Chapter 6 Business Logistics and Transportation
APS evaluates constraints
- Material (availability, safety stock levels) - Machines (set-up, sequence, capacity) - Manpower (labor capacity, competence) - Money (cost) - Methods (distribution requirements, due dates)
Basic Planning Formula
Beg. Inventory + Production - Demand = Ending Inventory
Supply planning uses requirements from demand management to develop a realistic manufacturing plan. Which one of the following represents the Basic Planning Formula?
Beginning Inventory (BI) + Production - Demand = Ending Inventory (EI)
sales and operations conflict
balancing objectives: - high working capital (inventories) - lower service levels - lower quality - lower margins
Basic "three-line" plan
demand supply projected inventory beginning inventory + supply (production) - demand = projected inventory (Ending inventory)
Supply Chain Planning
determining how best to satisfy the requirements created by the Demand Plan GOAL: balance supply and demand in a way that realizes the financial and service objectives of the company PLAN SOURCE MAKE DELIVER RETURN
mean absolute deviation (MAD)
evaluates absolute error by ignoring the sign of the error
time series
focuses entirely on historical patterns and pattern changes to generate forecasts - simple moving average - weighted moving average - exponential smoothing
irregular component
includes random or unpredictable quantities that do not fit other components
logistics planning
integrates overall movement demand, vehicle availability, and relevant movement cost into a decision support system that seeks to minimize overall freight expense
collaborative planning, forecasting, and replenishment (CPFR)
is a business practice that combines the intelligence of multiple trading partners who share their plans, forecasts, and delivery schedules with one another in an effort to ensure a smooth flow of goods and services across a supply chain - reduces the bullwhip effect
trend component
is along-range shift in periodic sales
seasonal component
is annual recurrnig upward or downward movement in demand
promotional component
is demand swings initiated by a firm's marketing activities
base demand
is long-term average demand after other components are removed
mean absolute percentage error (MAPE)
is mean MAD divided by mean demand
cyclic component
is periodic shifts in demand lasting more than a year
Demand Management
the demand management system is the information technology component of the sales and operations planning process
reducing inventory
through the use of just in time (JIT), vendor managed inventory (VMI), and quick response (QR), all of which will be discussed later in this course
multivariate
uses more complex statistical techniques to identify more complex demand history relationships; techniques include spectral analysis, fourier analysis, transfer functions, and neural networks
regression
uses other independent variables, such as price, promotion plans, or related product volumes, to predict sales
causal
uses specific information to develop relationships between lead events and forecasted activity - regression - multivariate
forecasting
- a forecast is what is projected to be sold and when - forecasting is a critical capability as many logistics and other supply chain activities must be completed in anticipation of a sale - to achieve enhanced service or reduced inventory
planning processes
- business planning - sales and operations planning - advance planning and scheduling - collaborative planning, forecasting and replenishment
common software applications for the planning environment include
- demand planning - supply planning - logistics planning - inventory deployment
Forecast challenges
- demand variability - scale of information from marketing and sales - promotions - increased complexity - impact of supply issues on forecasting
CPFR Process STeps
- develop a joint business plan - create a joint calender to determine product flow - create a common sales forecast based on shared knowledge of each trading partner's plan - use the common sales forecast to develop - production plan - replenishment - shipment plan
Benefits of Integrated Operations Planning
- facilitates more effective planning with shorter cycle times - offers capability to consider the extended supply chain and make appropriate trade-offs to achieve optimal performance - more effective and responsive planning allows a more level assignment resources for existing sourcing, production, storage and transportation capacity - greater integration with financial plans - increased inclusion of strategic initiatives and activities - improved simulation and modeling of alternatives - easier translation between aggregate and detailed planning levels
forecasting requirements
- forecasts match the product requirements of customers with capacity of the supply chain - forecasts must be timely and accurate to align customer demands for higher service levels and more product variations with a management focus to reduce supply chain assets
Benefits gained from APS
- improved throughout times - improved delivery times - optimum inventory levels - better resource utilization - improved customer service levels - reduction in costs - mitigating the bullwhip-effect - enabling CPFR
The Bullwhip Effect
- in the absence of any other information or visibility, individual supply chain participants are second-guessing what is happening with ordering patterns and potentially over-reacting, creating the bullwhip effect
supply chain visibility
- into location status of supply chain inventory and resources - exception management for changes in the flow to minimize/prevent potential problems
how does APS work?
- it utilizes planning and scheduling techniques, considering all demand needs and supply limitations, to produce an optimized plan based on mathematical modeling
simultaneously resource considerations
- sequential decision making = sub-optimal planning and capacity utilization - to identify trade-offs where increases in some functional costs may lead to lower total system costs
resource utilization
- supply chain decisions influence many enterprise resources which consume a substantial proportion of a firm's assets - functional management must focus on resource utilization within the scope of their responsibility
Drivers of Effective Supply Chain Planning
- supply chain visibility - simultaneously resource considerations - resource utilization
forecasts are necessary to
- support collaborative planning - drive requirements planning - improve resource management through cost trade-offs of strategies
quantitative
- time series - causal
keys to S&OP Implementation
1) executing the process every month 2) process ownership and clarity of roles and responsibilities 3) organizational commitment to achieving high forecast accuracy 4) focus should be on the next 3 to 12 months 5) one plan that integrates the actions of the entire organization 6) senior management decision making 7) measuring end-to-end supply chain performance 8) S&OP forecast versus operating plan or budget
Major benefits of CPFR
1) improved customer service through better forecasting 2) lower inventories for higher profits 3) improved ROI on technology investment 4) improved relationships between trading partners 5) cost reduction
Which of the following is NOT a benefit of Integrated Operations Planning?
A. Greater integration with enterprise financial plans B. Increased inclusion of strategic initiatives and activities. C. Improved simulation and modeling of alternatives. D. Easier translation between aggregate and detailed planning levels. E. Only A, B, and D are benefits of Integrated Operations Planning Correct F. All of the above are benefits of Integrated Operations Planning
CPFR improves customer service by driving inventories up through collaboration with customers on their demand.
FALSE
There are eight (8) keys to successful S&OP implementation. Which of the following is NOT one of them?
Focus on the short-term.
QUIZ
QUESTIONS
Which of the following forecasting techniques "focuses entirely on historical patterns and pattern changes to generate forecasts"?
Time Series
Integrated Operation Planning
a dominant theme of supply chain management is the achievement of operational integration - BENEFITS - directly related to capturing efficiencies between function within an enterprise
Advanced Planning and Scheduling (APS)
a manufacturing management process by which raw materials and production capacity are optimally allocated to meet demand
sales and operations planning
a process that brings all the demand and supply plans for the business together to provide management with the ability to strategically direct the business to achieve a competitive advantage - it is the definitive statement of the company's plans for the near to intermediate term - preformed once a month - covers a horizon sufficient to plan for resources - reevaluated annually - making S&OP work in an organization requires senior leadership involvement
weighted moving average
a weighted average of the previous periods of sales
exponential smoothing
an exponentially weighted moving average using a smoothing constants to place greater weights on more recent demands
Simple Moving Average
an un-weighted average of the previous periods of sales
qualitative
relies on expert opinion, intuition and special information
collaboration
sharing information through the use of electronic data interchange (EDI), point of sale (POS) data, and web-based systems can facilitate collaboration
synchronizing the supply chain
supply chain paticipants coordinate planning and inventory management to minimize the need for reactionary corrections