Essentials of MIS (12th Edition)
12th Edition
ISBN: 9780134238241
Author: Kenneth C. Laudon, Jane P. Laudon
Publisher: PEARSON
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Chapter 12, Problem 2RQ
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Alternative methods of building
An information system is a system which provides the necessary information to an organization to achieve the goals. The following alternative methods are using to building an information system...
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Traditional systems life cycle:
It is a formal methodology for managing the development of systems in development life cycle. It has the six step process to develop the system. They are:
- Analyzing the
system - Design the system
Programming - Test the system
- Implementation of system
- Maintenance of system.
Advantages for systems building:
The advantages of traditional system life cycle for system building is as follows:
- It is simple to implement and easy to understand...
Explanation of Solution
Information system prototyping:
It is an alternative model for building information system. It has a prototype which represents the requirements of the user.
Benefits of information system prototyping:
- The benefit of information system prototyping is exactly matches to the customer requirements and these model is mainly used to enhance the bigger projects.
- It is useful for routine problems and this information system is very structured and well-understood.
- It reduces the implementation cost of the project.
Limitations of information system prototyping:
- It is not appropriate for massive amounts of data...
Explanation of Solution
End-user development:
End-user development of information system is refers the programmers and system analysts. It gives the direct control to the project. By using the end-user development model, the project is rapidly developed with standard programming tools.
Advantages of end-user development:
- It takes minimal time to finish the software and the customer requirements in project.
- The tools are used by professional programmers in productivity levels...
Explanation of Solution
Application software packages and cloud software services (SaaS):
- The software packages is common tool for all business organizations for its daily process like payroll, inventory control, etc. Many organizations use cloud services for its higher security.
- SaaS is one of the cloud software services in cloud computing. In SaaS, the software is deployed from a cloud provider; internet is used to deliver the service and the subscribers access the service through the browser.
Advantages:
- Using application software packages, the organization got a solution in quick and easy way...
Explanation of Solution
Outsourcing:
Outsourcing means taking a company for contract to complete the specific task of some other company project using the in-house employees.
Advantages of outsourcing:
- Company takes specialized skills.
- Provides labor flexibility.
- Cost effective.
Drawbacks of outsourcing:
- Increases the confidence on third parties.
- Lacking the knowledge of in-house for complex business operations.
Favorable circumstances for the outsourcing strategy are as given below:
Lack in experience:
- Whenever there are less experienced professionals in any organization, then for a new system design, the organization always prefer the outsourcing strategy.
- Hence, the product is designed by the other firm.
Inadequate resources:
- If an organization does not have adequate resources, then outsourcing of the project must be done.
- Organization can hire different vendors, developers, or suppliers to meet their needs...
Explanation of Solution
Explanation of developing e-business applications:
- Developing e-business application is a needed one for every business for its development. RAD is the technology of process for developing systems in short period of time...
Explanation of Solution
Development of the mobile application:
- Smart phone tend to become more important part in every person’s day to day life routine.
- Every process required to be made in a smart manner and it is considered to be more important in case of the business process.
- Every customer requires process that is made should be effective a...
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3. Problem Description: Define the Circle2D class that contains:
Two double data fields named x and y that specify the center of the circle with get
methods.
• A data field radius with a get method.
•
A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius.
•
A constructor that creates a circle with the specified x, y, and radius.
•
A method getArea() that returns the area of the circle.
•
A method getPerimeter() that returns the perimeter of the circle.
•
•
•
A method contains(double x, double y) that returns true if the specified point (x, y) is inside
this circle. See Figure (a).
A method contains(Circle2D circle) that returns true if the specified circle is inside this
circle. See Figure (b).
A method overlaps (Circle2D circle) that returns true if the specified circle overlaps with this
circle. See the figure below.
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Figure (a) A point is inside the circle. (b) A circle is inside another circle.
(c) A circle overlaps another…
1. Explain in detail with examples each of the following fundamental security design principles: economy of mechanism, fail-safe default, complete mediation, open design, separation of privilege, least privilege, least common mechanism, psychological acceptability, isolation, encapsulation, modularity, layering, and least astonishment.
Security in general means the protection of an asset. In the context of computer and network security, explore and explain what assets must be protected within an online university. What the threats are to the security of these assets, and what countermeasures are available to mitigate and protect the organization from such threats. For each of the assets you identify, assign an impact level (low, moderate, or high) for the loss of confidentiality, availability, and integrity. Justify your answers.
Chapter 12 Solutions
Essentials of MIS (12th Edition)
Ch. 12.2 - Prob. 1CQ1Ch. 12.2 - Prob. 2CQ1Ch. 12.2 - Prob. 3CQ1Ch. 12.4 - Prob. 1CQ2Ch. 12.4 - Prob. 2CQ2Ch. 12.4 - Prob. 3CQ2Ch. 12.4 - Prob. 4CQ2Ch. 12 - What are the core problem-solving steps for...Ch. 12 - Prob. 2RQCh. 12 - Prob. 3RQ
Ch. 12 - 12-4 How should information systems projects be...Ch. 12 - Prob. 5DQCh. 12 - Prob. 6DQCh. 12 - Prob. 7DQCh. 12 - The Warm and Toasty Heating Oil Company used to...Ch. 12 - Prob. 9HMPCh. 12 - Prob. 11HMPCh. 12 - Prob. 13CSQCh. 12 - Prob. 14CSQCh. 12 - Prob. 15CSQCh. 12 - Prob. 16CSQCh. 12 - Prob. 17CSQCh. 12 - Prob. 18MLMCh. 12 - Prob. 19MLM
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