# A Petri Net Approach for Business Process Modeling and Simulation
## 6 Business Processes of a Water Operating Agency
* **Hiring agreement** Formal agreement between the WOA and the user that establishes the terms and conditions under which the water supply is provided. This type of agreement is used when a user wishes to obtain regular and continuous access to drinking water services and wishes to pay the contract amount in installments. * **Debt adjustments** Agreement between the WOA and the user to correct or modify the previous measurement of water consumption registered in a previous receipt. This is required when discrepancies in billing for water consumption are detected and adjustments need to be made to accurately reflect actual consumption. The specific reason why the water consumption adjustment is being carried out is recorded. This could be due to an incorrect meter reading, a previous billing error, or any other factor resulting in inaccurate billing. * **Feasibility studies** Analytical and evaluative process with the objective is to determine the technical, economic, social, and environmental feasibility of providing a drinking water supply service to a certain area or community. These studies are normally requested by subdivision builders or by companies that use water as a raw material, and are crucial before undertaking any project related to water supply, as they help to ensure that informed decisions are made and that resources are used efficiently and sustainably. * **Water extraction and storage** The process of capturing water from natural sources (underground wells or springs) to treat it and make it suitable for human consumption, along with later storage in suitable facilities for distribution to the population. This process ensures access to clean and safe water for domestic, commercial, and industrial use. * **Maintenance of pipelines** The set of regular activities that ensure the pipes and systems that transport drinking water from the supply sources to the distribution points are in optimal operating condition and meet the required quality and safety standards. This includes repairs and replacement carried out on damaged or worn pipe sections. * **Attention to emergencies (i.e., flooding)** The set of actions and protocols designed to guarantee the continuity and quality of the drinking water supply service during crisis situations, natural disasters, or unforeseen events that may affect the normal operation of the WOA and the availability of water for the population. This emergency care is essential to ensure that communities have access to safe drinking water at all times, even in adverse circumstances. * **Control of measuring devices** This refers to the procedures used to efficiently manage and supervise the water meters installed on users' properties to ensure accurate and reliable measurement of water consumption. This implies the proper installation of meters and adequate supervision to prevent leaks as well as fraud or manipulation by users. * **Control of nonconformities** The process of effectively manage complaints, claims, and problems reported by users in relation to the supply of drinking water and associated services. The main objective of complaint control is to address customer concerns in a timely manner, resolve problems satisfactorily, and continuously improve the quality of service. Eachcomplaint is recorded in detail in a computer system and assigned a unique tracking number to facilitate follow-up and resolution. * **Street repair*
* The process of repair and maintenance of paved surfaces, such as streets, highways, and sidewalks which have developed potholes due to WOA activities such as the installation of water intakes or maintenance of conduction lines. The objective of patching is to restore the paved surface to a safe and functional state.