Chapter 13, Problem 4RQ

Explanation of Solution

Traditional Systems Life Cycle:

• It is a highly structured process that has been in deployment since the 1950s.
• It is generally a 5 or 6 step process or stages that a project would go through.
• Also known as Systems Development Life Cycle (SDLC), is a very formal process with the below mentioned stages:
  • System Analysis
  • System Design
  • Programming
  • Testing of system
  • Conversion/ Implementation
  • Production a...

Explanation of Solution

Information Systems Prototyping:

• It is a radical approach than traditional systems but is only a working model that is developed in a test environment.
• It a repetitive, iterative approach and a hit or miss approach.

Advantages:

• When initial end user requirements are not clear, this method is the best approach.
• It is suitable for end-user interfaces.
• It can expedite the process while working with end users.

Disadvantages:

• There is high possibility for ignoring key steps in this process which is a dangerous flaw in getting the desired output on time...

Explanation of Solution

Application Software Package:

• It is a complete solution offered in a single package for a user, requiring minimum adjustments or requirements.
• The application providers cover product support for a period of time after delivery or through a setup of a maintenance contract.

Advantages:

• It is a quick and easy solution for generalised processes in an organisation.
• For example, basic features of accounting, human resources, and so on.
• A cost-effective approach to buy as a package rather than implementing a system from scratch...

Explanation of Solution

End-User Development:

• It provides user the ability to develop systems that require no or very less formal assistance from information system technologies.
• These days fourth generation language programs ensure for development of these packages.

Advantages:

• A solution for end user completely fulfilling its needs and requirements.
• They can be developed so it is easy to be applied in an existing workplace.
• These tools can provide an opportunity to improve programmer’s productivity.

Disadvantages:

• They are not suitable for heavy use or massive amounts of data...

Explanation of Solution

Outsourcing of Information systems development:

• Outsourcing is to allow a company with specialised knowledge and expertise to fulfil the user requirements.
• Cost is a big driver and company can utilise outsourcing when information system is not its core operations or in case its resources are limited.

Advantages:

• Company can save its resources as well as reduce costs by hiring external agencies rather than hiring additional manpower.
• It can depend on specialists to provide high quality solutions rather than developing systems in its own premises.
• Develop relationship and better experience...