Chapter 12, Problem 2RQ

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Alternative methods of building information system:

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...

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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...

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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...

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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...