chapter 71 chapter 7, 8 information technology for management 4 th edition turban, mclean, wetherbe...
TRANSCRIPT
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Chapter 7 1
Chapter 7, 8
Information Technology For Management 4th EditionTurban, McLean, WetherbeJohn Wiley & Sons, Inc.
Basic Information Systems
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Chapter 7 2
Functional Areas in a Business
BusinessFuntion
Accounting
Financing
MarketingSales
Operations
Human Resources
•Cash Management•Asset Management•Budgeting
•A/R•A/P•Payroll•General Ledger
•Compensation•Vacation•Skills/Training
•Receiving•Fulfillment•Process control•Purchasing
•Order Taking•CRM•Self-service
•Retail Pricing•Sales Promotions•Sales Force Management.•Customer Loyalty•Interactive Marketing
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Chapter 7 3
Functional Areas – Value Chain Perspective
The value chain model, views activities in organizations as either primary (reflecting the flow of goods and services) or secondary (supporting the primary activities). The organizational structure of firms is intended to support both of these types of activities.
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Chapter 7 4
Functional Areas – Supply Chain Perspective
The supply chain is a business process that links all the procurement from suppliers, the transformation activities inside a firm (the value chain) and the distribution of goods or services to customers via wholesalers and retailers.
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Chapter 7 5
Functional Information Systems
Composed of smaller systems: A functional information system consists of several smaller information systems that support specific activities performed in the functional area.
Integrated or independent: The specific IS applications in any functional area can be integrated to form a coherent departmental functional system, they can be integrated across departmental lines to match a business process or be completely independent.
Interfacing: Functional information systems may interface internally with each other to form the organization-wide information system or externally systems outside the organization.
Supportive of different levels: Information systems applications support the three levels of an organization’s activities: operational, managerial, and strategic
Functional information systems support the organization, processes and business model.
Enterprise Wide Environment – All business units.
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Chapter 7 6
Transactional
Office
Decision Support
Strategic
Functional Information Systems
Business transactions, events and processes. Support of the business and customers.
Back office administrative tasks and ops.
Datamining ops that support
management
Data Analysis and statistical
forecasting.
Operation Level of the company is normally highly structured and predefined.
Dynamic and what-if features.
IntegratedIntegrated
Clerical documents, schedules, mail,
manuals, etc.
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Chapter 7 7
Supply and Value Chains
Supply Chain Flows Materials flows are all physical products, new materials, and
supplies that flow along the chain. Information flows relates to all data associated with
demand, shipments, orders, returns and schedules. Financial flows include all transfers of money, payments,
credit card information, payment schedules, e-payments and credit-related data.
Supply chain refers to the flow of materials, information, payments, and services from raw material suppliers, through factories and warehouses (Value Chain), to the final consumer (Demand Chain). It includes tasks such as purchasing, payment flow, materials handling, production planning & control, logistics & warehousing, inventory control, and distribution. When it is managed electronically it is referred to as an e-supply chain.
Supply Chains contribute to increased profitability and competitiveness
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Chapter 7 8
Supply Chains Components The supply chain involves three segments:
UpstreamUpstream, where sourcing or procurement from external suppliers occur
InternalInternal, where packaging, assembly, or manufacturing take place
DownstreamDownstream, where distribution or dispersal take place, frequently by external distributors.
It also includes the movement of information and money and the procedures that support the movement of a product or a service.
Organizations and individuals are also part of the chain.
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Chapter 7 9
Supply Chains Classifications There are several major types of supply chain
Integrated make-to-stock Continuous replenishment Build-to-order Channel assembly.
Value ChainValue Chain
Demand ChainDemand Chain
““Supply” ChainSupply” Chain
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Chapter 7 10
Adding value along the chain is essential for competitiveness, however problems exist especially in complex or long chains and in cases where many business partners are involved. These problems are due to uncertainties and the need to coordinate several activities, internal units, and business partners.
Demand forecasts are a major source of uncertainties Competition Prices Weather conditions Technological development Customer confidence
Uncertainties exist in delivery times Machine failures Road conditions Shipments
Quality problems may also create production delays
Supply Chain Problems
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Chapter 7 11
The bullwhip effect refers to erratic shifts in orders up and down the supply chain because of poor demand forecasting, price fluctuation, order batching, and rationing within the chain.Even slight demand uncertainties and variability become magnified if each distinct entity, on the chain, makes ordering and inventory decisions with respect to its own interest above those of the chain. Distorted information can lead to tremendous inefficiencies, excessive inventories, poor customer service, lost revenues, ineffective shipments, and missed production schedules.
Supply Chain Problems continued
A common way to solve the bullwhip problem is by sharing information along the supply chain through EDI, extranets, and groupware technologies. For example employing a vendor-managed inventory (VMI) strategy, the vendor monitors inventory levels and when it falls below the threshold for each product this automatically triggers an immediate shipment.
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Chapter 7 12
Information sharing among supply chain partners (c-commerce) sometimes referred to as the collaboration supply chain is one method to overcome problems in the flow. Others are:
Optimal Inventory Levels Supply Chain Coordination and Collaboration Supply Chain Teams Performance Measurement and Metrics Various IT-Assisted Solutions
wireless technology optimal shipping plans strategic partnerships with suppliers just-in-time
Supply Chain Solutions
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Chapter 7 13
ERP and Supply Chains
It is comprised of a set of applications that automate routine back-end operations:
such as financial management inventory management Scheduling order fulfillment cost control accounts payable and receivable,
It includes front-end operations such as: POS Field Sales Service
It also increases efficiency, improves quality, productivity, and profitability.
ERP or enterprise systems control all major business processes with a single software architecture in real time.
Enterprise Resource PlanningEnterprise Resource Planning
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Chapter 7 14
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Chapter 7 16
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Chapter 7 17
ERP Reality
Complete systems can cost tens of millions of dollars
Implementation can take several years
Companies may lose flexibility
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Chapter 7 21
What is SAP? Systems Applications and Products in Data Processing
SAP is the leading global provider of client/server business application solutions
SAP is the number one vendor of standard business applications software
SAP is the fifth largest independent software supplier in the world
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Electronic Commerce
Interorganizational Systems: Business-to-business Electronic storefront
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Chapter 7 23
Market ExchangeInterorganizational Structure
Vertical integrationMultiple activities in the same firm
Risk: range of expertise required Selective sourcing
Some outsourced activities Risk: control of outsourcer
Virtual corporationCoordination of separate activities
Risk: loss of core competency
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Chapter 7 24
Questions
Do we benefit from electronic commerce? Do we use information to add value to
customers? Are we managing the product/service channel? Have we redesigned business with our partners to
take advantage of technology and provide security
Do we have partners with shared vision and common purpose?
Do we have the right infrastructure?
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Chapter 7 25
External / Internal Hosting
Outside (Cheaper) minimize bandwidth and hardware problems use external experts installed infrastructure little additional staffing required
Inside (More Control) dependent on third party reliability possible single vendor software solutions possible single vendor payment scheme
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Chapter 7 26
External / Internal Hosting
External better at storefrontsbut requires close integration with core
business Internal better at business to
businessbut often creates a self-contained
replicated system that can be outsourced
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Chapter 7 27
Payment
Credit CardsSET (Secure Electronic Transaction) with http
Electronic ChecksPublic/private key transactions with banks
Electronic Cash3rd party software to create virtual cash
EDI/EFTValue added network using 3rd party.
Common in business to business.
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Chapter 7 28
Infrastructure Drivers