An Online Test Competition

When the staff at NRGGlobal asked me to start blogging for them, they asked what we had in common, and what they could do for the test community.

Yugo Testing

Recently, I was invited to observe a colleague’s monthly stress test exercise. There is a large room filled with mangers and technicians, experts in various aspects of the system, general network specialists, application specialists, customer support representatives and a collection of people with[…]

The Black Swan In The Enterprise

Amazon’s Service level agreement for it’s cloud computer service is 99.95% uptime for a service region (that’s a data center) during a one year period.

Deviant Deviation

A few years ago, I worked a performance project.  You probably know the type:  Customers were upset, executives were upset, technical staff were asking for specific direction (and not getting much) ... nobody was happy. The code was already in production, and there was no obvious 'roll it back to[…]

(Just Starting to) Analyze Performance Data

If you've done any performance testing, or even seen a demo, you are probably familiar with the “big line graph” that is created as the test runs. A Typical Response Time Graph The typical scenario is simple:  Have the load tool start with one simultaneous user running a script.  Then add a new[…]

Understanding the difference between total users and concurrent users.

Many of our clients have enterprise applications that are accessed 24 hours a day, seven days a week.  Their applications may be accessed remotely from all over the world.  In such cases, total users could number in the thousands.

Testing .NET application in Citrix

Expanding with .Net application through Citrix Portal

Oracle Apps Tutorial: How to Automate Oracle EBS Patch Testing

Steve Sutphin, an Oracle expert for over 20 years, had this to say about using AppLoader for regression testing.

Testing web applications across different browsers and operating systems.

You have a client server application used through the web and another used through a fat client. Every month you need to install required automatic updates on different Windows Operating Systems and some application patches. Your users use the application on different Operating Systems and use[…]

Testing the Upgrade from Eclipsys 5.0 to Eclipsys 5.5:

If you are starting or thinking of starting your Eclipsys 5.5 upgrade, you are probably wondering what approach to take when testing the upgrade and what issues others have uncovered during testing.

Finding JVM Compatibility with a Java Test

Testing Java application to uncover Java Virtual Memory - JVMs compatibility:

10 Steps to load test a business application

1. Test from the end user's perspective