1)Coupling- It is applicable on different elements of a service.pdf
- 1. 1)Coupling:- It is applicable on different elements of a service and an SOA in general and refers to the level of dependency between two or more elements.Type of coupling can be identified as the interdependency of multiple sevices and service composition. ex:One service calls an operation provided by another service ,the service is dependent on the functionality offered by the other service's operation and the services are coupled. Services that are loosely coupled have a high reusability potential and are easy to maintain.By optimizing the allocation of operations to services we can minimize coupling between services. 2)Task service:- It is direclty related to business task of process.It is modeled for specific processess to meet immediate requirements of the organization and therefore contains specific business logic.As a result task services are not generally considered agnostic and therefore have less reuse potential than other service models. To increase the amount of agnostic logic within service based on entity and utility service model is improved. As they tend to represent the end-to-end logic of a business process,these are positioned as service composition controllers,Responsible for composing other services (entity and utility) to automate their business process. Encapsulated in task service,one may provide entrally accessible functionality that is used consistently throughout the organization. for complex caluculations that have been encapsulated in libraries and business frameworkds traditionally. 3)Entity services:- These represent a business centric service with a service boundary encompasssing one or more business related entities. They often create business objects and ensure abidancy by business rules and date completeness Example of business entities include order,client ,timesheet,and invoice.
- 2. As their functional boundary is based on business entities,entity services are naturally agnostic to business processes.This allows them to be repeatedly reutilized in support of multiple tasks and business process,positioning them as highly reusable services. it would not be uncommon to label an entity service associated with the invoice business entity as the invoice service. 4)Utility services:- These are tyically business-logic agnostic and serve to provide reusable,cross-cutting functionalities related to processing data within legacy application environments.These are not related to or derived from existing business models. As a result these are commonly agnostic and reusable.Unlike task and entity services the involvement of business analysts or business subject matter experts is generally not required when modeling utility service candidates. utility services include notification,event logging,exception handling,and currrency conversion 1)Coupling:- It is applicable on different elements of a service and an SOA in general and refers to the level of dependency between two or more elements.Type of coupling can be identified as the interdependency of multiple sevices and service composition. ex:One service calls an operation provided by another service ,the service is dependent on the functionality offered by the other service's operation and the services are coupled. Services that are loosely coupled have a high reusability potential and are easy to maintain.By optimizing the allocation of operations to services we can minimize coupling between services. 2)Task service:- It is direclty related to business task of process.It is modeled for specific processess to meet immediate requirements of the organization and therefore contains specific business logic.As a result task services are not generally considered agnostic and therefore have less reuse potential than other service models. To increase the amount of agnostic logic within service based on entity and utility
- 3. service model is improved. As they tend to represent the end-to-end logic of a business process,these are positioned as service composition controllers,Responsible for composing other services (entity and utility) to automate their business process. Encapsulated in task service,one may provide entrally accessible functionality that is used consistently throughout the organization. for complex caluculations that have been encapsulated in libraries and business frameworkds traditionally. 3)Entity services:- These represent a business centric service with a service boundary encompasssing one or more business related entities. They often create business objects and ensure abidancy by business rules and date completeness Example of business entities include order,client ,timesheet,and invoice. As their functional boundary is based on business entities,entity services are naturally agnostic to business processes.This allows them to be repeatedly reutilized in support of multiple tasks and business process,positioning them as highly reusable services. it would not be uncommon to label an entity service associated with the invoice business entity as the invoice service. 4)Utility services:- These are tyically business-logic agnostic and serve to provide reusable,cross-cutting functionalities related to processing data within legacy application environments.These are not related to or derived from existing business models. As a result these are commonly agnostic and reusable.Unlike task and entity services the involvement of business analysts or business subject matter experts is generally not required when modeling utility service candidates. utility services include notification,event logging,exception handling,and currrency conversion
- 4. Solution 1)Coupling:- It is applicable on different elements of a service and an SOA in general and refers to the level of dependency between two or more elements.Type of coupling can be identified as the interdependency of multiple sevices and service composition. ex:One service calls an operation provided by another service ,the service is dependent on the functionality offered by the other service's operation and the services are coupled. Services that are loosely coupled have a high reusability potential and are easy to maintain.By optimizing the allocation of operations to services we can minimize coupling between services. 2)Task service:- It is direclty related to business task of process.It is modeled for specific processess to meet immediate requirements of the organization and therefore contains specific business logic.As a result task services are not generally considered agnostic and therefore have less reuse potential than other service models. To increase the amount of agnostic logic within service based on entity and utility service model is improved. As they tend to represent the end-to-end logic of a business process,these are positioned as service composition controllers,Responsible for composing other services (entity and utility) to automate their business process. Encapsulated in task service,one may provide entrally accessible functionality that is used consistently throughout the organization. for complex caluculations that have been encapsulated in libraries and business frameworkds traditionally. 3)Entity services:- These represent a business centric service with a service boundary encompasssing one or more business related entities. They often create business objects and ensure abidancy by business rules and date completeness
- 5. Example of business entities include order,client ,timesheet,and invoice. As their functional boundary is based on business entities,entity services are naturally agnostic to business processes.This allows them to be repeatedly reutilized in support of multiple tasks and business process,positioning them as highly reusable services. it would not be uncommon to label an entity service associated with the invoice business entity as the invoice service. 4)Utility services:- These are tyically business-logic agnostic and serve to provide reusable,cross-cutting functionalities related to processing data within legacy application environments.These are not related to or derived from existing business models. As a result these are commonly agnostic and reusable.Unlike task and entity services the involvement of business analysts or business subject matter experts is generally not required when modeling utility service candidates. utility services include notification,event logging,exception handling,and currrency conversion 1)Coupling:- It is applicable on different elements of a service and an SOA in general and refers to the level of dependency between two or more elements.Type of coupling can be identified as the interdependency of multiple sevices and service composition. ex:One service calls an operation provided by another service ,the service is dependent on the functionality offered by the other service's operation and the services are coupled. Services that are loosely coupled have a high reusability potential and are easy to maintain.By optimizing the allocation of operations to services we can minimize coupling between services. 2)Task service:- It is direclty related to business task of process.It is modeled for specific processess to meet immediate requirements of the organization and therefore contains specific business logic.As a result task services are not generally considered agnostic and therefore have less reuse potential than other service models.
- 6. To increase the amount of agnostic logic within service based on entity and utility service model is improved. As they tend to represent the end-to-end logic of a business process,these are positioned as service composition controllers,Responsible for composing other services (entity and utility) to automate their business process. Encapsulated in task service,one may provide entrally accessible functionality that is used consistently throughout the organization. for complex caluculations that have been encapsulated in libraries and business frameworkds traditionally. 3)Entity services:- These represent a business centric service with a service boundary encompasssing one or more business related entities. They often create business objects and ensure abidancy by business rules and date completeness Example of business entities include order,client ,timesheet,and invoice. As their functional boundary is based on business entities,entity services are naturally agnostic to business processes.This allows them to be repeatedly reutilized in support of multiple tasks and business process,positioning them as highly reusable services. it would not be uncommon to label an entity service associated with the invoice business entity as the invoice service. 4)Utility services:- These are tyically business-logic agnostic and serve to provide reusable,cross-cutting functionalities related to processing data within legacy application environments.These are not related to or derived from existing business models. As a result these are commonly agnostic and reusable.Unlike task and entity services the involvement of business analysts or business subject matter experts is generally not required when modeling utility service candidates. utility services include notification,event logging,exception handling,and currrency conversion