备份
2017-04-06 17:26:45 0 举报备份，也称为数据备份，是指将计算机系统中的数据复制到其他存储介质中的过程。这样做的目的是为了防止原始数据丢失或损坏。备份可以分为完全备份、增量备份和差异备份三种类型。完全备份是将计算机系统中的所有数据都复制到另一个存储介质中；增量备份只复制自上次备份以来发生变化的数据；差异备份则只复制自上次完全备份以来发生变化的数据。备份可以通过手动或自动方式进行。手动备份需要用户手动选择要备份的文件和目录，并将其复制到另一个存储介质中；而自动备份则由计算机系统自动完成。总之，备份是一项重要的数据安全措施，可以有效防止数据丢失或损坏。
作者其他创作
大纲/内容
Select Local Path Window
Double click one question
\"Login\" [Incorrect Password] / warning
\"print\"
Notice Window
\"Cancel\"
\"Save\"
Rubric Page
\"Still Exit\"/do not save
\"add\" / a new item row displayed
clear the name of one question and make its percentage into zero/ delete one question
select the type of searching and input student name or grade class [hasn't graded]/warning
\"OK\"[select nothing]/ Give a warning
press \"Enter\" after inputting keyword in search bar [student/grade class exist] / list re-display
Select Rubric Window
Add/Edit Course Page
press \"Enter\" after inputting keyword in search bar [student/grade class doesn't exist] / warning
\"Submit[no same course name exist]\" / a new course name displayed
select the type of searching and input student name or grade class [graded]/ list display
\"Save\" [100%] / Save
\"Edit\"
Select file window
\"Load\"[Incorrect file format]/ Warning
\"Sort\" by student ID or grade / list re-display
Add Work page
click one cell of questions
\"OK\" [setting right] / start printing
click \"previous\" or \"next question\" or \"next student\" [finish current grading] / page shift
\"load\" [file format wrong] / warning
Student list\"Upload\"
\"Final Score\" [not 100%] /give a message
Rubric \"Add\"
Main Page
\"cover\"[file format right] /Rubric display
Rubric Window
Edit Work page
\"load\" [file format right] / Rubric display
\"Upload\"
\"plus\" button in white area/ Add one question
\"download\"
\"Logout\"
\"Add\"
Grade List Page
\"OK\"[One rubric selected]
\"Back\"
Click one work name
\"Load\"[Correct file format]/ Upload
Student List Page
select course and rubric name in drop-down menu/ specific rubric displayed
\"plus\" button in grey area/ Add one day for late deduction
Click Student List Name
\"OK\" [setting error] / warning
click \"previous\" or \"next\" or \"next student\" [not finish current grading] / warning
Click \"Remove\" icon of one rubric/ remove one rubric
Connect Printer Window
\"Save\" [not 100% or wrong rule for late deduction or same name exist]/ Give warning
press \"Enter\" after inputting keywords in search bar [ doesn't exist] /display nothing
clear one item content and move mouse to other places in the page/ this item delete
\"Login\" [Correct Password]
Click \"Delete\" button for one work/ One work is removed
Login
press \"Enter\" after inputting keywords in search bar [exist] /rubric display
\"plus\" bottom in grey area/ Add one day for late deduction
\"Submit\" [same course name exist] / warning
\"Back\"[not finished grading]
Click \"Delete\" button of one specific course/ One course is removed
Grading Page
\"Submit\"/ stores data and displays a message box
Final Score Page
Select File Window
\"Final Score\" [100%]
click one course in list
\"Submit\" [percentage isn't 100% or some items repeated ] /warning
Course Page
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