
| href="./../../openup_basic/workproducts/design,_0WuL8slgEdmt3adZL5Dmdw.html" |
| guid="_0WuL8slgEdmt3adZL5Dmdw">Design</a>&nbsp;and the <a class="elementLink" |
| href="./../../openup_basic/workproducts/build,_0YuXEMlgEdmt3adZL5Dmdw.html" guid="_0YuXEMlgEdmt3adZL5Dmdw">Build</a>. |
| </p></sectionDescription> |
| </sections> |
| <sections xmi:id="_tmvWwE5cEducxZ_XZXh-vw" name="Define approach for deploying the system" guid="_tmvWwE5cEducxZ_XZXh-vw"> |
| <sectionDescription>Outline how the software will deploy over the nodes on the network. Work with stakeholders such as as network support and |
| deployment&nbsp;teams to ensure that the proposed approach is a good fit for the wider technical environment.</sectionDescription> |
| </sections> |
| <sections xmi:id="_I32E4MP2EdmWKcx6ixEiwg" name="Identify key abstractions" guid="_I32E4MP2EdmWKcx6ixEiwg"> |
| <sectionDescription><p> |
| Identify the key abstractions that the system needs to handle. You can usually find these by looking for nouns that the |
| requirements emphasize or repeat, because they help identify what is important to the business. The <a |
| class="elementLink" href="./../../openup_basic/workproducts/glossary,_Wn7HcNcEEdqz_d2XWoVt6Q.html" |
| guid="_Wn7HcNcEEdqz_d2XWoVt6Q">Glossary</a> is particularly useful for this. Work with the analyst and stakeholder |
| here, as they will have knowledge and materials that are relevant to this step. Work with the developer to identify key |
| abstractions internal to the system. |
| </p></sectionDescription> |
| </sections> |
| <sections xmi:id="_KBAsYMP2EdmWKcx6ixEiwg" name="Identify architectural mechanisms" guid="_KBAsYMP2EdmWKcx6ixEiwg"> |
| <sectionDescription><p> |
| Catalog the architectural mechanisms that are necessary to fulfil the requirements. At this stage, it only |
| necessary&nbsp;to capture&nbsp;a relatively small amount of detail for each mechanism. Discuss the requirements |
| (especially&nbsp;<a class="elementLinkWithUserText" |
| href="./../../openup_basic/workproducts/supporting_requirements,_BVh9cL-CEdqb7N6KIeDL8Q.html" |
| guid="_BVh9cL-CEdqb7N6KIeDL8Q">Supporting Requirements</a>) that are being addressed by each&nbsp;mechanisms with the |
| analysts and stakeholders to make sure that the requirements are&nbsp;unambiguous and well understood. |
| </p></sectionDescription> |
| </sections> |
| <sections xmi:id="_xTdYACGAEdqk6N_Ot_YEvA" name="Capture architectural decisions" guid="_xTdYACGAEdqk6N_Ot_YEvA"> |
| <sectionDescription><p> |
| Capture&nbsp;important decisions&nbsp;about the architecture for future reference. Consider using the templates |
| provided for the <a class="elementLink" |
| href="./../../openup_basic/workproducts/architecture_notebook,_0XAf0MlgEdmt3adZL5Dmdw.html" |
| guid="_0XAf0MlgEdmt3adZL5Dmdw">Architecture Notebook</a>. |
| </p></sectionDescription> |
| </sections> |
| <purpose>To provide sufficient guidance and direction for the team to be able to perform analysis and design&nbsp;in consistent and |
| coherent ways.</purpose> |
| </org.eclipse.epf.uma:TaskDescription> |
