Software faults occur through the following processes. A programmer makes an error (mistake), which results in a defect (fault, bug) in the software source code. If this defect is executed, in certain situations the system will produce wrong results, causing a failure. Not all defects will necessarily result in failures. For example, defects in dead code will never result in failures. A defect can turn into a failure when the environment is changed. Examples of these changes in environment include the software being run on a new computer hardware platform, alterations in source data, or interacting with different software. A single defect may result in a wide range of failure symptoms.
Software faults occur through the following processes . A programmer makes an error ( mistake ) , which results in a defect ( fault , bug ) in the software source code . If this defect is executed , in certain situations the system will produce wrong results , causing a failure . Not all defects will necessarily result in failures . For example , defects in dead code will never result in failures . A defect can turn into a failure when the environment is changed . Examples of these changes in environment include the software being run on a new computer hardware platform , alterations in source data , or interacting with different software . A single defect may result in a wide range of failure symptoms .
When can software defects in dead code cause problems?
When can software defects in dead code cause problems ?
run on a new computer hardware platform
run on a new computer hardware platform