Software Development Company

  • PolygonLib

    A library for efficient storing great amount (>10 million) of 2D polygons in RAM and quick operations on them. The product is especially optimized for operations on large polygon sets.
    C++, STL, COM, ATL, MFC
  • GIS Framework

    A framework for developing custom GIS components (extensions) that can be used in both desktop and Web applications.
    .NET Framework 2.0/3.5/4.0, COM,
    C#, HTML, Java Script,
    ArcGIS 9.x/10
  • GeoFES-Web

    Migration of GeoFES to the Web while retaining the existing GUI and the ability to run on the desktop (ArcMap).
    .NET Framework 3.5/4.0, C#, COM,
    ArcGIS 9.x/10 (ArcObjects, ArcGIS Server, ArcGIS API for WPF, ArcGIS Desktop)
  • WISYS-Web

    Migration of WISYS explorers to the Web while retaining the existing GUI and the ability to run on the desktop (ArcMap).
    .NET Framework 2.0, C#, COM,
    HTML, Java Script,
    ArcGIS 9.x (ArcObjects, ArcGIS Server Web ADF for .NET)
  • WISYS Explorers

    Powerful tools for displaying and analyzing the WISYS (Water Information System) data in ArcMap.
    .NET Framework 2.0, C#, COM,
    ArcGIS 8.x/9.x/10 (ArcObjects, ArcSDE, ArcGIS Desktop)
  • FDAT

    An ArcMap extension for assessment of flood damage.
    .NET Framework 2.0, C#, COM,
    ArcGIS 9.3 (ArcObjects, ArcGIS Desktop)
  • LVS

    A land management system with an integrated GIS.
    Java (Java Beans, JAI, Swing), dbSwing, Oracle
  • JScribe Software
    Development Kit

    An integrated development environment for JScribe solutions.
    C++, MFC, Win32 API, JavaScript,
    Xtreme Toolkit Pro for Visual C++ MFC
  • eFF

    Complex system providing financing calculation for all DaimlerChrysler products in Germany and other European countries.
    Java (EJB, JSP, Servlet, JDBC),
    JavaScript, XML, XSLT,
    Oracle, WebSphere
  • V&B Online Planer

    V&B Online Planer is an application for creating bathroom interiors based on recent 3D technologies.
    Adobe Flash, DHTML, HTML, CSS, VRML

    "Since 1999 we successfully cooperate with your company on the development of GIS software and would like hereby to highlight high level of expertise, creativity and diligence of your team. ..."
  • Deutsche Bank AG
    "We cooperate with your company since 1998. During this time we were able to convince us of the high quality of your software products, which is above all due to the good expertise of your employees. ..."
  • Use our PolygonLib for quick operations on 2D polygons and large polygon sets in your software (CAD, GIS, modeling systems, graphics editors, etc.).
  • We offer a wide range of professional and cost-efficient outsourcing of software development.
  • Leverage our innovative experience and know-how in developing custom GIS components that can be used in both desktop and Web applications.
VeCare Rule Engine (for IT Systems & Consulting GmbH & Co KG)

A rule engine is a software component designed to evaluate and execute business rules. A rule is a logical construct that determines certain actions to be conducted in case that defined conditions are kept. Basically, the business processes handled inside VeCare that need to make use of rules are related to products configuration, price calculation, selling products to customers, assembly and delivery of product instances, presentation and analysis of invoice and account data etc.
Usually software systems utilize rules either implicitly (i.e. they are not described anywhere in the software) or in a directly hard-coded manner. Both approaches work well in some situations, but have their limitations. There is an additional approach: rules are specified explicitly in the software, and certain facilities within it can be used to configure and execute them. Within VeCare Rule Engine, all these approaches are used.

Since the rule engine implements all of the logic necessary to perform rule evaluation and execution, the rules are coded as stand-alone atomic units separate from and independent of the rest of application logic. That makes them easier to develop and maintain. Rule engines have a proprietary rule language for writing rules. To implement an application using a rule engine you write the rules in the rule language and embed the rule engine into your application. The rule engine is integrated with the application through an API that controls providing of the rules into the rule engine, activating of rules (only activated rules are eligible to fire), monitoring of application objects referenced by rules, execution of rules etc. The rules are loaded into the rule engine by invoking a method of the rule engine object and passing the rules in XML representation. To evaluate the rules, the rule engine has visibility to the application objects referenced by rules. To provide this type of visibility, the object data members and methods referenced by the rules are specified as public. Through the process of asserting the rule engine obtains references to the objects referred by the rules. Once the objects have been asserted to the rule engine, the rule engine maintains a set of references to these objects. The rule engine's fire rules method is then invoked to cause the rule engine to evaluate all the activated rules. Following evaluation, when the conditions of rules are met, the rules are executed or fired, causing their action statements to execute. An alternate approach (Self-organizing Boolean Network) was used to optimize rules evaluation instead of well-known RETE algorithm.

Development platform
Programming languages: Java, XML
Platforms: cross-platform solution

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