Which of the following is NOT a technique used to identify opportunities for improvement in business?

Time-series analysis is primarily used to analyze trends over time, such as sales forecasts or checking the performance of a business over specific periods. It focuses on understanding historical data to predict future behavior rather than directly identifying opportunities for improvement within the current processes or strategies of a business.

In contrast, the other techniques mentioned are specifically designed to help organizations pinpoint areas where they can enhance performance or workflow. SWOT analysis evaluates strengths, weaknesses, opportunities, and threats, helping businesses identify potential improvements. The fishbone framework, also known as the cause-and-effect diagram, assists in identifying various causes of a problem, effectively leading to improvement areas. The Pareto chart, which identifies the most significant factors affecting a situation, aids in prioritizing issues for improvement.