# Welcome to the OLI Application Builder documentation OLI Application Builder is a web application hosted on the cloud. It lets users package flowsheets models developed in OLI's flagship process simulator, OLI Flowsheet: ESP and run them as easy to use applications via the web browser. The user is allowed to design the layout of the application by adding input and output controls using a WYSIWYG editor. The input controls can be tied directly to process parameters(inflow quantities, controller set points etc.) that can be user modifiable and the output controls mapped to relevant flowsheet output data (e.g. stream pH, species concentrations etc.). This application can then be published to be made available to run by the application users --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://appbuilderdocs.olisystems.com/master.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.