Attic is an open source backup manager. It is secure encrypting, reduplicating backup program. By using this backup manager you can store only new or modified data on a remote server and new data is transferred every time you create a backup. It is easy to use, it comes with comprehensive quick start guide and the usage instructions. It supported cross platform like Linux, FreeBSD and Mac OS X.

Event management is the process of managing projects such as festivals, conferences, ceremonies, formal parties, concerts, or conventions. It also consist of arranging the required equipment, renting the event space, identifying the target audience, planning the logistics, devising the event concept and coordinating the technical aspects before the start of event.

Learning management system is an software application or web based technology used for tracking, reporting, administration, documentation and training programs. It also provide students facility to use interactive features such as threaded discussions, video conferencing, and discussion forums.Sakai is a free and open source educational software platform distributed under the Educational Community License.

Fedena is an open source school management software. This software is developed on Ruby on Rail framework and its main focus on handling records. It is a web based software solution developed by Fordation Technologies. It is a cloud based software used for school administration purpose. This programm is available in git hub. Fedena is the best solution for schools and campuses that want an easy means to manage all campus records.

Building (construction) Management System(BMS), we also called Building Automation System (BAS, it is a complete control system used in building to monitor and manage the mechanical, electrical and electromechanical services in a facility. It monitor the services of pumping stations, power, heating, elevators and lights, ventilation and air-conditioning,physical access control etc.Building Management System is a combination of software and hardware.

Network simulation is a virtual representation of a network, it is a technical method in which programs models the behavior of a network by calculating the interaction between the different network entities. There are two types of network simulation one is used before the construction of network and other one is used on existing network. It is also call network simulation a network emulator.