leader replacement system - Department of Public Social Services ...

Los Angeles County
Department of Public Social Services
LEADER Replacement System (LRS)
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
A Business-Oriented Foundation for Services
Improved governance, compliance, and general risk reduction is a different quantifiable
benefit than increased business agility. Compliance and governance offers a reduction
of liability, while business agility offers an increase in business opportunity.
Implementing SOA for the purpose of improving business processes, establishing statewide
security, privacy, and implementation policies, and providing auditable information
trails, are ways that SOA can reduce several of the risks facing departments today.
• Increases Asset Reuse – One of the most important benefits of SOA is that users can
create new business processes and composite applications from existing services. In
other words, service reuse becomes the mode of operation instead of application
integration. Over time, as the state builds and reuses services, the ROI will increase.
• Encourages Effective Collaboration – SOA promotes sharing of ideas, business
services, solutions, best practices, frameworks, and tools across departments and
agencies. This results in lower overall costs, greater ROI for a given service, and a
higher degree of consistency from the user’s perspective.
• Reduces Integration Expenses – SOA provides an opportunity to migrate away from
monolithic, hard to change heavy business applications to light weight, loosely-coupled
business services. Loosely-coupled systems can reduce the complexity and hence the
cost of integrating and maintaining distributed computing environments. While moving to
standards-based interfaces such as Web Services reduces integration and cost
somewhat, the real win with SOA is in replacing multiple fine-grained functions with
coarse-grained, loosely coupled services that can handle a wider range of business
interactions in a more flexible manner. This results in less maintenance and upgrade
headaches, fewer customer complaints, and more secure systems.
• Reuse of Legacy Systems – By Web service enabling legacy systems, departments
can extend the life of and continue to take advantage of their mainframe investments
while allowing legacy applications to participate in a services environment. This is a key
strategy in moving from a predominately legacy applications environment to an SOAenabled
shared services environment.
The following article is a good description of how business and IT can become closer aligned. It
advocates that a business architecture is necessary to describe the business capabilities which
define “what” a business does, and SOA is a good mechanism for handling “how” the
capabilities are implemented.
http://msdn.microsoft.com/architecture/default.aspx?pull=/library/enus/dnbda/html/ServOrient.asp
.
Ulrich Homann - Microsoft Corporation, February 2006.
LRS RFP - Attachment H (Technical Exhibits) Page 21 November 30, 2007