Validating user

It is entirely possible that a product passes when verified but fails when validated.

This can happen when, say, a product is built as per the specifications but the specifications themselves fail to address the user's needs.

Active Control property to the current form, focus events occur in the following order Enter Got Focus Leave Validating Validated Lost Focus When you change the focus by using the mouse or by calling the Focus method, focus events occur in the following order: Enter Got Focus Lost Focus Leave Validating Validated event provides the hook to perform the validation and Error Provider gives a nice consistent approach to providing the user with feedback on any error conditions.

Verification and validation are independent procedures that are used together for checking that a product, service, or system meets requirements and specifications and that it fulfills its intended purpose.

" "Building the right thing" refers back to the user's needs, while "building it right" checks that the specifications are correctly implemented by the system.

In some contexts, it is required to have written requirements for both as well as formal procedures or protocols for determining compliance.

The full scales of some equipment qualifications are even time dependent as consumables are used up (i.e.Verification of machinery and equipment usually consists of design qualification (DQ), installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ).DQ may be performed by a vendor or by the user, by confirming through review and testing that the equipment meets the written acquisition specification.Validation work can generally be categorized by the following functions: In GLP accredited laboratories, verification/revalidation will even be conducted very often against the monographs of the Ph.Eur., IP to cater for multinational needs or USP and BP etc to cater for national needs.

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