Exam 14: Maintaining Information Systems

As with the initial development of the system,implemented changes are formally reviewed and not tested before installation into operational systems.

Most companies have some sort of document like a(n)________ to request new development,to report problems,or to request new features within an existing system.

List the special issues and procedures encountered when maintaining Web sites.

In the maintenance phase,the systems development group is responsible for collecting maintenance requests from the network management staff.

Revision code control tools extend revision control to not only a single module,but to any interrelated files to the module being changed.

To avoid confusion with Web site changes,one can post indications of future enhancements to the site and can batch changes to reduce the frequency of site changes.This is known as ________,for Web site maintenance.

Once a maintenance request is received,design must be conducted to gain an understanding of the scope of the request.

A final aspect of managing maintenance is reverse engineering,which is the process of ensuring that only authorized changes are made to a system.

Number of failures is one of the factors for measuring maintenance effectiveness.

Describe the two methods for maintaining a Web site 24/7/365?

Contrary to corrective maintenance,________ maintenance is generally a small part of an organization's maintenance effort,but it adds value to the organization.

There are various types of maintenance requests-some correct minor or severe defects in the systems,whereas others improve or extend system functionality.

"All things cannot be documented,so the maintenance group may not know critical information about the system" is a disadvantage of which maintenance organizational structure?

The process of ensuring that only authorized changes are made to a system is known as ________.

Automated tools that read program source code as input and create graphical and textual representations of design-level information such as program control structures,data structures,logical flow,and data flow are known as ________.

What type of maintenance was being performed on PVC's Webstore to improve system reliability?

Measuring the number of and time between failures will provide you with the basis to calculate a widely used measure of system quality.This metric is referred to as ________.

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

When various maintenance personnel working on different maintenance tasks complete each task,the librarian notifies those still working that updates have been made to the baseline modules.

Tools that can automatically generate new code based on system specification changes can dramatically ________ maintenance time and costs.