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

Los Angeles County
Department of Public Social Services
LEADER Replacement System (LRS)
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
• Industry-Proven Technology. All new system acquisition and infrastructure
should use commercially viable, industry-proven, widely-used technology to
the maximum extent possible. Use of industry-proven, widely-used
technology allows for easier access to affordable skills and a large base of
proven software solutions. It can reduce risk, and helps ensure robust product
support. Wherever practical, the County should implement commercial-offthe-shelf
technology as a first preference over completely custom
applications. Open Source software should only be used when a viable set of
commercial vendors have committed to support it.
• Countywide Network Backbone. The Los Angeles County Enterprise
Network (LAnet-EN) will be used as countywide network backbone for
applications and services to foster greater collaboration and sharing of data
between County departments and agencies. The County uses the TCP/IP
family of protocols as the standard network protocol to ensure technical
compatibility and efficient use of the available data transport resources.
• Multi-tier Server Architecture. All new system acquisition and development
should employ a multi-tiered architecture that separates presentation,
business logic, database and other services into logical components. A multitiered
architecture provides architectural flexibility from many perspectives
including scalability to meet future growth needs, selection of different
platforms to meet potential changes to technology standards and directions,
and minimization of technology obsolescence.
• Web Browser Client. All new system acquisition and development should
employ server-based thin client solutions requiring only network access and a
Web browser for end-user access whenever such solutions are technically
appropriate. Through the use of server-based applications, thin client
technologies (especially Web-based clients), portals, and gateways, County
Departments can reduce the cost and complexity of all IT functions, making it
easier to implement, deploy, manage, and monitor applications and
information resources. Server-based architecture provides the ability to rollout
new applications and upgrades to the entire organization simultaneously.
• Server Consolidation. To the extent possible, systems should utilize new
technologies and architectures that provide for a consolidated server
environment. Such consolidated server environment will streamline software
licensing, more efficient system administration, better scalability and
utilization planning, and provide a more effective management of storage,
system capacity and performance, and backup and disaster recovery.
• Service Oriented Architecture (SOA). This approach requires that County
and its Departments take a critical look at their operations and develop a
“service-based” business model. Such modularization at the business level
LRS RFP - Attachment H (Technical Exhibits) Page 10 November 30, 2007