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'''Custom [[production]]''' ([[Make to order]] [[production]] - MTO) is one of the forms of cooperation between the [[producer]] and the [[client]]. It consists in creating the [[client]] the possibility of influencing the final [[product]] through the ability to choose different [[product]] components and any configuration. At the present time, when we are dealing with a very demanding [[customer]] [[market]], this type of cooperation is becoming more and more common. It allows you to customize the [[product]] in such a way that it meets the [[client]]'s expectations. In the case of custom production, the final product is created only when ordered by the [[customer]]. Such an order is preceded by a phase of negotiations during which the terms of the order are specified.

Custom production shows how many customers are looking for personalized and unique products. However, this results in the necessity of changes in enterprises - transformations of [[mass production]] into a warehouse, in variable production to the [[customer]]'s direct order. This type of production is carried out in systems that are characterized by a great versatility of equipment.

==Characteristics of custom production==
Custom production can be defined as the production of a small amount of products from a huge range of goods to choose from. This [[process]] is started after the individual ordering of the buyer. In this type of production production stands are characterized primarily by the instability of [[work]], because the production of products occurs individually or in a certain repetition. Nevertheless, this repeatability is irregular, which makes it impossible to effectively anticipate new production.

Characteristics of custom production:
* diversified production range
* use of universal production machines suited to various types of tasks
* employing highly qualified employees
* using non-complex devices of universal character
* no fixed working time
* a wide range of [[work]] for individual employees
* diverse clients
* constant search for suppliers
* low stock levels
* high customer [[knowledge]] about the product
* implementation of new, innovative solutions

Custom production makes the [[company]] more likely to make production changes and changes, which results in a low level of stability of the [[production process]], and also generates high costs. An uneven production range also causes difficulties in [[planning]] and scheduling tasks.

==Types of custom production==
* Engineering to Order - ETO is associated with more customer influence on the final product. The customer participates already in the design phase of the product and its detailed construction. Most often this is done through the customer's [[internet]] collaboration with the [[producer]].
* Assemble to Order - ATO) assumes maintaining stocks of parts, elements and even entire segments to assemble the [[finished product]] ordered by the customer faster. Such a production [[organization]] not only saves time, but also eliminates the [[need]] to buy fragments of the product every time.
* Finish to Order - FTO is synonymous with custom assembly. It is also characterized by the production and maintenance of universal parts and components, in order to produce the product more quickly in accordance with the client's wishes. However, the difference between these concepts lies in the fact that the FTO does not have to exist only in the area of production activity. Finishing the final product may already appear in the distribution phase.

==Advantages and disadvantages of custom production==
Advantages:
* Better satisfaction of customers' requirements
* Possibility to produce as many products as customers on the [[market]] - suction effect
* In the long term, the consumption of natural resources such as iron ore, energy etc. decreases through their better use, which contributes to [[environmental]] protection

Disadvantages:
* Difficult [[production planning]] than in the case of production for storage
* The necessity of a certain flexibility of devices to be able to execute orders
* The [[need]] for a separate calculation of costs for each product.

==Custom production planning==
The basis for creating production plans are specific customer orders. Custom [[production planning]] usually takes place in three stages:
* Initial offer - in which the offer inquiry from the customer takes place, the initial [[cost]] calculation is performed and the approximate date of order completion is determined, if the client accepts the initial conditions, the second stage is activated
* Offer appropriate - including during the stage, a detailed calculation of the product's costs in accordance with the client's expectations is carried out, the [[quality]] of workmanship and payment conditions are specified. If the customer accepts the arrangements, the final stage takes place.
* Product production - at this stage, the product is manufactured in accordance with the customer's pre-defined instructions

==Examples of Custom production==
* '''Custom-made furniture''': An individual customer can order a piece of custom-made furniture that meets their exact [[needs]] and preferences. The customer can select the material, finish, size and style of the furniture, and the manufacturer will create the piece in accordance with the customer's specifications.
* '''Custom-made clothing''': A customer can order custom-made clothing from a tailor or a designer. The customer can specify the fabric, fit, style, and other details of their clothing, and the tailor or designer will create a unique piece for them. 
* '''Custom-made electronics''': Customers can order custom-made electronics such as computers or smartphones. The customer can specify the type of components, the operating [[system]], the amount of RAM and storage, and other details. The manufacturer will then build the device according to the customer's specifications. 
* '''Custom-made jewelry''': Jewelers can create custom-made jewelry pieces for individual customers. The customer can specify the type of metal, the style, the size and shape of the piece, and the jeweler will create the piece according to the customer's specifications.

==Other approaches related to Custom production==
In addition to Make to Order production, there are several other approaches related to Custom production:
* Design to Order production - DTO approach involves the development of a product based on [[customer requirements]]. The customer defines the product characteristics and then the manufacturer produces it according to the customer's specifications.
* Assemble to Order production - ATO involves the customization of a product by adding components or features that the customer desires. This approach allows the manufacturer to produce a customized product with minimal effort.
* Configure to Order production - CTO approach involves creating a product based on customer-determined parameters. The customer provides input on the product's configuration, and the manufacturer produces it accordingly.

In summary, Custom production is a form of collaboration between the manufacturer and customer in which the customer can influence the product's design, configuration and components. Different approaches to Custom production allow the manufacturer to tailor the product to the customer's needs while minimizing their effort.

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==References==
* Altendorfer, K., & Jodlbauer, H. (2011). ''[https://hal.archives-ouvertes.fr/hal-00592301/document An analytical model for service level and tardiness in a single machine MTO production system]''. International Journal of Production Research, 49(7), 1827-1850.
* Germs, R., & Riezebos, J. (2010). ''[https://hal.archives-ouvertes.fr/hal-00565392/document Workload balancing capability of pull systems in MTO production]''. International Journal of Production Research, 48(8), 2345-2360.
* Lyovina, A. I., & Dubgorn, A. S. (2014). ''[http://inase.org/library/2014/russia/bypaper/MEAS/MEAS-63.pdf Approach to information requirements identification of procurement process of custom production. In Recent Advances in Mathematical Methods in Applied Sciences]''. Proceedings of the 2014 International Conference on Mathematical Models and Methods in Applied Sciences (MMAS'14). Saint Petersburg (pp. 401-411).

[[pl:Produkcja na zamówienie]]
[[Category:Production management]]