A change to the agreed scope, design, quantity, sequence or conditions that is valued under the applicable quote or contract terms.
Why it matters
Variations should be instructed, priced and recorded so the project team can track their effect on cost and programme.
Example in practice
The client instructs a different floor finish and the contractor records the material and labour adjustment before ordering.
Use the term carefully
State the scope, amount, adjustment method or contract meaning whenever this term could change who carries cost or risk.