Computer Applications and Systems - Workshop IV
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Transcript of Computer Applications and Systems - Workshop IV
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BIS 220, INTRODUCTION TO COMPUTER SYSTEMS AND APPLICATIONS
WORKSHOP IVRaji Gogulapati
July 2014
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Workshop III Review
Why Most New Information Systems Fail?
Nature of Software Development
IS/ IT Planning & Justification
IS/ IT System Development Methodologies
IS/ IT Funding & Costs
Summary
Your activities for coming week
TOPICS
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Why do Systems Implementations Fail Often?
What can be done?
Systems Failures
Question and
Understand
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Systems planning/ selection
System implementation
Support
Systems Failures in Stages
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Types of Failure
Types of failure
Disaster or Horror
Big or Small
Forthcoming
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Expectations Gap Risk
sInactio
n
Failures
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What did we learn so far?
Why many new system implementations fail ?
What can be done ?
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IS/ IT • Planning • Justification
IS/ IT system development methodologies and options• Team effort• Several
approaches • Start with
investigation and analysis, design, maintenance and review
Emphasis • How to deliver • Right information
to the right person at the right time!
What is Next ?
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Workshop III Review
Why Most New Information Systems Fail?
Nature of Software Development
IS/ IT Planning & Justification
IS/ IT System Development Methodologies
IS/ IT Funding & Costs
Summary
Your activities for coming week
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Basic system development framework
IS development – intangible, eventually
visible
Process of design to delivery is repeatable
Software engineering –
shifts from waterfall paradigm
Analogies – limited and not
complete
Iterative, agile development
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IS/ IT Strategic Planning
External/ Internal Business
environment
.
External/ Internal IS/
IT environment
.
IS/ IT Mgmt. Policies
Framework for IS/ IT Planning
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IS/ IT Mgmt. Policies
IS Strategy
IT Strategy
Future Application Portfolio
Framework for IS/ IT Planning continued
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Development of Information Systems, Business Manager’s Point of View
Strategic High Potential
Key Operational Support
Business Development Projects
IT Development Projects
Business Infrastructure Projects IT Infrastructure Projects
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IS Planning Process
Align organization’s mission and Business assessment
Arrive at Organization’s strategic plan
Consider current technology architecture
IS strategic plan
New Information Technology architecture
IS Operational Plan
IS development plans
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Spending Approaches – History and Current
Justification of Investments
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Workshop III Review
Why Most New Information Systems Fail?
Nature of Software Development
IS/ IT Planning & Justification
IS/ IT System Development Methodologies
IS/ IT Funding & Costs
Summary
Your activities for coming week
Topics
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Stages of SDLC
Systems investigation
Systems analysis
Systems design
Programming and
testing
Implementation
Operations and maintenance
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Supporting Tools of SDLC during various stages
Prototyping
Joint Application Design
Upper case tools
Lower case tools
Examples?
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What are the benefits of planning for Information Systems? What obstacles teams might have to overcome to have their plans heard in an organization? Discuss
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Problem Recognition and Definition
User mentions a problem
Is it a problem or symptom
Establish the need
Define the problem
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Technical feasibility (Proof of
concept)
Economic feasibility (costs
vs Benefits)
Legal Feasibility (laws and
regulations)
Operational feasibility (historical
acceptance of IT systems,
Personnel re-training)
Schedule feasibility
(balancing time and resource)
Feasibility Study
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Current System
Analysis
Requirements analysis
Conceptual Design
Alternatives
Systems Analysis
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Goals of systems analysis stage
Understand As-Is Determine To-Be
Understand current processes Determine requirements for the system being built
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System Development Tools
Iterative Development – Theme
Design
Develop
Test
Joint Application Developme
nt User review
Requirements
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System Development Tools
Compress cycles, iterative Development – Theme
Rapid Application
Development
Compress SDLC stage
time
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Project management terminology
Team work
Project plan
Elements of project management
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Identifying requireme
nts
Organizational integration
Team manageme
nt
Risk and opportunity management
Project control
Visibility, status, corrective action, leadership
Elements of Project management
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What
• IS/ IT planning• justification of investments
Did we learn
• System development methodologies
• Options
So far?
• How to deliver the right information to the right person at the right time?
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What
is
next?Who funds
IT investments What are the costs involved?
What
is
next?Managing
IT Portfolios Evaluation W
hat
is
next?Monitor,
communicate reduce risks
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Workshop III Review
Why Most New Information Systems Fail?
Nature of Software Development
IS/ IT Planning & Justification
IS/ IT System Development Methodologies
IS/ IT Funding & Costs
Summary
Your activities for coming week
Topics
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Funding and
Costs
Methods
Cost Evaluatio
n
• Comparison
• Chargeback• Allocation • Corporate
Budget
• ?
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IT Portfolio Profile
Informational %Strategic %
Transactional %
Infrastructure %
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Perspectives for driving performance
Financial perspecti
ve
Internal Perspective
Customer perspecti
ve
Learning Perspective
Goals Measures
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Your activities for coming week
Prepare and submit assignments as per syllabus. Remember to include all references and use proper citations. The final exam is during week four – week five. Follow Materials Link.
Read:
Selected Readings specified in Materials tabRefer to your syllabus for details on activities during the workshop
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The chapters recommended from the electronic texts in Materials were used.
Some of the figures used in the slides were taken from the chapters in texts.
Source for slides on Information Architecture and Information Management are from Principles of Information Systems Management by John Ward
Source of slides on Information Systems failures is from Phil Simon’s Why New Systems Fail theory and practice collide.
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