1. A method for a service-oriented architecture (SOA) system which provides service offerings categorized according to service categories using a taxonomy, comprising: receiving, by a processor, in a specification field, a formal definition of a service, the formal definition is for inclusion to define one of service offerings of the SOA system; determining, by the processor, a current grammar which is currently in effect as a specification-requirement of acceptable definitions for a service category in which the service is categorized according to a taxonomy of the SOA system, the current grammar being a common grammar, determining, by the processor, whether the formal definition in the specification field is acceptable, by adhering to the current grammar determined to be currently in effect as the specification-requirement for the category of the service; when the formal definition in the specification field is determined to be acceptable according to the current grammar: accepting, by the processor, automatically without manual intervention, in response to determining that the formal definition is acceptable, for inclusion to define the service in the SOA system, the formal definition in the specification field for the service; modifying, by the processor, automatically without manual intervention, in response to determining that the formal definition is acceptable, the current grammar for the taxonomy of the SOA system to provide an updated grammar for the SOA system in which the formal definition of the service that was received in the specification field is now categorized in the service category; and using, by the processor, in governance of the SOA, the updated grammar as the current grammar which defines service offerings of the SOA system in which the formal definition of the service that was received in the specification field is now categorized in the service category; and when the formal definition is determined to be not acceptable according to the current grammar: rejecting, by the processor, automatically without manual intervention, in response to determining that the formal definition is not acceptable, for the service offerings of the SOA system, the formal definition in the specification field for the service.
1. A method for a service-oriented architecture (SOA) system which provides service offerings categorized according to service categories using a taxonomy, comprising: receiving, by a processor, in a specification field, a formal definition of a service, the formal definition is for inclusion to define one of service offerings of the SOA system; determining, by the processor, a current grammar which is currently in effect as a specification-requirement of acceptable definitions for a service category in which the service is categorized according to a taxonomy of the SOA system, the current grammar being a common grammar, determining, by the processor, whether the formal definition in the specification field is acceptable, by adhering to the current grammar determined to be currently in effect as the specification-requirement for the category of the service; when the formal definition in the specification field is determined to be acceptable according to the current grammar: accepting, by the processor, automatically without manual intervention, in response to determining that the formal definition is acceptable, for inclusion to define the service in the SOA system, the formal definition in the specification field for the service; modifying, by the processor, automatically without manual intervention, in response to determining that the formal definition is acceptable, the current grammar for the taxonomy of the SOA system to provide an updated grammar for the SOA system in which the formal definition of the service that was received in the specification field is now categorized in the service category; and using, by the processor, in governance of the SOA, the updated grammar as the current grammar which defines service offerings of the SOA system in which the formal definition of the service that was received in the specification field is now categorized in the service category; and when the formal definition is determined to be not acceptable according to the current grammar: rejecting, by the processor, automatically without manual intervention, in response to determining that the formal definition is not acceptable, for the service offerings of the SOA system, the formal definition in the specification field for the service. 5. The method of claim 1 , further comprising modifying, by the processor, the current grammar to provide an updated grammar; storing, by the processor, in the SOA system, the updated grammar to use as the current grammar for the service; and evaluating, by the processor, for the service, the formal definition, which was acceptable under a previous grammar, according to the current grammar which is now updated.