Exam 14: Maintaining Information Systems

________ is/are the guidelines that list the instructions to construct an executable system from the baseline source code.

MTBF is a measurement of ________ occurrences that can be tracked over time to indicate the quality of a system.

A primary objective of using automated tools for systems development and maintenance is to radically change the way in which code and documentation are modified and updated.

Of all types of maintenance,which maintenance accounts for as much as 75 percent of all maintenance activity according to Andrews and Leventhal?

Systems with ________ maintainability result in uncontrollable maintenance expenses.

What is the most common maintenance issue for Web sites?

When corrective maintenance problems surface,they are typically urgent and need to be resolved to curtail possible interruptions in normal business activities.

Preventive maintenance adds little or no value to the organization and it simply focuses on removing defects from an existing system without adding new functionality.

MTBF stands for ________.

In which maintenance type are changes made to a system to add new features or to improve performance?

In which maintenance type are changes made to a system to evolve its functionality to changing business needs or technologies?

Implementing changes and designing changes are not major maintenance activities.

Quality documentation makes it easier to find code that needs to be changed and to understand how the code needs to be changed,and good documentation also explains why a system does what it does and why alternatives were not feasible,which saves wasted maintenance efforts.

"Personnel has a vested interest in effectively maintaining the system and has a better understanding of functional requirements" is an advantage of which maintenance organizational structure?

What are some reasons why organizations should be concerned with how they manage and assign maintenance personnel?

In perfective maintenance,changes are made to a system to add new features or to improve performance.

Because the maintenance phase of the SDLC is basically a subset of the activities of the entire development process,the deliverables and outcomes from the process are the development of a new version of the software and new versions of all design documents developed or modified during the maintenance process.

In which SDLC phase are changes made to a system to fix or enhance its functionality?

Automated tools that read program source code as input; perform an analysis of the program's data and logic; and then automatically,or interactively with a systems analyst,alter an existing system in an effort to improve its quality or performance are known as ________.

Once an information system is installed,the system is essentially in which phase of the systems development life cycle (SDLC)?