Object-oriented programming (OOP) is a computer programming model that organizes software design around data, or objects, rather than functions and logic. The organization of an object-oriented program also makes the method beneficial to collaborative development, where projects are divided into groups. Additional benefits of OOP include code reusability, scalability, and efficiency. This approach to programming is well-suited for programs that are large, complex, and actively updated or maintained. This includes programs for manufacturing and design, as well as mobile applications; for example, OOP can be used for manufacturing system simulation software.

When it comes to working in OOP, the first step revolves around data modeling in which the collection and evaluation of objects take place. The object after evaluation will be placed in a widget based on its physical properties. Once the object is identified, it will be labeled with a class that contains any logic sequences that can manipulate it. Each distinct logic sequence is known as a method. Moreover, Objects can communicate with well-defined interfaces called messages.

Although this programming has a lot of benefits, the model has been criticized by developers for multiple reasons. The largest concern is that OOP overemphasizes the data component of software development and does not focus enough on computation or algorithms. Additionally, OOP code may be more complicated to write and take longer to compile. If OOP is left to run out of control, it can create a massive amount of inflated, unnecessary code and when that occurs, the overhead rises and which makes it difficult to keep costs down. But fortunately, the languages such as Erlang and Scala, are used for telecommunications, and fault tolerant systems can be used under this programming.