Question 1

The ________ phase of the waterfall method involves nailing down requirements, at which point the developers estimate the time and resources needed to complete a project.

Accepted Answer

The analysis phase of the waterfall method is when requirements are gathered and documented, and developers estimate the time and resources needed to complete the project. The implementation phase involves actually building the solution, while development refers to the entire process of building the solution. Testing occurs later in the process, after development is complete.

Question 2

Which of the following do all types of information system tests mimic?

Accepted Answer

All types of information system tests are designed to mimic events or scenarios that the system is likely to encounter when it goes live. This includes testing for functionality, usability, security, and performance. By simulating different scenarios, testers can identify any weaknesses, bugs, or limitations in the system before it is delivered to users. This helps to ensure that the system is reliable, stable, and effective in meeting the needs of its users.

Question 3

Which of the following will take place in a parallel implementation of an information system?

Accepted Answer

Parallel implementation involves running the new system alongside the old one for a period of time to ensure the new system works correctly before fully transitioning to it.

Question 4

Which of the following is a disadvantage of a parallel implementation of an information system?

Accepted Answer

A parallel implementation of an information system involves running both the old and new systems at the same time. This can be expensive as it requires additional hardware and personnel to maintain both systems. Additionally, the parallel process is usually in place for a short period, as once the new system has been deemed stable and functional, the old system is phased out. However, A, C, and D are not accurate disadvantages of a parallel implementation.

Question 5

Which of the following occurs during a phased implementation?

Accepted Answer

Phased implementation involves launching different modules or aspects of the new system in steps or stages rather than all at once. This approach allows for a more manageable transition and reduces the risk of system failure or user resistance. Focusing on different departmental groups at a time or launching the new system while the old one is still running are also possible components of a phased implementation, but they are not the defining characteristics. Launching all the modules of the new system on a single go-live date is not a phased implementation approach.

Question 6

Independent testers are critical in testing information systems mainly because ________.

Accepted Answer

Independent testers bring a fresh perspective to testing and can identify issues and flaws that may be overlooked by the programmers who created the system. It is not necessarily because programmers are inept or too busy, but rather the benefit of having an objective and unbiased assessment of the system. There are no federal or state laws mandating third-party feedback, although certain industries or organizations may have their own regulations or standards.

Question 7

Escapade Inc., a travel agency in Sydney, is using a highly expensive implementation process for a short period of time. It launches the new system while the old one is still running and employees have to do their jobs twice, once on each system. Which of the following is the company using?

Accepted Answer

The scenario describes a situation where the new system is launched while the old one is still running, and employees have to use both systems simultaneously. This is a characteristic of a parallel implementation, which allows a gradual transition from the old to the new system, but requires duplicating efforts during a short period of time. Phased implementation would involve rolling out the new system in phases or modules, while the old system is gradually phased out. Direct implementation would involve immediately replacing the old system with the new one. Pilot implementation would involve testing the new system in a small group or department before rolling it out to the entire organization. None of these alternatives match the scenario described in the question.

Question 8

A disadvantage of a ________ is that the new system's modules may be tightly integrated, so implementing one without the others may create some confusion and require temporary interfaces to the old systems.

Accepted Answer

Phased implementation is a process that involves implementing a new system in stages or phases. A disadvantage of this approach is that the new system's modules may be tightly integrated, so implementing one without the others may create some confusion and require temporary interfaces to the old systems. This can lead to disruption of normal operations and higher costs.

Question 9

Which of the following is a drawback of the waterfall method?

Accepted Answer

The waterfall method is a linear process, where each phase must be completed before moving on to the next. This makes it difficult to adapt to changes in the business landscape, as it assumes that everything is planned and defined upfront. Any changes would require restarting the entire process, which can be time-consuming and costly.

Question 10

A ________ switches off the old system and launches all the modules of the new one on a single, very hectic go-live date, sometimes called the "big bang."

Accepted Answer

The description matches direct implementation, where the new system replaces the old one in one go-live event. The other choices (phased, parallel, and pilot implementation) involve a more gradual and/or simultaneous approach for introducing the new system while minimizing risk and disruption.

Question 11

Which of the following is a type of testing for information systems where developers use the same input and compare the new system's output to the output generated by the system it is replacing?

Accepted Answer

This type of testing is called parallel testing, where both the old and new systems are used simultaneously with the same inputs, and their outputs are compared for accuracy. This helps to ensure that the new system is working correctly and producing the same results as the old system.

Question 12

The ________ refers to a process organizations put into place to manage and prioritize requests to add new features to an information system.

Accepted Answer

The change control process is specifically designed to manage and prioritize requests for new features or changes within an information system. Conformity assessment and calibration processes are more focused on quality control, while requirements analysis is a broader term that encompasses a range of activities related to defining user needs and system capabilities.

Question 13

________ refers to the creation of software prototypes that can be shared with users for receiving feedback, so that developers can make improvements before a lot of effort is spent building a fully functioning version.

Accepted Answer

Rapid application development (RAD) refers to the process of creating software prototypes quickly for user feedback and improvements before building a fully functional version. This approach is aimed at reducing the time and cost of software development, while ensuring that end-users' needs and requirements are met.

Question 14

The ________ compresses the time horizon for software development and focuses on the time available until the next release while the development team determines how many of the requirements it can deliver in that time frame.

Accepted Answer

The answer of The ________ compresses the time horizon for...

Question 15

A ________ is often the only logical implementation strategy for smaller systems.

Accepted Answer

Direct implementation would be the best choice for smaller systems as it involves implementing the new system all at once, which is logical and feasible for smaller systems. This strategy eliminates the need for complex planning, testing, and training required in phased, pilot, or parallel implementation. The direct implementation can be a cost-effective, efficient, and time-saving approach for smaller systems that do not need extensive checks and balances.

Question 16

A ________ of an information system launches the new system while the old one is still running and employees either do their jobs twice or two separate teams handle the same processes.

Accepted Answer

A parallel implementation involves launching the new system while still using the old one, allowing for a direct comparison and ensuring that employees can continue their work without interruption. This is different from phased implementation, which involves gradually implementing parts of the new system, and direct implementation, which involves complete replacement of the old system at once. Pilot implementation involves testing a small-scale version of the new system before implementing it on a larger scale.

Question 17

Which of the following is an advantage of a parallel implementation of an information system?

Accepted Answer

A parallel implementation of an information system involves running two simultaneous systems processing the same cases to ensure that the new system produces the same output as the existing one. This reduces the risk of errors and downtime during the transition to the new system, which is an advantage. The other options are not accurate descriptions of a parallel implementation or are not advantages.

Question 18

The ________ involves the sequential occurring of systems development life cycle tasks, with one activity starting only after the previous one has been completed.

Accepted Answer

The description provided in the question is of the waterfall method, which involves a sequential occurrence of the systems development life cycle tasks. The iterative and agile methods involve more overlapping and flexible processes where tasks may not necessarily happen in a strict sequence, and the Gauss-Seidel method is not related to systems development life cycle tasks.

Question 19

A major advantage of a ________ is that people whose roles span modules do not have to switch back and forth between old and new modules.

Accepted Answer

Direct implementation involves switching completely to the new system at once, eliminating the need for users to switch between old and new modules.

Question 20

Which of the following best describes legacy systems?

Accepted Answer

Legacy systems are old systems that were built on aging or obsolete architectures. They may still be in use or have been replaced by newer technology, but they are typically difficult to maintain or upgrade due to their outdated design. A, B, and D are incorrect because they do not accurately describe legacy systems.

Quiz 11: Systems Development and Procurement