Overview |  | Roles |  | Work Items |  | Views |  | Index |  | Glossary |

Project Portal
| ### Next Steps Develop Performance Model Identify Risk Divide Quality of Service Requirements into Tasks |
| Activity: Write Quality of Service Requirement
Business Analyst
|  |  |  | Create a Quality of Service Requirement |  |
|  | Participating Roles Responsible: Business Analyst
### Overview Quality of service requirements are used to capture non-functional requirements or constraints on the functionality of the system. Quality of service requirements must be precise and not subjective in their definition. The description must provide enough information that a developer can design and code functionality that meets the quality of service requirement. # Entry Criteria Dependencies: The quality of service requirement has been scheduled for prototyping or implementation in the next iteration. # Sub-Activities
1 | Document the Quality of Service Requirement | Add a description of the quality of service requirement in the description field of the quality of service requirement work item. Use the following language template when developing the quality of service requirements, <context>, <stimulus>, <response>. Be sure that the quality of service requirement is testable and leave design to the architects and developers. If the brief description is not sufficient for complete understanding, write a more detailed form, providing goals and rationale. Clarify an vague or ambiguous areas of the requirement.
2 | Attach Supporting Information | Attach any scenarios that are affected by the quality of service requirement if applicable. If the quality of service requirement affects all of the scenarios or a majority of them, simply note this rather than attaching very large numbers of scenarios. Attach any supporting documents such as storyboards if needed.
# Exit Criteria
| The reviewed quality of service requirement captures the constraint on the system and can be implemented by the development team and tested by the test team.
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