Quintessential Computing Services Inc. supplies a wide range of technical expertise on various software platforms and application domains. With knowledge and experience on both Microsoft Windows® and open source based technologies, QCSI has capability on most major business platforms. This section of our web site summarizes our technical capabilities that have been used to supply real business solutions.


Programming Environments
Microsoft .NET Framework® Microsoft's .NET Framework provides the future platform on which software is developed within Microsoft environments. In keeping with this evolution, QCSI provides design and programming services utilizing these powerful technologies.
Microsoft Specific Microsoft's Visual Studio 6 family of products are the foundation upon which many existing software products are written. QCSI has many years of experience using these development tools and their associated programming languages. In addition, QCSI has integrated heterogeneous programming environments (E.g. ActiveState Perl, C++, VB6) together using Microsoft programming environments using Microsoft's Component Object Model (COM) and Active Directory technologies.
Industry Fundamentals QCSI is extremely skilled at designing, implementing and troubleshooting applications written using industry fundamental languages such as C++.
Database Systems
Platforms With experience on almost all major Relational Database Management Systems (RDBMS), QCSI can work in any data environment - the backbone of any enterprise-level system. QCSI is especially proficient in the design and implementation of systems using the enterprise class data stores provided by Microsoft SQL Server 2000/2005 and the real time in-memory database, Polyhedra. QCSI is a premier partner of Polyhedra, which indicates a recognized level of expertise and experience.
Connectivity Middleware Middleware is sometimes referred to as the glue between two pieces of software; the server and the client. QCSI has used a variety of connectivity middleware during the execution of many data-related software projects.
Programming QCSI is both fluent and experienced in structured query language (SQL); especially the dominant flavor of SQL - Transact-SQL® (used by both Microsoft SQL Server® and Sybase®). Polyhedra's flavor of SQL and its unique CL (Control Language) specification round out QCSI's wide range of database programming abilities.
Miscellaneous QCSI is adept at applying the above technical skills in the area of relational database design. A well-designed database both scales and performs well under a variety of circumstances.
Internet Technologies
Markup Specifications Experience with the plethora of markup languages available for use within the Internet domain of the World Wide Web is a must for any serious software development shop. QCSI has applied these technologies in applications ranging from simple web sites to complex embedded application usages.
Client Scripting Accompanying the markup languages above, are various client-side scripting specifications. QCSI has used the two major flavors of client web scripting on various software projects.
Server Programming Construction of professional-grade web sites or services requires the use of a web server technology. QCSI has applied many of the major server-side technologies on various software projects.
Tools Professional application of internet-related technologies implies the use of professional tools to get the job done. QCSI has applied these web development tools on a variety of software projects.
Operating Systems
Microsoft Windows® QCSI has extensive experience with most major flavors of the Microsoft Windows operating systems, XP/2000/NT (both server and workstation configurations) and ME/98/95.
UNIX QCSI has years of experience with all major flavors of the UNIX operating system, operating primarily in a real time environment.
QNX® QCSI has exposure to the QNX Real time operating system.

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