## What is a constrained demand?

The adjusted demand plan or forecast after applying constraints, such as production capacity or material shortages. In other words, constrained demand is equal to orders received minus orders that won’t be fulfilled for one reason or other.

### What does unconstrained demand mean?

Unconstrained demand is an estimate of the total demand for your hotel, ignoring rate and capacity constraints – essentially, how many rooms could be sold on a given day if your hotel had unlimited inventory.

#### What is an unconstrained plan?

The unconstrained forecast is an input into the sales plan, a time phased projection of sales volumes, revenue and profit underpinned by supporting sales and marketing activities. The Supply Side of the organisation is represented by the manufacturing, logistics and procurement functions.

What is the difference between demand and forecast?

A forecast is a prediction of demand based on numbers seen in the past. Demand plan starts with the forecast but then takes other things into consideration like distribution, where to hold inventory, etc.

What is the difference between unconstrained and constrained optimization?

Unconstrained simply means that the choice variable can take on any value—there are no restrictions. Constrained means that the choice variable can only take on certain values within a larger range.

## How can a company predict future demand as accurately as possible?

Through demand forecasting, businesses can optimize inventory by predicting future sales from analyzing historical sales data to make informed business decisions about everything from inventory planning and warehousing needs to running flash sales and meeting customer expectations.

### What are the disadvantages of forecasting?

Three disadvantages of forecasting

• Forecasts are never 100% accurate. Let’s face it: it’s hard to predict the future.
• It can be time-consuming and resource-intensive. Forecasting involves a lot of data gathering, data organizing, and coordination.
• It can also be costly.

#### How do you solve constrained optimization problems?

Solution methods

1. Substitution method.
2. Lagrange multiplier.
3. Linear programming.
4. Nonlinear programming.
6. KKT conditions.
7. Branch and bound.
8. First-choice bounding functions.

What is the constrained optimization problem facing firms?

Managers of business firms also face legal and environmental constraints. In all these cases when individuals face constraints in their decision making to maximise or minimise their objective functions we have a problem of constrained optimisation.

When is an unconstrained demand plan entered into a forecast?

The ‘complete’ unconstrained demand plan is entered into their forecasting tool, if this is then constrained by Supply or Engineering the ‘constrained’ elements of the demand plan are marked as ‘inactive’.

## Which is an example of a constrained forecast?

The constrained forecast is a forecast constrained by the operations side of the business such as capacity, materials, cash-flow, etc. A simple example of an unconstrained forecast is: “We only have capacity for 500,000 light bulbs per month.

### How is the unconstrained forecast used in the s & op cycle?

In the S&OP cycle, the demand side of the organisation owns and drives the Demand Review. The unconstrained forecast is an input into the sales plan, a time phased projection of sales volumes, revenue and profit underpinned by supporting sales and marketing activities.

#### What does the unconstrained forecast mean in IBP?

For those who haven’t come across the term before, the unconstrained forecast is one of the inputs into the sales and operations planning (S&OP) or integrated business planning (IBP) process.