IBM SOA Fundamentals [2008] Set 3

Inheritance ✘ Encapsulation ✘ Cross-cutting concern ✘ Focus on messaging strategies ✔

Service implementations can be changed without changing the consumers. Services are compatible across technologies. Services can change location without affecting clients. Services provide an interface according to a SOAP file. Services can be stopped without disruption to the consumer.

Storage of service metadata ✘ Storage for versions of service components ✘ The medium for messaging in a standardized way ✘ The means by which services are loosely coupled ✔ A source of information about invoking a service ✔

Test suites for Web services interoperability ✘ An implementation of interoperable Web services ✘ Interoperability guidance for Web services specifications ✘ A certification of interoperability for Web services engines ✔

Services often represent functions in an SOA. ✘ Existing applications may serve as the basis for service interfaces. ✘ The interface of a service allows it to be integrated into additional processes without changes. ✘ Service interface details may be defined at a high level according to anticipated businessrequirements. ✔

One that is structured around localized business representatives for the IT team(s). ✘ One in which the departments are small, geographically centralized, and provide many goodsandservices. ✘ One that is relatively large, geographically dispersed, and with a centralized management andfundingstructure. ✘ One in which the funding, management and control of IT resources are spread amongmultiplestakeholders in different parts of the organization. ✔

Rogue Service ✘ Duplicate Service ✘ Shelfware Service ✘ Composite Application Service ✔

It must manage service distribution and rights management. ✘ It must enforce communication between stakeholders and subject matter experts. ✘ It must enforce coordination between service providers across the organization. ✘ It must coordinate communication of business requirements to development organizationsduring theplanning phase. ✔

Firewalls or routers are the mechanisms for securing an SOA business environment. Security policy decisions are made and carried out within an Enterprise Service Bus (ESB). Identities exist for both users and services, and both must be subject to the same controls. The creation of roles for business process task lists are used to prevent business partneraccess toprotected assets. There is a need to manage identity and security across a range of systems and services thatareimplemented in a diverse mix of new and old technologies.

Meeting Service Level Agreements (SLAs) for Gold customers ✘ Assigning premiere customers to the Gold customer status ✘ Identifying an incoming request as coming from a Gold customer ✘ Changing a business process to provide enhanced capabilities for Gold customers ✔