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Questions and Answers
Economic feasibility is also called cost-effectiveness feasibility.
Economic feasibility is also called cost-effectiveness feasibility.
False (B)
There are three feasibility tests in the SDLC.
There are three feasibility tests in the SDLC.
False (B)
Technical feasibility is concerned with the availability of technology to meet the system requirements.
Technical feasibility is concerned with the availability of technology to meet the system requirements.
True (A)
Operational feasibility is concerned with the benefits and costs of the system.
Operational feasibility is concerned with the benefits and costs of the system.
Economic feasibility is the most important type of feasibility.
Economic feasibility is the most important type of feasibility.
A feasibility study is conducted during the planning phase of SDLC.
A feasibility study is conducted during the planning phase of SDLC.
A feasibility study determines whether the system development is suitable for the company.
A feasibility study determines whether the system development is suitable for the company.
The planning phase begins when the project development team is formed.
The planning phase begins when the project development team is formed.
A feasibility study determines the best solution for the problem.
A feasibility study determines the best solution for the problem.
A detailed analysis is also known as a feasibility study.
A detailed analysis is also known as a feasibility study.
The system proposal is presented to the users for feedback.
The system proposal is presented to the users for feedback.
Outsourcing involves writing custom software.
Outsourcing involves writing custom software.
The design phase involves acquiring hardware and software.
The design phase involves acquiring hardware and software.
A feasibility report is presented during the detailed analysis phase.
A feasibility report is presented during the detailed analysis phase.
Vertical market software is designed for a particular industry.
Vertical market software is designed for a particular industry.
The preliminary investigation determines the best solution for the problem.
The preliminary investigation determines the best solution for the problem.
A feasibility study is conducted in the Design phase of the SDLC.
A feasibility study is conducted in the Design phase of the SDLC.
The purpose of a feasibility study is to determine user requirements.
The purpose of a feasibility study is to determine user requirements.
A systems analyst is responsible for conducting a feasibility study.
A systems analyst is responsible for conducting a feasibility study.
The project team is responsible for conducting a feasibility study.
The project team is responsible for conducting a feasibility study.
A feasibility study is a detailed analysis of the current system.
A feasibility study is a detailed analysis of the current system.
The feasibility study is conducted in Phase 2 of the SDLC.
The feasibility study is conducted in Phase 2 of the SDLC.
The feasibility study is used to recommend a solution to the problem.
The feasibility study is used to recommend a solution to the problem.
A feasibility study is used to acquire hardware and software.
A feasibility study is used to acquire hardware and software.
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Study Notes
System Development Life Cycle (SDLC)
- System development measures the suitability of a system to a company based on economic, technical, operational, and schedule feasibilities.
Feasibility Tests
- Economic feasibility (cost/benefit analysis)
- Technical feasibility
- Operational feasibility
- Schedule feasibility
Documentation
- Collection and summarization of data and information
- Includes reports, diagrams, programs, and other deliverables
Data and Information Gathering Techniques
- Review documentation
- Observe
- Questionnaire
- Interview
- Joint-application design (JAD) session
- Research
Reasons to Create or Modify an Information System (IS)
- To correct problems in existing systems
- To improve existing systems
- Outside groups may mandate change
- Competition can lead to change
Planning Phase
- Begins when the steering committee receives a project request
- Steering committee:
- Reviews and approves project requests
- Prioritizes project requests
- Allocates resources
- Forms project development team for each approved project
Analysis Phase
- Conducts preliminary investigation (feasibility study)
- Performs detailed analysis
- Presents findings in a feasibility report
Preliminary Investigation
- Determines the exact nature of the problem or improvement
- Checks if it's worth pursuing
- Presents findings in a feasibility report
Detailed Analysis
- Studies how the current system works
- Determines user wants, needs, and requirements
- Recommends a solution (logical design)
System Proposal
- Assesses feasibility of each alternative solution
- Recommends the most feasible solution
- Presented to the steering committee for system development decisions
Possible Solutions
- Horizontal market software (meets needs of many companies)
- Vertical market software (designed for a particular industry)
- Writing custom software (developed at user's request)
- Outsourcing (having an outside source develop software)
Design Phase
- Acquires hardware and software, if necessary
- Develops all details of the new or modified information system
Acquiring Hardware and Software
- System Development Life Cycle (SDLC)
- Phase 1: Planning
- Phase 2: Analysis
- Phase 3: Design
- Phase 4: Implementation
- Phase 5: Support
Guidelines for System Development
- Arrange tasks into phases
- Involve users
- Develop clearly defined standards
Participants in System Development
- Systems analyst: responsible for designing and developing information systems
- Users: anyone for whom the system is being built
- Project team: develops the system
Feasibility Study
- Determines the exact nature of the problem or improvement
- Checks if it's worth pursuing
- Presents findings in a feasibility report
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