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Information Systems Development Exam
Study Guide.
Systems Development Life Cycle Phase 1 - Answers✔Planning
Systems Development Life Cycle Phase 2 - Answers✔Analyis
Systems Development Life Cycle Phase 3 - Answers✔Design
Systems Development Life Cycle Phase 4 - Answers✔Implementation
Systems Development Life Cycle Phase 5 - Answers✔Maintaince
What must organizations consider when developing information systems? - Answers✔Budgeting factors
Technological changes
Personal preferences
When developing an information system, what requirements must be clearly defined. -
Answers✔Cooperate
Expectations
Previous Work
Ask Questions
The Cooperate Requirement - Answers✔The information technology (IT) professionals must be willing to
work with the users to go through every test scenario to ensure that all requirements are addressed.
The Expectations Requirement - Answers✔To do this, the users must first identify everything the system
is expected to do. They can then work with the IT staff to explain their expectations.
The Previous Work Requirement - Answers✔One way to help identify all requirements is to examine the
inputs and outputs used previously, and make sure they have been addressed in the new system.
The Ask Questions Requirement - Answers✔When they communicate, both users and IT staff must ask
detailed questions and provide detailed answers regarding all possible requirements. When
organizations put the required time and effort into determining requirements, they improve their
chances for success in systems development.
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What happens when a requirement needs to be added? - Answers✔The process of adding a
requirement depends on how far along the team is in the development process. The larger the project
and the farther along it is in development, the more difficult it is to add functionality.
Changing Requirements Reworking Process - Answers✔Reworking Process
Changing Requirements Continuing Current Process - Answers✔The second option is to continue the
development process and add requirements as new features in future versions of the system
Changing Requirements Planning Ahead - Answers✔Adjusting requirements is not a simple task. The
difficulty of the adjustment process emphasizes the importance of determining all system requirements
before beginning development.
Budgeting Factors - Answers✔Organizations commit large resources to systems development and
expect a return on their investment. It is difficult to put a dollar figure on the cost of a systems
development project. Some tools that can be used to determine the system's cost include the following:
Cost-benefit analysis
Cost projections on systems development
Examining past projects and their costs
Personnel Requirements - Answers✔Identify requirements.
Ensure the system includes the requirements.
Test the system.
Assist in training their peers.
Possible Solutions - Answers✔Sometimes companies are not able to fully manage the needs of their
clients and customers due to a small staff or rapid growth. Businesses can use two possible methods
that provide solutions: outsourcing, or in-house consultants.
Outsourcing - Answers✔Companies choose to outsource work for various reasons, but the primary
reason is financial advantage. However, outsourcing can be problematic for companies as it eliminates
communication between the company and clients or patrons.
In-House or Consultants - Answers✔Unlike outsourcing, in-house operations are also viable business
solutions for a company. In the case of in-house operations, a company uses its own employees to
perform payroll, email, and call center services. Some companies use in-house staff to keep transactions
internal. For example, financing businesses use internal staff and resources to extend the customer's
credit.
If a company uses information systems, it will often use in-house software to manage its work based on
the needs of its business. However, if a company cannot afford, or does not have the resources to