Difference between revisions of "SOA Delivery lifecycle"
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===SOA Layers=== | ===SOA Layers=== | ||
''An example of possible SOA layers and their characteristics.'' | ''An example of possible SOA layers and their characteristics.'' | ||
<table border=1> | |||
<tr> | |||
<th>*</th> | |||
<th>Basic services</th> | |||
<th>Intermediary services</th> | |||
<th>Process-centric services</th> | |||
<th>Public (enterprise) services</th> | |||
</tr> | |||
<tr> | |||
<th>Description</th> | |||
<td>Item four</td> | |||
</tr> | |||
<tr> | |||
<th>Implementation complexity</th> | |||
<td>Item four</td> | |||
</tr> | |||
<tr> | |||
<th>State management</th> | |||
<td>Item four</td> | |||
</tr> | |||
<tr> | |||
<th>Reusability</th> | |||
<td>Item four</td> | |||
</tr> | |||
<tr> | |||
<th>Frequency of change</th> | |||
<td>Item four</td> | |||
</tr> | |||
<tr> | |||
<th>Mandatory element of SOA</th> | |||
<td>Item four</td> | |||
</tr> | |||
</table> | |||
Revision as of 00:09, 17 June 2007
Following general stages in SOA delivery lifecycle are recognized
- service-oriented analysis
- service-oriented design
- service development
- service testing
- service deployment
- service administration
Top-down approach[edit]
- promotes the formal definition of corporate business models prior to modeling service boundaries
- can result in the highest quality level of SOA
- it also imposes a significant volume of up-front analysis work
Bottom-up approach[edit]
- delivery of application services on an "as needed" basis
- is easy to follow
- does not result in the advancement of service-orientation or process-enabled SOA
Agile approach[edit]
- meet in the middle
- on-going analysis is supported, while still allowing the immediate delivery of services
- as analysis progresses, existing services are revisited and revised as required
Service-oriented design (steps)[edit]
- compose SOA (define service layers,position core standards, choose SOA extensions)
- design entity-centric business services
- design application services
- design task-centric services
- design service-oriented business process
SOA Layers[edit]
An example of possible SOA layers and their characteristics.
| * | Basic services | Intermediary services | Process-centric services | Public (enterprise) services |
|---|---|---|---|---|
| Description | Item four | |||
| Implementation complexity | Item four | |||
| State management | Item four | |||
| Reusability | Item four | |||
| Frequency of change | Item four | |||
| Mandatory element of SOA | Item four |