The sewerage system is a primary element of a city and is responsible for the congestion of both rain and gray water from homes and industries. It is essential to have a monitoring system and a plan to perform prior expansion in the sewerage management system, to avoid massive disruption. However, there is no monitoring system in several overpopulated cities in the world, and the expansion process faces myriad difficulties and takes much time. This paper presents a model for an intelligent sewerage management system that provides real-time monitoring without any major changes to the previous system, using water sensors, a Global System for Mobile Communications (GSM) module, and a micro-controller. The condition of the sewerage acts as an input through the sensors; then, the microcontroller stores the value in the cloud and performs waste collection depending on the current situation. Meanwhile, after processing, the information reaches the monitoring system. Various trial installations of the proposed system have shown that it enables real-time monitoring to observe live conditions and helps to prevent sewerage blockage caused by solid waste. Considering a deficient cost model, this system can intensify the performance of poorly managed sewerage systems.

Islam is the second-largest religion in the world based on the population, and Muslims are the people who believe in Islam. On the other hand, Hajj is one of the main fundamental duties of Muslims. Every year the Muslims who have the ability to offer Hajj gather in Saudi Arabia for the purpose of performing Hajj. As a result, managing a large number of people’s activities is quite complex and difficult. Therefore, modern technology has a good scope to utilize Hajj management to make it easier. Under these circumstances, different mobile applications have been introduced to solve the problems in this scenario. However, all existing projects that are available in the mobile application marketplace still have some limitations. This paper presents an innovative mobile application that solves a wide range of difficulties and guides pilgrims during the holy Hajj, named the eHajj Guide. eHajj Guide is compared with other popular seventeen (17) applications with fourteen (14) several features. It is shown that the proposed application would facilitate more flexible ways of reducing people's suffering than other applications. JEL Classification Codes: D83, D71, N70, Y91, Z12.