Provision should include

• addressing specific accomplishments and strengths
• encouraging others toward positive change
• fostering a sense of teamwork
• fostering positive workplace morale
• affirming a mutual stake in the work at hand (the product or process being criticized)
• addressing the negative only in specific terms, not generalized
• specifying a direction or action for improvement
• identifying the positive change to be made. 

Process/Skill Questions:

• What is the difference between constructive and destructive criticism?
• How does one know when and how to use praise?
• How can constructive praise and criticism be used to boost employee morale?
• What is the difference between constructive praise and flattery?