________ is the process of safeguarding against erroneous or duplicate data by checking what is entered and, in some cases, placing restrictions on how the data is entered.
A. Risk assessment
B. Interoperability
C. Data mining
D. Data validation
Answer: D
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Consider a simple intersection with two crossing roads and four traffic lights. Assume a simple algorithm for switching lights, so that the traffic on one road can proceed while the traffic on the other road is stopped. Model each traffic light as an instance of a TrafficLight class with a state attribute that can be either red, yellow, or green. Write invariants in OCL on the state attribute of the TrafficLight class that guarantee that the traffic cannot proceed on both roads simultaneously. Add associations to the model to navigate the system, if necessary. Note that OCL constraints are written on classes (as opposed to instances).
What will be an ideal response?
Changes to data are saved automatically, but can be undone while the table or form is open by using the Undo button
Indicate whether the statement is true or false
Page numbers can be modified by changing the number ________
Fill in the blank(s) with correct word
What type of content control would you use for simple numeric calculations?
A) Formula B) Smart C) Number D) Text