Supply Chain Optimization
With the advances in logistics and
supply chain management technology in recent years, there’s been an explosion
of interest in the topic of “Supply Chain Optimization”. While many businesses
leaders have heard the term used, few know exactly what Supply Chain
Optimization is, or how it could help their business. In this article, I’m
going to explain what supply chain optimization is, as well as help you decide
how it could help your business. Supply chain optimization is just that –
optimizing your supply chain. A more precise definition is that supply chain
optimization is the practice of combining resources in a supply chain with the
intent of eliminating bottlenecks and other problems that interfere with the
process and helping the supply chain function in a more smooth, timely and
cost-effective manner.
Generally speaking, supply chain
optimization begins with the use of advanced planning and scheduling (APS)
technology. This technology uses various methods to analyze supply chain data
and create simulations that help supply chain planners make decisions that help
them reach their goals more effectively.
For example, if a company’s supply
chain managers want to pursue a course of action that wouldn’t be feasible
based on available resources, APS technology can alert them to this beforehand,
saving them precious tie and money. Furthermore, this technology allows
planners to decide on an alternate course of action that would allow them to
achieve the objective they wish to achieve through other means.
While the concept of supply chain
optimization has been around for years, given the immense logistical
complexities of today’s interconnected and global marketplace, supply chain
optimization and the benefits that it provides become less of a luxury and more
of a necessity with each passing day.
One of the key factors that has
led to this rise in the importance of optimizing the supply chain system is
customer preference and demand. As customers have grown more accustomed to
instant-gratification-oriented services, such as e-commerce and express
delivery, and as the internet has provided them with an ever-increasing range
of products and vendors to choose from, businesses have been forced to adapt by
maximizing the speed and efficiency with which they can get the product to the
customer.
For example, just a few decades
ago, a customer would have gladly been willing to wait several weeks for a
piece of electronics equipment to arrive in the mail. Now, customers not only
expect an option for next day delivery when they place the order, but the
company that lacks the means to fulfill this expectation risks driving the
customer straight into the arms of the competition.
Also, as mentioned earlier, the
globalization of applications such as marketing and distribution has led to the
creation of the global supply chain and added additional layers of complexity
to the process. Companies now routinely have production and storage facilities,
offices, and customers located on the other side of the world. All of these facilities
and customers have needs that have to be fulfilled on time if the company wants
to maintain its profits.
How Supply Chain Optimization Solves Problems
Many companies have come to
realize the value of supply chain optimization not only for improving customer
satisfaction, but also for keeping their supply chain costs to a minimum.
Specifically, optimizing your supply chain is done with the purpose of
eliminating or at least minimizing the supply chain issues that would normally
arise when either time or resources are limited.
Because it takes time to acquire
materials, manufacture products, and deliver these products to customers, and
even the largest and most established companies have limited resources for
performing these activities, a considerable effort must be made in order to
keep customers happy. This effort begins with advanced and detailed planning,
and continues with effective execution of that plan. However, even under the
best of circumstances, problems arise. Supply chain optimization attempts to
systematically prevent those problems from arising or to provide solutions to
them if they do arise.
Problems in the supply chain
process are typically either internal or external. An internal problem could be
one that stems from decisions that the supply chain planner has to make, such
as when to order and when to ship. An external supply chain problem, on the
other hand, is one that stems from the supply chain itself, such as a supplier
experiencing a shortage of materials or parts, or a lag-time in the
distribution network.
Of the various types of problems
that can affect the functioning of a supply chain, some are more serious than
others. For example, if a delivery truck has a maximum carrying limit of 500
Widgets, deciding to pack 600 widgets in order to meet a deadline could be
destructive to the widgets and the vehicle, or even dangerous to the driver and
others.
On the other hand, a customer
having to wait two extra days for his widget to arrive due to short supply is a
much less pressing issue, provided that this is a very rare occurrence.
Furthermore, in the event that a delivery gets delayed, a company can also
choose to give the customer a reward (eg: a coupon towards their next purchase)
as a gesture of apology and goodwill.
Typically, supply chain
optimization efforts make use of models designed to represent how these
internal and external factors (constraints) relate to the company’s desired
objectives. These models need to be as realistic as possible in order to
accurately describe the problem that the company is facing and improve supply
chain efficiency.
The models used in calculating a
solution to an optimization problem are usually used to create a solver, which
is a mathematical formula, or algorithm embedded into a computer program and
designed to arrive at a logical solution that helps the company achieve its
objectives.
There are three types of logical
solutions that a computer can suggest to solve an optimization problem. These
three types of solutions are known as feasible, optimal, and optimized. A
feasible solution is one that solves the constraint, but may or may not
accomplish the company’s objective. An optimum solution is one that achieves
the company’s objective. Usually the best feasible solution becomes the optimum
solution. An optimized solution is one that achieves the company’s objective in
a way that is satisfactory, but not necessarily optimum. In other words, an
optimized solution accomplishes at least part of the company’s objective, but
isn’t necessarily the best solution to the problem.
So for example, a feasible
solution to the problem of labor strike that causes a widget shortage which
threatens to delay customer delivery dates might be for XYZ Widgets, Inc. to
hire a labor negotiator to try and resolve the dispute. While this solution
might resolve the immediate product constraint by ending the strike, it would
not necessarily accomplish XYZ Widgets, Inc’s objective of getting the widget
to the customer by the expected date.
An optimum solution might be to
temporarily partner with a secondary widget supplier so that the widgets could
still be delivered to the customer on time. This solution accomplishes the XYZ
Widgets, Inc’s goal of fulfilling the expected delivery date.
An optimized solution to the problem
might be to ship the widgets to the customers at a later date after the strike
has ended. While this doesn’t accomplish the company’s objective of getting the
widgets to the customers on time, it does accomplish their goal of getting the
widgets to the customers. As such, this is a partial solution to the problem.
Three Keys to Effective Supply Chain Optimization
Solvers, data and models are the
three most important elements in any supply chain optimization effort. The
relationship between the three is that data is used to create a model, and the
model is used to create a solver.
Because of this relationship, it
is vital when creating a model that the data fed into the model be accurate. If
the data is not valid, an incorrect model will be generated, resulting in an
ineffective solution to the optimization problem.
However, depending on the level of
supply chain planning, detailed data and models are not always necessary.
Generally, the higher-up levels of supply chain planning, such as strategic
planning, do not need extremely detailed models and source data. For these
higher-up levels, data such as general demand trends may be sufficient. On the
other hand, tactical planning usually does necessitate detailed models with
specific amounts, dates and numbers.
In conclusion:
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Supply chain optimization encompasses
the entire process of combining resources in a supply chain with the intent of
streamlining the process and leading to faster, more efficient and more
profitable results.
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Supply chain optimization uses models
and planning to formulate solutions to internal problems and external problems.
Internal supply chain problems can take the form of complex decisions that the
supply chain planner has to make, while external problems stem from the supply
chain itself.
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Three keys to effective supply chain
planning are data, models and solvers. Data is information about the supply
chain, which is used to create a model. The model, which is a representation of
the supply chain problem, is then used to create a solver. As such, the
solution to a supply chain problem always begins with effective data.
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The trend recently has been towards
holistic approaches to optimization. A holistic approach takes into account the
various aspects of the supply chain process in order to generate a synergistic
whole. This greater trend has focused on three micro-trends: synchronized
concurrent planning, synchronizing planning levels, and real-time planning and
execution.
So as you’ve seen, supply chain
optimization is a complex and evolving field with many applications. Taking
advantage of these applications is a crucial part of ensuring that your
business remains profitable and your customers remain happy. While it would be
impossible to include all the nuances of this process in just one article,
hopefully the information provided here will set you on the path to learning
more about how this process can best fit your business.