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Sebastian Kruk

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Top Stories by Sebastian Kruk

Two weeks ago I wrote about how the world's largest exporter of dairy products uses SAP to support their huge delivery chain of dairy products. We recounted how Fonterra used an Application Performance Monitoring (APM) tool to discover that additional training for employees was necessary to speed up certain critical SAP transactions: some employees weren't optimizing attributes passed to the reports based on custom T-Codes. Unfortunately, additional SAP training cannot solve all the problems. Separately and unrelated to the training issues, Fonterra started to notice that end-to-end SAP transactions were much slower than usual; especially during the summer months. Correlating long-term network performance data, such as loss rate or RTT measures, with end-to-end SAP transaction response times revealed the actual network problem caused by something nobody thought ab... (more)

What It Takes to Deliver User Experience Management

User experience can boost or kill your revenue. Unhappy users are likely to abandon a service they struggle with and go to your competitors. To effectively manage the experience of your users, you need to efficiently monitor and understand their transactions in your mobile, web and enterprise applications. More important and often overlooked, the practice of User Experience Management (UEM) does not end in the client application. Common user experience tools fail to ensure holistic UEM the same way many think performance management is only based on analyzing server logs. Neither ... (more)

Application Performance Problems? When to Blame the Untrained End User

In my previous posts I wrote about how important it is to have end-to-end visibility into SAP in order to avoid serious problems in our delivery chain or to discover that application performance degradation was caused by malfunctioning hardware. One of our New Zealand customers, Fonterra, who is the world's largest exporter of dairy products, uses SAP to support its delivery chain of dairy products made from 22 billion liters of milk collected each year. In this article we show how Fonterra uses a new generation of APM tools that provide both user and transactional insight, as we... (more)

Filling the Citrix Visibility Gap with an Application-Aware Network

Citrix XenApp or XenDesktop is a perfect fit for lowering the costs of desktop management and simplifying access to the hosted applications from any device. Last week we discussed some challenges to application performance monitoring (APM) introduced by Citrix. Apart from getting yet another component in the data center to take care of, the virtualized application delivery becomes "black boxed" from the APM perspective. It gets harder to isolate the fault domain to the network, the infrastructure, or the applications themselves. In the previous post we presented the case of The ... (more)

Let's Not Play Blame Games

When the operations team gets an alert about potential performance problems that users might be experiencing, it is usually either the infrastructure or the actual application that is causing those problems. Things get interesting when neither the ISP nor the application provider is willing to admit fault. Can we tell who is to blame? Could it be that it is neither the ISP nor the application provider? The IT department of our customer, SerciaFood, a food production company from Sercia (names changed for commercial reasons), received complaints about the performance of one of it... (more)