Task: Specify Component Attributes

This task specifies the details of the Service Components which realize a Design Subsystem.

Purpose

To elaborate on one or more Artifact: Design Subsystems which were described during Task: Subsystem Design (SOA) and to provide detailed Artifact: Service Component designs.

Relationships

Roles	Main: Designer	Additional: Implementer	Assisting:
Inputs	Mandatory: Design Subsystem Service Component	Optional: Service Model	External: None
Outputs	Service Component

Main Description

Services used in an SOA based solution are realized through Artifact: Service Components which belong to a specific business function aligned subsystem. Each Service Component will have the responsibility of ensuring the QoS of the services it will realize. As an enterprise-scale asset, each Service Component qualifies for funding, governance and maintenance associated with it. Infrastructure management must be in place to ensure availability, load balancing, security, performance, versioning and overall health of the Service Component that will be responsible for implementing the functionality of a set of services and ensuring its quality of service. Functional components and technical components can be used across several Service Components.

Steps

Model Component Attributes

In this step, we will define the details of each service component, including attributes, services, policies, and rules. The template that is to document Service Component specification will include the following attributes:

Properties or Attributes
Rules
Variations
Depends on <other components>
Composition of Functional and Technical components
Services Provided
Services Required

Properties

Multiple Occurrences
Event Driven
Ongoing
Optional
Planned
Repeatable

More Information

Guidelines	Service Component Patterns