PTI Assignment

Discovering Computers 2011 - Living in a Digital World
Chapter 12
For Mr. TriDjoko Wahjono


True / False
1. T   7. F
2. T   8. F
3. F   9. T
4. F   10. T
5. F   11. F
6. T

Multiple Choice
1. A   5. C
2. B   6. D
3. C   7. A
4. A   8. D

Matching
1. H   6. G
2. D   7. F
3. A   8. J
4. B   9. C
5. I   10. K

Short Answer
1. - A set of activities to build an information system.
    - Planning, Analysis, Design, Implementation, Maintenance.
2. -> Operational feasibility measures how well the proposed information system will work.
     > Schedule feasibility measures whether the established deadlines for the project are reasonable.
     > Technical feasibility measures whether the organization has or can obtain the hardware, software, and people needed to deliver and then support the proposed information system.
     > Economic feasibility measures whether the lifetime benefits of the proposed information system will be greater than its lifetime costs.
    - Identify the areas for which information is required, create the necessary research questions, determine the sources of data, research to gather the raw data, confirm that the data is correct, process te data to derive meaningful information and then translate into goals and requirements.
3. - UML is used to specify, visualize, modify, construct and document the artifacts of an object-oriented software-intensive system under development.
    - Class diagram is a static diagram, but use case diagram is a dynamic diagram
4. - Perform maintenance activities, monitor system performance, and assess system security.
    - Corrective maintenance is the process of diagnosing and correcting errors in an information system, Adaptive maintenance is the process of including new features or capabilities in an information system, Performance monitoring is the process to determine whether the system is inefficient or unstable at any point, Perfective maintenance is the process to investigate solutions to make the information system more efficient and reliable.
5. - a plan which summarizes in writing all safeguards that protect the organization's information assets.
    - Identify all information assets of an organization, Identify all security risks that may cause an information asset loss, and identify the safeguards that exist to detect, prevent, and recover from a loss.