Ch 4 - Requirements Modeling

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  1. (T/F) The overall objective of the systems analysis phase is to understand the proposed project, ensure that it will support business requirements, and build a solid foundation for system development.
    True
  2. The systems analysis phase includes the four main activities:
    • Requirements modeling
    • data and process modeling
    • object modeling
    • consideration of development strategies.
  3. Involves fact-finding to describe the current system and identification of the requirements for the new system, such as outputs, inputs, processes, performance, and security.
    Requirements modeling
  4. Refer to electronic or printed information produced by the system.
    Outputs
  5. Refer to necessary data that enters the system, either manually or in an automated manner.
    Inputs
  6. Refer to the logical rules that are applied to transform the data into meaningful information.
    Processes
  7. Refers to system characteristics such as speed, volume, capacity, availability, and reliability.
    Performance
  8. Refers to hardware, software, and procedural controls that safeguard and protect the system and its data from internal or external threats.
    Security
  9. The deliverable, or end product, of the systems analysis phase is a _____________, which is an overall design for the new system.
    System requirements document
  10. Enable you to identify a problem, evaluate the key elements, and develop a useful solution.
    Analytical skills
  11. Valuable to a systems analyst who must work with people at all organizational levels, balance conflicting needs of users, and communicate effectively.
    Interpersonal skills
  12. A user-oriented technique for fact-finding and requirements modeling that brings users into the development process as active participants.
    Joint application development (JAD)
  13. A team-based technique that speeds up information systems development and produces a functioning information system.
    Rapid application development (RAD)
  14. The __________ phase combines elements of the systems planning and systems analysis phases of the SDLC.
    Requirements planning
  15. During the ________ phase, users interact with systems analysts and develop models and prototypes that represent all system processes, outputs, and inputs.
    User design
  16. The _________ phase focuses on program and application development tasks similar to the SDLC.
    Construction
  17. The _______ phase resembles the final tasks in the SDLC implementation phase, including data conversion, testing, changeover to the new system, and user training.
    Cutover
  18. ________ is another agile approach. The name comes from the rugby term, where team members lunge at each other to achieve their objectives.
    Serum
  19. ________ help users, managers, and IT professionals understand the design of a system.
    Models
  20. _________ involves graphical methods and nontechnical language that represent the system at various stages of development.
    Modeling
  21. A ___________ is a top-down representation of a function or process. An analyst can show business functions and break them down into lower-level functions and processes.
    Functional decomposition diagram (FDD)
  22. Describes one or more business processes, such as handling an airline reservation, filling a product order, or updating a customer account.
    Business process model (BPM)
  23. During requirements modeling, analysts often create models that use a standard language called ____________.
    Business process modeling notation (BPMN)
  24. The overall diagram is called a ______, and the designated customer areas are called ________.
    Pool , swim lanes
  25. Working from a functional decomposition diagram, analysts can create _________ to show how the system stores, processes, and transforms data.
    Data flow diagrams (DFDs)
  26. The __________ is a widely used method of visualizing and documenting software systems design.
    Unified Modeling Language (UML)
  27. A visually represents the interaction between users and the information system.
    Use case diagram
  28. A _______ shows the timing of interactions between objects as they occur.
    Sequence diagram
  29. A ________ is a characteristic or feature that must be included in an information system to satisfy business requirements and be acceptable to users.
    System requirement
  30. Refers to a system's ability to handle increased business volume and transactions in the future.
    Scalability
  31. Systems developers must identify and document indirect expenses that contribute to __________.
    Total cost of ownership (TCO)
  32. A model that asks the traditional fact-finding questions in a systems development context.
    Zachman Framework for Enterprise Architecture
  33. A planned meeting during which you obtain information from another person.
    Interview
  34. In an ________, some people have more influence or knowledge than appears on an organization chart.
    Informal structure
  35. When you phrase your questions, you should avoid ________ that suggest or favor a particular reply.
    Leading questions
  36. Encourage spontaneous and unstructured responses.
    Open-ended questions
  37. Limit or restrict the response.
    Closed-ended questions
  38. Closed-ended questions that ask the person to evaluate something by providing limited answers to specific responses or on a numeric scale.
    Range-of-response questions
  39. Analysts sometimes hear only what they expect to hear. You must concentrate on what is said and notice any nonverbal communication that takes place.
    Engaged listening
  40. Can help you understand how the current system is supposed to work.
    Document review
  41. The _________ of current operating procedures is another fact-finding technique.
    Observation
  42. The purpose of the study was to determine how various changes in the work environment would affect employee productivity.
    Hawthorne Effect
  43. A ___________, also called a survey, is a document containing a number of standard questions that can be sent to many individuals.
    Questionnaire
  44. When studying an information system, you should collect examples of actual documents using a process called __________.
    Sampling
  45. A ________ would select every tenth customer for review.
    Systematic sample
  46. Another important fact-finding technique. Your _______ can include the Internet, IT magazines, and books to obtain background information, technical material, and news about industry trends and developments.
    Research
  47. Research also can involve a visit to a physical location, called a __________, where the objective is to observe a system in use at another location.
    Site visit
  48. Another popular method of obtaining input is called __________, which refers to a small group discussion of a specific problem, opportunity, or issue.
    Brainstorming
  49. In __________, each participant speaks when it is his or her turn, or passes.
    Structured brainstorming
  50. In __________, anyone can speak at any time.
    Unstructured brainstorming
  51. Keeping accurate records of interviews, facts, ideas, and observations is essential to successful systems development.
    Documentation
  52. Includes word processing, spreadsheet, database management, presentation graphics, and collaboration software programs.
    Productivity software
  53. A common tool for showing the distribution of questionnaire or sampling results is a vertical bar chart called a _________.
    Histogram
  54. A ___________, such as Microsoft Outlook, includes a personal calendar, a to-do list with priorities and the capability to check off completed items, and powerful contact management features.
    Personal information manager (PIM)

Card Set Information

Author:
JungJp
ID:
323143
Filename:
Ch 4 - Requirements Modeling
Updated:
2016-09-12 13:04:00
Tags:
Systems
Folders:
systems analysis and design
Description:
1st Semester
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