Collected thoughts about software and site performance ...

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Home | Entries about Metrics (4), in reverse date order:

Generalizing The Apdex Standard [2]

Illustration: Apdex Logo

Today the Apdex specification is entirely focused on application response time. Its first paragraph defines Apdex as “a method for calculating and reporting a metric of transactional application response time in the form of an index with a value of 0 to 1.” But in reality, the Apdex method has much wider applicability. A more appropriate description might be the general statement that Apdex is a metric that reflects the degree to which a set of performance measurements achieves designated targets.

The idea of generalizing the Apdex standard has been discussed periodically within the Apdex community. To turn those discussions from an abstract idea into a concrete proposal, I’m writing a series of posts on the Apdex Exchange blog ...

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Apdex as a (Key) Performance Indicator

Illustration: Apdex Logo

On the Apdex Exchange blog, I’m writing a series of posts about Generalizing The Apdex Standard. The ideas I developed (together with any public input) will evolve into a new draft of the Apdex specification. The latest post is on Apdex as a (Key) Performance Indicator. Here's a brief introduction:

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Choosing Performance Management Tools

Illustration: Apdex Logo

With over 30 application performance management (APM) tool vendors offering scores of products, buyers face hundreds of confusing choices. Compounding the problem, the lack of a common taxonomy, or standard APM nomenclature, makes cross-vendor product comparisons especially challenging.

To address this challenge, NetForecast has developed an APM tools framework anyone can use to define APM requirements and map them to vendor offerings. On June 30 2010, Peter Sevcik will describe this framework in a Webinar hosted by the Apdex Alliance ...

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Generalizing The Apdex Standard

Illustration: Apdex Logo

Today the Apdex specification is entirely focused on application response time. Its first paragraph defines Apdex as “a method for calculating and reporting a metric of transactional application response time in the form of an index with a value of 0 to 1.”

But in reality, the Apdex method is much more widely applicable, and a more appropriate description is already spelled out in the first paragraph of the Wikipedia article on Apdex ...

Click to read more ...