Free architecture in helsinki software for linux

Af-Arch is being developed to give GNU/Linux a new middle-ware for building enterprise managing applications, typically database oriented.
Af-Arch is a complete set of libraries and tools which allows to develop distribuited system especially designed to face problems about bussiness applications.
Actually, Af-Arch is really robust and stable, having systems installed on many environments. Af-Arch, at this moment, runs on GNU/Linux and Microsoft Windows.
AF Architectures license schema is based on GPL and LGPL, allowing you to develop not only open source applications but also comercial applications without any royalty or fee.
Af-Arch is a strongly documented project, which is proved to work. Af-Arch keeps on evolving and growing its feature list allways keeping in mind productivity.
Enhancements:
- A new major stable release have come with many interesting features, library dependencies news, new API to make life easy and a bunch of work to make the library to be memory efficient.
- Af-Arch no longer depends on GDA library (http://www.gnome-db.org). Now AfGs, server side support for Af-Arch, includes built-in database abstraction support, implemented to fit better with the Af-Arch framework. For more details check the "libafgs" log below.
- Af-Arch platform now support three new return types: AfDalNodeData, AfDalStringData and AfDalDecimalData, which allows services to return a module node, a plain string and a decimal value as a result for the invocation.
- Af-Arch now support a new formal parameter service AfDalSetOf which implements set of items to be sent while the service is invoked.
- af-gen tool now support defining string literals that are separated by "+" sign, making it easy to write long SQL sentences.
- af-gen tool now allow to generate type definitions that could extend, making it possible to create a class hierarchy for types to be returned by services.
- libafdal core library now implements a better error reporting mechanism which allows to receive all errors generated while performing invocation at the reply process code.
- New reserved services have been added: element_peek_reference which allows to get the node associated to a module which is relationed through the 0..1 link.

Open Computer Forensics Architecture (OCFA) is a modular computer forensics framework built by the Dutch National Police Agency. The main goal is to automate the digital forensic process to speed up the investigation and give tactical investigators direct access to the seized data through an easy to use search and browse interface.
The architecture forms an environment where existing forensic tools and libraries can be easily plugged into the architecture and can thus be made part of the recursive extraction of data and metadata from digital evidence.
The Open Computer Forensics Architecture aims to be highly modular, robust, fault tolerant, recursive and scalable in order to be usable in large investigations that spawn numerous terabytes of evidence data and covers hundreds of evidence items.
Enhancements:
- This release fixes a memory leak in the evidence library and adds a workaround to limit the impact of a memory-hungry indexer module.

Growler is a C++-based distributed object and event architecture. The software is written in C++, and supports serialization of C++ objects as part of its Remote Method Invocation, Event Channels, and in its Interface Definition Language.

Its primary application has been in support of interactive, distributed and collaborative visualization, computational steering, and concurrent visualization.

Adaptive Quality of Service Architecture (AQuoSA) is an open architecture for the provisioning of adaptive Quality of Service functionality into the Linux kernel. The project features a flexible, portable, lightweight and open architecture for supporting soft real-time applications with facilities related to timing guarantees and QoS, on the top of a general-purpose operating system as Linux.
At the core of the architecture there is an adaptive resource reservation layer that is capable of dynamically adapting the CPU allocation for QoS aware applications based on their run-time requirements.
Timing guarantees are provided through an in-kernel reservation based process scheduler, whose services are exposed to applications through a well-designed API.
A supervisor performs admission control, so that admitting into the system new applications with timing guarantees does not affect the timing guarantees of already admitted applications. Also, it takes care of guaranteeing appropriate security policies in the assignment of timing guarantees to users and user groups, as configured by the system administrator.
A feedback-based QoS control layer may be optionally used by applications who want to keep their timing guarantees by using a CPU allocation that is continuously adapted according to their actual needs. This leaverages the programmer, within certain limits, to hard-code any particular reservation amount within the application, because the best allocation is found out automatically at run-time. Also, this enhances the possibilities for the system to host additional QoS controlled applications. The available control algorithms are well founded on formal scheduling models and control theoretical results.
Enhancements:
- This release introduces a couple of flags useful when creating servers. If QOS_F_PERSISTENT is enabled, a server is allowed to exist beyond detach of the last task. If QOS_F_SOFT is enabled, a server tasks are scheduled by the Linux default scheduler/policy, when outside of the server reservation.
- Also, various stability issues in destroying servers have been fixed, also thanks to a new release of the generic scheduler patch for the Linux kernel (gs-2.2).

IRC Collective software contains a parser, with a modular architecture that makes it flexible in the way it can process input and handle output. The output of the parser is primarily used to add to an SQL database that can in turn be queried by, e.g., a Web application (also provided).

The parser can be extended by defining new input formats and output handlers. It can help you stay up to date on the IRC channels that you visit regularly. You can write your own applications on top of the SQL database. You can search past conversations using the Web interface (results will be paged).

Host Identity Protocol on Linux is an implemetation of the Host Identity Protocol (HIP) and the related architecture. Host Identity Protocol (HIP) is a proposal to change the TCP/IP stack to securely support mobility and multi-homing.
Additionally, it provides for enhanced security and privacy and advanced network concepts, such as moving networks and mobile ad hoc networks. HIP is "cool", which means that as a mobile VPN solution, when your network interfaces go up or down, there is no need to re-establish a secure tunnel.
Enhancements:
- The implementation was moved from kernel to user space.
- Support for the Nokia 770 Linux PDA (ARM) was added.

URBI: Universal Robotic Body Interface. URBI is a scripted command language used to control robots (AIBO, pioneer,...). It is a robot-independant API.
URBI Project is based on a client/server architecture and it is designed to be used over a TCP/IP or IPC connection.
Main features:
- URBI is a low level command language. Motors and sensors are directly read and set. Although complex high level commands and functions can be written with URBI, the raw kernel of the system is low level by essence.
- URBI includes powerful time oriented control mechanisms to chain commands, serialize them or build complex motor trajectories.
- URBI is designed to be independant from both the robot and the client system. It relies on TCP/IP or Inter-Process Communication if the client and the server are both running onboard.
- URBI is designed with a constant care for simplicity. There is no "philosophy" or "complex architecture" to be familiar with. It is understandable in a few minutes and can be used immediately.

PatientOS is a free clinical information management system designed for hospitals and healthcare practitioners.

PatientOS project is for physicians, nursing, pharmacy, the laboratory and eventually all hospital departments. An extensive sofware architecture has been designed to create the highest quality system.