Once something has been realized and is in production, change requests will start to come in. You learned about life cycle management of services in the previous chapter. Apart from the life cycle of services, there are other aspects to take into account when you look at the change process in an SOA. Basically, there are two major differences compared to silo architectures:
More and other types of users (service clients) need to be involved. Traditional applications cater for all the needs of a specific department. Think of a Customer Relationship Management (CRM) application. If something needs to be changed in the application, the impact of the change on sales or customer relations department is discussed. But in an SOA, services are shared by multiple departments. The back offices also use the CRM services. If something is changed, not just the sales department needs to be consulted, but all the departments that make use of the services. This includes projects that are...