Free e commerce system software for linux

Gecko Multimedia System is a complete media solution, able to play almost all media types and supports scheduled tv-recording from online tv-guides.

It is intended to replace your VCR, DVD, MP3- and CD-player into one single software-unit. It is mainly for use in Linux-systems (well, its the only system Ive tried it on).

Please note that Gecko requires VRD to be able to record television. VRD is not yet 100% functional.

KiweeCommerce software is a full-featured but easy to use e-Commerce solution for the MODx content management system.
Main features:
- Modular payment gateway architecture, which currently supports Paypal, Google Checkout, and Authorize.Net.
- Product management tools that auto-create product page stubs
- Integrates tightly with MODx - provides configuration menus in the CMS Manager, shares MODxs database, etc.
- Very powerful item option management
- Support for integration with external applications, such as accounting systems
- AJAX-driven configuration interface makes administration fast and intuitive

E-Cell System is a concept of constructing virtual cells on computers.
E-Cell System is an object-oriented software suite for modeling, simulation, and analysis of large scale complex systems such as biological cells, architected by Kouichi Takahashi and written by a wonderful team of developers. Core part of the system, E-Cell Simulation Environment version 3, allows many components driven by multiple algorithms with different timescales to coexist.
E-Cell Project is an international research project aiming at developing necessary theoretical supports, technologies and software platforms to allow precise whole cell simulation.
E-Cell System consists of the following three major parts:
- E-Cell Simulation Environment (or E-Cell SE)
- E-Cell Modeling Environment (or E-Cell ME)
- E-Cell Analysis Toolkit
Main features:
Basic capabilities
- Object-oriented modeling and simulation of complex systems.
- Plug-in architecture. New user-object classes can be developed, dynamically loaded, and used in simulation.
- Real-time user interaction and visualization during the simulation.
Scripting
- Python scripting of a simulation session (run/stop/parameter manipulation/data processing etc...).
- Python scripting of a simulation experiment that involves many runs of the simulation sessions (such as parameter tuning, metabolic control analysis etc..)
- Python scripting of model file generation (e.g. for automated model construction from databases).
Compatibilities
- SBML level 1/2 importing.
- SBML level 1/2 exporting.
Parallel computation
- Shared-memory, multi-thread parallelization of a single simulation session. (to be merged into the main branch.)
- Cluster and grid distributed computation of multiple simulation sessions. Sun Grid Engine, (Globus toolkit).
Enhancements:
- This release includes improved ODE/DAE solvers, support for numpy, an updated empy preprocessor, and some more minor improvements.

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.

My Media System is a media system with you in control. It lets other applications such as MPlayer, VDR, or Xine take care of what they respectively do best, and integrates them into one system, that is easy to understand and operate.

By combining their individual strength, you get the best of all worlds, in one media application.

MMS is easy to install, configure and use. Its even translated to 9 languages so there a good chance its available in your native tongue.

YaaCs is a CATI system that lets you manage and do interviews. YaaC system divides the survey process into administration and strictly operative tasks.
It make easy monitoring survey progress (giving several information), and it allows the management of the the survey with several administration tools.
It simplifies the interviewers work reading all contacts data from an easy and functional GUI. It can send faxes via hylaFAX and save all contacts data in a PostgreSQL database.
Enhancements:
- This release features a rewrite from scratch, VoIP support (IAX2 protocol), automatic outcomes classifcation, a new database design, support for internationalization (with English and Italian translations), new monitoring tools (via the tclami package), instant messaging (IM), the ability to recruit interviewers through SMS, phone, or email, an improved replicates algorithm, and an new installation system that uses autotools.

Eiffel Windowing System (EWS) is an Eiffel library which provides a small, stand-alone windowing system.
The current implementation is based on the Simple Directmedia Library (SDL), but the design allows other graphical backends.
Besides the basic windowing system functionality (overlapping windows, event passing and handling, graphical operations, input froum mouse and keyboard), a small widget-toolkit is included (buttons, scrollbars, labels, etc.).
Its specially well suited for applications where a fine degree of control over presentation and timing is required. Multimedia applications and games are the usual examples.
Main features:
- Transparency (alpha channel) support
- Can load most standard image formats via libSDL_image (PNG, JPEG, GIF, Windows bitmap...)
- Mostly coded in OO Eiffel. Only a small C module handling SDL interface. All the API is OO.
- Complete control over application appearance.
- Simple design, easily extendible for new event kinds, new widgets, etc.
- Quite fast even in old slow computers (if you compile at require_check level or lower).
- Licensed under the LGPL
Supported widgets:
- The UI toolkit coming with EWS includes
- Buttons: push buttons triggering commands
- Toggle buttons: controls that toggle its state (they may be used to implement checkboxes and radio buttons)
- Text entries: One line text entries, handling cursor keys. Selection not implemented yet (the core is selection capable, but the UI not).
- Labels: A simple text label
- Multiline labels: Labels spanning several lines with optional word-wrapping
- Marquees: Like a label, but scrolling a longer message sideways
- Images: A fixed image
- Animations: An animated area of the screen
- Drag handles: An area that can be dragged to move other window. Useful as titlebars.
- Scrollbars: The usual thing, with buttons at the end and a slider which can be dragged. (only vertical scrollbar implemented now)
- Adding widgets to the toolkit is very simple

Workorder Processing System allows you to quickly set up a work order/ticket tracking system for most service related businesses.
Workorder Processing System is capable of handling multiple branches, which allows all branches to run from one central server connected to the Internet.
Main features:
- Multi branch capable with central server
- Customer address database
- Customer work history
- Searchable ticket database
- Business appointment scheduler