> For the complete documentation index, see [llms.txt](https://virtualfactory.gitbook.io/vlft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://virtualfactory.gitbook.io/vlft/tools/ontoguiweb/modules/performance-evaluation.md).

# Performance Evaluation

**Performance Evaluation** tool is an OntoGuiWeb module supporting the definition of production plans that are need to evaluate the performance of a production system.

A production plan is defined in terms of:

* **Duration**
* **Production Batches** to be produced. Batches are in turn defined by:
  * **Part Type**
  * **Quantity**
  * **Process Plan**
* **Production Systems** whose elements can be used to execute the production plan
* **Controllers** managing the execution of the production plan

In addition, a production plan can be associated with one or more performance histories describing the actual or simulated execution of the production plan. A **performance history** can be instantiated from a log of events (see "Import from TXT file") provided by a monitoring systems or generated by a performance evaluation method, e.g. discrete event simulation (DES). A Mixed-integer Linear Programming (**MILP**) version of a **DES** is available.  

![](https://2247033703-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Lh1dC9-F-cM6usakky7%2Fuploads%2FCK5ga0H3CzqUedsEH29N%2FScreenshot%202024-09-11%20184954.png?alt=media\&token=4ac1fe64-647e-4686-ac1e-e1ef68cb6b6e)