lesson 2 Flashcards
in operations management it refers to a prediction of future demand for products or services over a specified future time period.
forecast
is a vital activity that influences decision-making related to production, inventory management, capacity planning, and resource
allocation, among other areas.
forecasting
Forecasting can be based on?
historical data, qualitative analysis, statistical
methods, or a combination of these
What is the main aim of forecasting in operations management?
to align operational activities and resources with anticipated demand to efficiently
meet customer needs while optimizing costs.
Used for decisions related to day-to-day operations, such as
scheduling, inventory ordering, and production runs. It typically spans days to a few months.
Short-term forecasts
Used for decisions related to resource allocation, capacity planning, and budgeting. It usually spans from a few months to a couple of years.
medium-term forecasts
Focuses on strategic decisions like business growth, capital investments, and entering new markets. It covers time frames that are several years
or more.
Long-term Forecasts
Relies on expert judgment, intuition, and subjective assessments. It is typically used when historical data is not available, such as
for new product launches.
Qualitative Forecasting
Employs mathematical models and historical data to predict future demand. Common methods include moving averages,
exponential smoothing, and regression analysis.
Quantitative Forecasting
Regularly updating forecasts is essential. As
new data becomes available or
market conditions change,
adjustments are needed to ensure
the forecast remains relevant.
Frequency of Updates
All forecasts will have to account for
the various factors or components
of variation, such as trend,
seasonality, cyclic variations, and
random fluctuations.
Components of Variation
Elements of Good Forecast
•Accuracy
•Timeliness
•Reliability
•Simplicity
•Cost Effective
•Clear Assumptions
Another Elements of Good Forecast
• ADAPTABILITY
•APPROPRIATE TIME HORIZON
•FEEDBACK MECHANISM
•COLLABORATION
•DOCUMENTEDPROCESS AND METHODOLOGY
•BIAS MINIMIZATION
•CONSISTENCY
Steps in Forecasting Process
- Problem Definition
- Gathering Information
- Choosing a Forecasting Method
- Developing the Forecast
- Testing the Forecast
- Implementing the Forecast
- Monitoring and Control
- Feedback and Adjust
- Documentation
- Continuous Learning