An Issue Statement describes the purpose of an improvement project in terms that supports clear measurement and provides a focus for the improvement work, e.g.
The statement has three parts.
Note that there is no target included. If necessary, this may be added as a separate statement, although sometimes giving the objective of changing something can result in a far better improvement being made than was expected. Targets can thus, paradoxically, be limiting as the people working in the project reach the target and stop thinking about improvements.