Enterprise Computing

1
Enterprise Computing

• Robert D. Cormia
• Electronic Commerce

2
Evolution in computing

• main frame
• centralized architecture
• 30 years of legacy systems
• client-server
• cheap desktop computing
• took advantage of networks
• n-tier / Web computing
• object based
• middleware

3
Vertical markets

• utilities
• manufacturing
• high technology
• telecommunications
• banking and finance
• retail and distribution
• travel and transportation
• state and local government
• information technology systems

4
Enterprise computing

• ERP - enterprise resource planning
• EDI - supply and value chain
• SRC - supplier retailer collaboration
• xERP - extended enterprise computing
• n-tier applications - n-tierpriseTM

5
ERP - Enterprise Resource Planning

• enterprise information integration
• HR, financials, logistics, marketing and sales
• SAP, Bann, PeopleSoft, Oracle, JD Edwards
• implemented by most Fortune 1000 firms
• very expensive to implement and maintain

6
XML - extensible markup language

• data not presentation
• universal data exchange
• XML may bring EDI to the Web
• financial documents with META data
• granularity of information in the markup
• the broader part of SGML minus HTML

7
Object Oriented Computing

• CORBA
• Common Object Request Broker
• Java
• Java language and reusable objects
• COM and DCOM
• Common Object Model
• RPCs
• Remote Procedure Calls
• EJB
• Enterprise Java Beans

8
Enterprise Java Beans

• Java value proposition
• server component architecture
• CORBA, COM, DCOM, EJB, and RPC
• what are beans? Why? When and how
• pioneered by IBM, Sun, used by Oracle
• protects installed IBM legacy infrastructure

9
Extended enterprise systems

• supply chain integration
• extended ERP applications
• vertical and horizontal integration
• business process meets business logic
• the next wave of distributed computing
• process outsourcing
• application management
• application service providers

10
Application Service Providers

• own and manage application
• own and manage infrastructure
• less expense, risk, and time to implement
• business partners of ERP firms / integrators
• a very new model with very few data points!

11
N-tierpriseTM

• extended enterprise
• extended applications
• horizontal and vertical integration
• Java and XML, Web browser based
• future enterprises defined by extension of its
  business processes applications over networks

12
The Internet is a revolution in distributed
computing and transactive content

• distributed objects and logic
• interactive transactions based on content
• businesses and processes connected over networks
• applications and be outsourced or managed
  remotely
• application service provider host and manage
  process