FINAL EXAM (M3S1) PART 1 Flashcards
Project Selection phase is over resulting in the completion of various activities:
- Recognition of needs
- Determining user requirements
- an initial investigation
- verification of objectives, constraints, required output and input.
the next step is to determine exactly what the candidate system is to do by?
defining its expected performance
is carried out to select the best system that meets performance requirements.
Feasibility Study
it comprises of identification, description, and evaluation of the candidate system, and finally selection of the best system for the job.
Feasibility Study
recommends to the management either the most effective system or concludes that the system may not be evolved.
Feasibility Study
describing its output in a user acceptable format and at a higher level of detail than what was describe in the initial investigation.
System Performance Definition
3 System Performance Definition
- Statement of Constraints
- Identification of specific system objectives
- Description of output
these are factors that limit the solution of the problem.
Constraints
they are derived from the general objectives specified in the project directive at the end of the initial investigation.
Identification of specific system objectives
the step states the system’s benefit and then translates them into measurable objectives.
Identification of specific system objectives
a final step in system performance definition
Description of output
The analyst is now ready to evaluate the feasibility of candidate systems to produce these outputs:
- Performance Metric Report
- User Feedback survey results
- Error Reduction Report
- Compliance Certification
- System Load test Result
a detailed report showing the improvement in registration times, system uptime and peak load handling capabilities.
Performance Metric Report
Surveys from students and staff reflect the user satisfaction rate with the new system interface and overall experience.
user feedback survey results
documentation and analysis showing the reduction in data entry errors before and after the system enhancements
Error Reduction Report
Evidence and documentation proving the system’s compliance with relevant data privacy regulations.
Compliance Certification
Reports from simulated peak load test demonstrating the system’s ability to handle increased traffic without performance issue
System Load test result
If the feasibility study is to serve as a decision document it must answer three key questions:
- is there a new and better way to do the job that will benefit the user?
- What are the cost and saving of the alternatives?
- what is recommended?
Feasibility Considerations:
- Economic Feasibility
- Technical Feasibility
- Behavioral Feasibility
this is the most frequently used method for evaluating the effectiveness of a candidate system.
Economic Feasibility
more commonly known as cost/benefit analysis, the procedure is determine the benefits and savings that are expected from a candidate system and compare them with cost.
Economic Feasibility
centers around the existing computer system (hardware, software, etc.) and to what extent it can support the proposed addition.
Technical Feasibility
this involves financial considerations to accommodate technical enhancements.
Technical Feasibility
Hesitant to change
Behavioral Feasibility
Steps in Feasibility analysis:
- Form a project team and appoint a project leader
- Prepare system flowchart
- enumerate potential candidate system
- describe and identify the characteristics of the candidate system
- determine and evaluate the performance and cost-effectiveness of the candidate system.
- weight system performance and cost data
- select the best candidate system
- Feasibility Report
what steps in feasibility is this?
-Future system users should help design and implement the system.
-Their knowledge and experience are crucial for success.
-Small projects can be handled by an analyst and an assistant.
-Complex projects need a larger team of analysts and user staff with the necessary expertise.
-Sometimes, an outside consultant and an information specialist join the team until the project is finished.
- Form a project team and appoint a project leader
what steps in feasibility is this?
-The next step in the feasibility study is to create general system flowcharts.
-Review information-oriented charts and data flow diagrams from the initial investigation.
- Prepare a system flowchart
what steps in feasibility is this?
-Find systems that can produce the outputs shown in the flowcharts by changing logical models to physical ones.
-Check hardware that can meet the system’s needs.
-Look at the processing power and memory of
available computers, which differ in size, memory, and software.
-The project team can ask vendors about the processing capabilities of their systems.
- Enumerate Potential candidate system
what steps in feasibility is this?
-Begin a preliminary evaluation to narrow down the candidate systems to a manageable number.
-Use technical knowledge and expertise to understand the capabilities and limitations of each candidate system.
- Describe and identify the characteristics of the candidate system
what steps in feasibility is this?
-Evaluate each system’s performance against the requirements set before the feasibility study.
-Aim for a close match, though trade-offs may be needed to select the best system.
-Consider the total cost, including design, installation, user training, facility updates, and documentation
- Determine and evaluate the performance and the cost-effectiveness of each candidate system.
what steps in feasibility is this?
-Sometimes, the performance and cost data clearly show the best system, ending the feasibility study.
-Often, the best system isn’t clear. In such cases, assign ratings to each criterion to determine the most important factors.
-Select the candidate system with the highest total score.
- Weigh System performance and cost data
what steps in feasibility is this?
-The system with the highest total score is chosen as the best.
-This assumes fair weighting and accurate rating of each evaluation criterion.
-Growth potential usually has the highest weight, followed by system development and user training.
- Select the best candidate system
what steps in feasibility is this?
-The feasibility study ends with a report for management.
-It assesses the impact of the proposed changes on the relevant areas.
-The report should be clear and concise for management, but detailed enough for system design.
-There is no standard format; the format is chosen based on the user and system.
- Feasibility Report
