Itqualityassurance
- What is real time validation?
- Which is the most effective means of validating user input?
- Should you validate on Blur?
- Why is input validation so important?
What is real time validation?
A real-time validation service will check your subscriber information for you as it is entered, correcting your customers' typos and misspellings. Visitors often leave out hyphens or misspell their emails' domain names, making it impossible to contact them in the future.
Which is the most effective means of validating user input?
In general, whitelist validation is the more powerful of the two input validation approaches. It can, however, be difficult to implement in scenarios where there is complex input, or where the full set of possible inputs cannot be easily determined.
Should you validate on Blur?
Don't validate while typing, for exactly the reason you describe. There are studies/observations that show the people generally complete the entire form and then return to values that are incorrect. Even if you validate on blur they will tend to complete all fields and will then return to fix.
Why is input validation so important?
Input validation is performed to ensure only properly formed data is entering the workflow in an information system, preventing malformed data from persisting in the database and triggering malfunction of various downstream components.
