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19 Cards in this Set
- Front
- Back
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What is a systems requirement? |
Something that the information system must do or a property that it must have to satisfy business needs and be acceptable to users. |
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How are systems requirements classified? |
They are classified as outputs, inputs, processes, performance, and controls. |
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What is JAD? |
A user-oriented technique for fact-finding and requirements modeling. |
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What is RAD? |
Uses a condensed version of the system development life cycle, relying heavily on prototyping and user involvement. |
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How do JAD and RAD differ from traditional fact-finding methods? |
Both JAD (joint application development) and RAD (rapid application development) are team-based development process techniques where IT and system users actively participate in various development tasks. They differ from traditional fact-finding methods as the traditional model consulted users only when their input or approval was required. |
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What are the main advantages of team-based methods? |
• Users are more likely to feel a sense of ownership in the results, and support for the new system. • Can result in a more accurate statement of system requirements • A better understanding of common goals • a stronger commitment to the success of the new system • For RAD, the primary advantage is that systems can be developed more quickly with significant cost savings. |
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Provide three examples of a closed-ended question. |
1. How many users will require standard user licenses? 2. How many hours is the system offline for maintenance? 3. How much money has been allocated to this project? |
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Provide three examples of an open-ended questions. |
1. What are some of the problems are you experiencing from the current system? 2. What are some features you would like to see in the new system? 3. What is the risk for not proceeding with this project? |
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Provide three examples of range-of-response questions. |
1. On a scale of 1 to 10, with 1 the lowest and 10 the highest, how would you rate your overall satisfaction with the new system? 2. Prior to this training session, how comfortable did you feel using the new customer billing system? o Very comfortable o Somewhat comfortable o Neither comfortable nor uncomfortable o Somewhat uncomfortable o Very uncomfortable 3. How comfortable do you feel using the new customer billing system, after this training session? o Very comfortable o Somewhat comfortable o Neither comfortable nor uncomfortable o Somewhat uncomfortable o Very uncomfortable |
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What are three types of sampling? |
1. Systematic sampling 2. Stratified sampling 3. Random sampling |
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Which type of sampling would you use to analyze data input errors? |
Stratified sampling technique to apply a formula or condition on samples where input errors are more likely to occur. |
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List the 7 fact-finding techniques. |
1. Sampling of existing documentation, forms, and databases 2. Research and site visits 3. Observation 4. Questionnaires 5. Interviews 6. Prototyping 7. Joint requirements planning (JRP) |
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Explain sampling of existing documentation, forms, and databases. |
- This can include organization charts, manuals, reports, flowcharts, completed forms, and documents describing the problem.
These samples are used to identify: - Symptoms and causes of problems - Who the subject matter experts are - The business functions that support the present system - What type of data is to be collected and reported by the system - What questions need to be addressed in interviews |
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Explain research and site visits |
This is the process of reviewing other sources of information to gain a background understanding, technical material, and industry news about trends and developments. The research can include the internet searches, magazines, books, attending seminars, and discussions with other IT professionals. Site visits offer the ability to observe a working system in use at another location. |
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Explain observation |
The system analyst either takes part in, or watches a person perform actions, to learn about the system. Through observation, you can check the systems against the statements made in interviews and determine whether the procedures really operate as described. |
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Explain questionnaires |
A document with a number of standard questions that can be sent to many individuals. They can be used to gain information about a wide range of topics using a variety of question formats, such as, multiple choice, range-of-response, open-ended, and close-ended questions. They are helpful when you need information from a large number of people. |
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Explain interviews |
A face-to-face meeting to collect information from individuals. They give the analyst an opportunity to probe for more feedback, observe non-verbal communication, and motivates the interviewee to respond freely and openly. |
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Explain prototyping |
The act of building a small-scale model representing the users’ requirements. This provides an opportunity to examine input, output, and user interfaces to help discover or verify the system requirements. |
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Explain Joint requirements planning (JRP) |
Is a subset of JAD technique which is a process of conducting highly structured group meetings for the purpose of analyzing problems and defining requirements. |
