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CIS 321—IS Analysis & Design
Chapter 1: The World of the Modern Systems
Analyst
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What is IS Analysis and Design?
Information systems (IS) are a key ingredient for successful organizations.
The key to successful IS is thorough analysis and design.
Systems analysis is specifying ______ the IS will do.
Systems design is specifying ______ the IS will do what the analysis specifies.
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IS Problem Solving—1 Understand the __________
goals, objectives, players, business processes Define ____________ for the solution
inputs, processes, outputs Perform __________ analysis
economic feasibility technological feasibility
Develop ___________ solutions hardware, software, people, culture
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IS Problem Solving—2 Recommend one ____________
consult with users and stakeholders _________ the solution in detail
databases, user interfaces, networks, procedures, conversion strategy, programs
___________ the solution hardware, software, coding, testing, deployment
Monitor and _________ the solution check with users and stakeholders recommend and make necessary improvements
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Information Systems A system: collection of interrelated ___________
that function together to achieve an outcome. An information system: a system designed to economically provide useful information.
A ___________ is a part or component of a system. A system may be a component of a ____________. Functional ______________ is dividing a system into
its components. A system has a boundary or ________. A system has an ____________ boundary.
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A Computer-Based IS (CBIS)
Hardware computers, peripherals, networks, servers
Software OS, application, packaged, custom, web-based
Inputs manual, automated, real-time, batched
Outputs real-time, detailed, summarized, hardcopy, softcopy
Data flat file, database
People users, managers, technicians, programmers
Procedures documentation, training, hiring
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Types of Information Systems
Transaction processing system (TPS) capture and record information about business
transactions, on-line TPS (OLTP) Management IS (MIS)
uses a TPA to produce reports for planning and controlling
Executive IS (EIS) provide executives with information for strategic
planning comes from TPS, MIS, and external sources
Decision support system (DSS) designed to facilitate decision making, “what if” analysis
Communication support, office support systems
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Technical Knowledge & Skills
Computers Peripherals Networks Databases Programming languages Operating systems Tools
packages (MS Access, Oracle Developer, etc.) integrated development environments (IDE’s)—
e.g., .NET computer-aided system engineering (CASE)
Techniques (project mgmt, systems A&D, coding)
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Business Knowledge & Skills
Business functions Finance Manufacturing Marketing Management
Business types Manufacturing Retail Finance Health Insurance
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People Knowledge and Skills
Company ___________ people, values, teamwork, etc.
Managers’ and users’ skill sets Reaction to change Ways of communicating Relationships (politics) Ethics
keep sensitive information confidential for your own company for your client’s company
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Environment of the Analyst
Technological environment Desktop systems Networks Client-server Mainframe Internet, intranet, extranet technology
Job titles programmer analyst systems designer software engineer consultant, …
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The Analyst & Strategic Planning
Developing EIS’s (___________ IS) Consulting with senior managers on IS strategy
plan part of the firm’s overall strategic plan application architecture plan technology architecture plan
Business process ______________ (BPR) project radical improvement, not continuous improvement
___________ resource planning (ERP) integrated set of software packages for key IS SAP, PeopleSoft complex, expensive
Working with consultants