Security Management Services Based on Authentication Roaming between Different Certificate Authorities - Enterprise Information Systems Design, Implementation and Management: Organizational Applications - page 79

SAML was initially designed as a protocol to
enable users to log on to multiple Web sites with
single authentication by a Web site, exchanging
the result of authentication using XML messages
called assertions between the Web sites. The Lib-
erty Alliance Project designed the initial ID-FF
as the superset of SAML, and contributed it to
OASIS. The efforts of these two organizations on
Web single sign-on standard, along with a number
of the related technologies on identity management
including account linking and single logout, were
then converged into the latest SAML, SAML2.0.
Replace HTTP redirects with server -to-server
communications (Takeda,Y. et al,2006)

Complicated each system and number of
systems to be connected each other

• Security and privacy: leak of medical in-

formation by establishing coordination

To solve these problems, this hospital has es-
tablished integrating information systems based on
XML Web services technology. The basic concept
of plan for this integrating information system is:

• Sharing patient's information.

• Promoting the efficiency of business pro-

cess by establishing coordination of many
information systems.

• Aiming at improving services and patient's

experience.

cAse exAMpLe • Working with critical path.

• Input of the source of the outbreaks.

In this chapter we discuss the case evidence on
information system about the consolidation proj-
ect at Ninohe Hospital (Iwate prefecture) in the
northern district in Japan. This case shows how
integrating information system was promoted
regional coordination of medical systems by
realizing medical information system based on
XML Web Services technology. And the results
reveal the success in adopting and implementing
the integrating information system.
Turning now to existing environment and is-
sues of a prefectural hospital, which is controlled
by local government, so hospital directors have
no budget execution, this hospital has the close
relationship with Iwate prefecture healthcare
department and many other local hospitals and
companies. As for common issues, they were as
follows:

• Reducing costs.

results for the case: Advantageous
effects of integration

By adopting the integrating information system
based on XML Web services technology, this case
demonstrates and proves the advantageous effects
of integration (Hori,Ohashi & Suzuki,2005):

• Information sharing of patients.

• Improving documents and forms develop-

ment and management.

• Accessing data available in 24 hours.

• Improving effectiveness of business

process.

• Reducing inquiry by phone call.

• Reducing memory transfer of each doc-

tor's reservation, physical examination,
injection. • Difficulties in coordination of existing

many systems in hospital: multi-vender
systems in each department and dedicated
interface for connecting to other system

• Improvement of services for patients.

• Reducing holding time of carte of ambu-

lant patient.

• Exponential increasing costs according

to enhancement of scale of the hospital:

• Abbreviating waiting time.