Transcript CIS 397—Web Design

CIS 321—IS Analysis & Design
Chapter 1: The World of the
Modern Systems Analyst
What is IS Analysis and Design?
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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
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Understand the __________
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Define ____________ for the solution
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inputs, processes, outputs
Perform __________ analysis
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goals, objectives, players, business processes
economic feasibility
technological feasibility
Develop ___________ solutions
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hardware, software, people, culture
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IS Problem Solving—2
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Recommend one ____________
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_________ the solution in detail
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databases, user interfaces, networks, procedures,
conversion strategy, programs
___________ the solution
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consult with users and stakeholders
hardware, software, coding, testing, deployment
Monitor and _________ the solution
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check with users and stakeholders
recommend and make necessary improvements
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Information Systems
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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)
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Hardware
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Software
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flat file, database
People
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real-time, detailed, summarized, hardcopy, softcopy
Data
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manual, automated, real-time, batched
Outputs
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OS, application, packaged, custom, web-based
Inputs
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computers, peripherals, networks, servers
users, managers, technicians, programmers
Procedures
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documentation, training, hiring
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Types of Information Systems
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Transaction processing system (TPS)
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Management IS (MIS)
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provide executives with information for strategic planning
comes from TPS, MIS, and external sources
Decision support system (DSS)
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uses a TPA to produce reports for planning and controlling
Executive IS (EIS)
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capture and record information about business
transactions, on-line TPS (OLTP)
designed to facilitate decision making, “what if” analysis
Communication support, office support systems
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Technical Knowledge & Skills
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Computers
Peripherals
Networks
Databases
Programming languages
Operating systems
Tools
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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)8
Business Knowledge & Skills
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Business functions
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Finance
Manufacturing
Marketing
Management
Business types
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Manufacturing
Retail
Finance
Health
Insurance
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People Knowledge and Skills
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Company ___________
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people, values, teamwork, etc.
Managers’ and users’ skill sets
Reaction to change
Ways of communicating
Relationships (politics)
Ethics
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keep sensitive information confidential
for your own company
for your client’s company
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Environment of the Analyst
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Technological environment
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Desktop systems
Networks
Client-server
Mainframe
Internet, intranet, extranet technology
Job titles
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programmer analyst
systems designer
software engineer
consultant, …
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The Analyst & Strategic Planning
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Developing EIS’s (___________ IS)
Consulting with senior managers on IS strategy plan
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Business process ______________ (BPR) project
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radical improvement, not continuous improvement
___________ resource planning (ERP)
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part of the firm’s overall strategic plan
application architecture plan
technology architecture plan
integrated set of software packages for key IS
SAP, PeopleSoft
complex, expensive
Working with consultants
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