Rationale | Knowing and satisfying the pre-requisite constraints of a service facilitate good use of the service, such as benefiting from the indicated quality of service statements. This requirement supports decision making in terms of assessing the implication, costs and feasibility, of using the service. |
Examples/Notes | Example technical constraints: firewall, minimum bandwidth or server resources, interface language, integration pattern, protocol and communication ports. Example: For a publication service where the subscription mechanism is not based on a capability of the service itself, stakeholders need to understand how they can subscribe (e.g. using electronic form, email, etc). |