Perusion is expert in the Internet. Our consultants have worked with networked systems since before the inception of the World Wide Web.

You can order support online to get immediate help from us.

Perusion focuses on database-driven systems with SQL databases like MySQL, PostgreSQL, and Oracle and accesses data using Interchange, Perl, and Ajax style applications. We have specific expertise in e-commerce, having written software that powers thousands of sites. We also have expertise in creating and syncing with existing proprietary company systems... such as accounting systems, inventory systems, and crm.

We support the following subsystems completely:

Interchange

Perusion consultant and co-founder Mike Heins wrote Minivend, which became Interchange after acquisition by Akopia and then Red Hat. Mike authored much of the functionality of Interchange, and has produced a number of innovations in the area of database independence, ease of template use, and robustness of database access.

Apache

Perusion has wide experience with Apache and Perusion consultants have worked with members of the core Apache development team. We know mod_perl and have supported Apache on Linux, BSD, Solaris, and other UNIX systems.

MySQL

Perusion MySQL-implemented systems drive sites with millions of page views per month. We can support optimizations and interfaces to Interchange and other SQL systems, including client integration with Windows.

PostgreSQL

Postgres is becoming more and more popular as the basis of robust transaction-oriented systems. Perusion can support integration of Postgres with Interchange, SQL-Ledger, DBI, and mod_perl.

Linux

Linux has become the dominant UNIX type on Intel systems. It powers millions of web sites and hundreds of thousands of server systems. Perusion is expert in the selection, deployment, and support of Linux systems.

Perl

Perl is the leading script language for UNIX applications. Perusion consultants are expert in the support, development, and debugging of scripts and professional-quality applications based on Perl.

JavaScript

JavaScript is a lightweight, object-oriented language, most known as the scripting language for web pages, but also used in many non-browser environments as well. Perusion consultants are expert in the support, development, and debugging of scripts and professional-quality applications using Javascript.

Ajax

Ajax - shorthand for Asynchronous JavaScript and XML is a group of interrelated web development methods used on the client-side to create interactive web applications. With Ajax, web applications can retrieve data from the server asynchronously in the background without interfering with the display and behavior of the existing page. Perusion consultants use serveral combinations of Javascript and Interchanges native ITL as well as inpage perl capabilities to develop Ajax style applications. We lean towards the use of JQuery for JavaScript and Ajax development.

JQuery

jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. Perusion consultants use JQuery and Interchange ITL and inpage perl to create fast, lean web applications for accessing and returning data, and allowing customers to easily navigate web applications.

QuickBooks

Quickbooks is a popular business accounting program used by countless small - medium sized businesses across the country. As Quickbooks has evolved, it has become more accepted by larger companies as well. Perusion has developed various interfaces for Quickbooks and Interchange using Intuit's Webconnector and Interchange's versatile access to Perl and database applications. Each application is tailored specifically for the customer needs following Perusion's business model of only creating what you need and when you need it.