New Rules of Strategy Arthur Andersen Outlook, 1998,

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New Rules of Strategy (Arthur Andersen Outlook,
1998, 1)
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New Rules of Strategy (Arthur Andersen Outlook,
1998,01)
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Architecture, Infrastructure ERP

• Define application,bit, byte, client/server,
  coaxial cable, CPU, database,ERP, ethernet, fiber
  optic, gigabit (byte), hard drive, ISDN, kilobit
  (byte), LAN, WAN, megabit (byte), modem,
  operating system, protocol, RAM, SAP, server,
  thick client, thin client, WAN, TCO, legacy
  system
• Distinguish architecture from infrastructure
• Discuss the relationship between strategy,
  business requirements, architecture, and
  infrastructure
• Discuss the applicability of evaluation criteria
  to architecture and infrastructure
• Analyze infrastructure and architecture needs
  across hardware, software, data and networks
• Advantages and disadvantages of ERPs

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Strategy, Requirements, Architecture
Infrastructure

• Strategy
• Business Requirements
• Architecture
• 
  Infrastructure

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Information Architecture

• High level map of info requirements blueprint
• Centralized
• data
• communications
• Decentralized
• focus on organizational function
• Translates strategy into infrastructure
• Hard to define needs change

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Information Infrastructure

• Physical facilities, services, management
  supporting computing resources
• hardware
• software
• networks communications
• data
• personnel

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Evaluation Criteria Applicability
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Meta Group Guidelines for Adaptable IT AI

• Plan modular (independent and loosely coupled)
  vs. monolithic
• Have clear boundaries between infrastructure
  components
• With network architecture, provide access to all
  users when it makes sense to do so

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Architecture Definitions - Client/server

• Client - PC or workstation attached to a network
  which is used to access shared network resources
• Server - machine that provides clients with
  services (i.e., sharing databases, software)
• Thick client - full function stand-alone computer
  that is used either exclusively or occasionally
  as a client in a client/server architecture
• Thin client - computer hardware designed to be
  used only as a client in a client/server
  architecture (Network PCs)

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Definitions

• Enterprise-wide system - distributed system that
  covers the entire organization
• ERP - a large highly complex software program
  that integrates many business functions under a
  single application
• Legacy system - older or mature IS (often 20-30
  years old)

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ERP

• No more fragments!
• Streamlined operations
• One system fits all?
• Too centralized?
• Big bucks
• Growing need to integrate ERP applications within
  companies and across trading partners
• middleware for 24/7 B2B applications (ERP
  databases and B2B applications)

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Total Cost of Ownership

• Popular when PC-based IT infrastructures began
  gaining popularity
• TCO capital investments technical support
  administration training
• Helps managers understand how infrastructure
  costs break down
• Annual costs per user for each potential
  infrastructure choice
• Shared vs. isolated