Free centralized management software for linux

Essential Management provides a project management system for organizing and writing technical documents.

Essential Management is a multi-user project management system for managing intricate and complex information. Its initial purpose was to allow software development teams to create, maintain, track, and store project requirements on a multi-project basis in a multi-user environment. It has now become more abstract in the type of data it can maintain, allowing the easy addition of new data models and other expansions. Information can be stored in any of several database management systems, and can take advantage of a networked DBMS.

The first and most important feature of the application is that data is stored in a central data repository managed by some database management server; initially PostgreSQL fills this role, but support for others are growing. The repository is fully searchable. An alternative data storage format exists in the form of a locally maintained XML file if the user wishes to use it.

One of the key features Essential Management was designed around is the ability to define and maintain relationships between requirements. Using the software requirement model as an example, our application allows users to define projects; each project is composed of zero or more root requirements, which are typically business level requirements. Each business requirement has zero or more sub-requirements, which either refine the parent business requirement or dive into the functional requirements which allow the business requirement to be achieved. This tree continues to branch and grow deeper until the most basic level that the user wishes to define is reached.

In addition the relationship between parent and child requirements, relationships can be defined between requirements not in the same branch. These relationships may have any meaning the user wishes to define and can be unidirectional or bi-directional.

Essential Management implements the concept of user level permissions, which provides a small measure of security for the projects and their requirements. Additionally, creation of and changes to requirements can be traced to the user who initiated the action.

Finally, the application provides a means to track changes made to requirements during their lifetime so it is possible to determine when a change was made, what information was changed and who edited the requirement.

PHP time management project is a Web-based time management application. You can enter scheduled items, copy items, and view them on a calendar.

A few minor items in the login page for the system were fixed.

Community Content Management project consists of a light-weight CMS, designed for communities.
Community Content Management is a light-weight CMS, which is designed for small communities, such as churches, schools, and neighborhood watch groups.
It allows someone with relatively little knowledge of the Internet to publish news stories and events. It sets archive/publishing dates, allowing groups to write press releases/articles about events before they happen.
Its output conforms to XHTML 1.0 and uses CSS 2, and its configuration comprises one file, which sets the site title, database, host, and meta tags.
Enhancements:
- Login - code changed so correct variables are passed to login script :)
- Search - Search Engine Added
- Articles - new lines (n) are replaced with "
" instead of " "

Inventory Management Software is a Web-based tool that makes it easy to keep your inventory accurate from any location.
Inventory Management Software supports multiple users and inventory transaction logging.
Enhancements:
- Some minor problems found in the library files for the inventory system were fixed.

Nelisys project is Open Source Web-based Management System, to manage and monitor system and network including Router, Switch, Wi-Fi Access Point, Server, Networking services, etc.

There are performance and fault management function.

Service Management is a Web application that allows users to manage service and repair, including work orders, service scheduling, service calls, preventative maintenance, and customer contact information.
Enhancements:
- Some bugfixes were made for PHP5.
- A new interface was implemented.