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| <mainDescription><p> |
| Attributes are a very important source of requirements information. Just as every person has attributes (age, hair |
| color, gender), each requirement has a source, a relative importance, and time it was created. Attributes do more than |
| simply clarify a&nbsp;requirement.&nbsp; If created properly, they can yield significant information about the state of |
| the system. Just as you can run a database query to find all men with brown hair over age 30, given our human example, |
| you can run queries on the status of requirements to find&nbsp;all high-priority requirements from the customer in the |
| last 30 days. <a class="" href="./../../../openup_basic/guidances/supportingmaterials/references,_9ToeIB83Edqsvps02rpOOg.html" guid="_9ToeIB83Edqsvps02rpOOg">[TEL06]</a> |
| </p> |
| <h4> |
| Examples of attributes |
| </h4> |
| <p> |
| Listed below is a partial list of some common attributes and a brief description of their meaning. Some attributes are |
| best described as a number, date, Boolean (true or false) or a text field for entering free format comments. Other |
| attributes can be expressed as lists. For instance, priority type is a list of high, medium, and low; Weekday is a list |
| which includes Monday, Tuesday, and so on. |
| </p> |
| <p> |
| <em>Source</em> - Person, document or other origin of a given requirement.&nbsp; This is&nbsp;useful&nbsp;for |
| determining whom to call for questions or for grouping&nbsp;requirements according to the person making the demands. |
| </p> |
| <p> |
| <em>Priority</em> - Statement of relative importance of the requirement, either to the system (mandatory, critical, |
| optional) or to other requirements (high, medium, low). It is good to track the mandatory or high-priority |
| items&nbsp;as an indication of how well the system will meet the greatest needs or for compliance-related metrics. |
| </p> |
| <p> |
| <em>Assigned to</em> - Who in the organization is responsible for making sure the requirement is met (person's name or |
| organizational name). |
| </p> |
| <p> |
| <em>Comments</em> - Reviewer's or writer's comments on a requirement. |
| </p> |
| <p> |
| <em>Difficulty</em> - An indication of the level of effort needed or how hard it will be to implement the requirement |
| (high, medium, low). |
| </p> |
| <p> |
| <em>Status</em> - Degree of completeness (completed, partial, not started). |
| </p> |
| <p> |
| <em>Risk</em> - Confidence measure on the likelihood of meeting (or not meeting) a requirement. Could be high, medium, |
| low or the integers one through ten. |
| </p> |
| <p> |
| <em>Due By</em> - Date the requirement must be provided. |
| </p> |
| <p> |
| <em>Method of verification</em> - Qualification type to be used to verify that a requirement has been met: analysis, |
| demonstration, inspection, test, and walkthrough. |
| </p> |
| <p> |
| <em>Level of Test</em> - Describes the verification lifecycle stage at which the requirement is determined to be met: |
| unit test, component, system or product. |
| </p> |
| <p> |
| <em>Subsystem Allocation</em> - Name of system or subsystem a requirement is to be assigned to (for instance, flight |
| control module, wing assembly, passenger cabin). |
| </p> |
| <p> |
| <em>Test Number</em> - Identification of a specific test or other method of verification. |
| </p> |
| <br /> |
| <br /></mainDescription> |
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