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Patterns

Testing Lessons From Civil Engineering

context-driven testing | development methodology | events | functional testing | general software testing | heuristics | patterns | perspectives | test analysis

Below is the paper I submitted as a prologue to an experience report, discussion, and (hopefully) additional research that I'm presenting for the first time during:

Attend CAST

Classify Performance Tests: IVECTRAS

context-driven testing | heuristics | non-functional testing | patterns | performance testing | performance testing patterns | project management | test management
This is the second installment of a currently unknown number of posts about heuristics and mnemonics I find valuable when teaching and conducting performance testing.
 
Other posts about performance testing heuristics and mnemonics are:
 
 
I have struggled for over 7 years now with first figuring out and then trying to explain all the different "types" of performance tests. You know the ones:
 
  • Performance Test
  • Load Test
  • Stress Test
  • Spike Test
  • Endurance Test
  • Reliability Test
  • Component Test
  • Configuration Test
  • {insert your favorite word} Test
 
Well, I finally have an alternative.
 
IVECTRAS

Test Patterns and Test Anti Patterns

patterns
Well I know Brian Marick experimented with the a few years ago and has moved on to the exemplar approach, there are drafts of what I feel will become an excellent book on his site, see blogroll on testing reflections for the link to his site.
However I still feel there is mileage in the idea and Brian was just once more too far ahead of the wave. So i am going to start some blogs on the subject of test patterns, good ideas in a given context, and will use examples of these as well as metaphors to try and demonstrate the reason they are effective.

Extract Transform Load - Data Migration Pattern...

general software testing | patterns
[textile]I am reviewing a test plan for the testing of the data migration from a legacy system to a new system... in the process I had to familiarise myself with the pattern used for the migration... "Extract Transform Load (ETL)":http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpatterns/html/ArcMovingDataCopies.asp

Interesting read... although it doesn't seem to mention that it should be used for one-off data migration, it seems to fit the profile.

The article is particularly useful as it warns you of some of the potential liabilities of using it.

Animated Workflow Patterns

general software testing | patterns
[textile]A colleague brought "www.workflowpatterns.com":http://www.workflowpatterns.com to my attention today... looks like a useful site for patterns that can be used for designing workflows... Particularly, I am interested in this for the purpose of facilitating the design of tests for workflow systems...

I am not sure if they will be relevant yet. Once I have had a chance (and a reason) to look through them, I will let you know...

patterns the microsoft way...

patterns
[textile]The funny thing with Microsoft is that if they are (a) for something, you know that it is probably because they know that it is the next big thing - and they intend to own it... if they are (b)against something, it might be propaganda because it is probably the next big thing, and they can't own it... :-)

"Microsoft's patterns & practices site":http://www.microsoft.com/resources/practices/community.mspx site is definitely in category (a)! It has many useful links to blogs and resources, including some up-coming webinars, like one on "Test Driven Development on July 15th 2004":http://msevents.microsoft.com/CUI/EventDetail.aspx?EventID=1032256315&Culture=en-US.

so what is a software testing pattern?

patterns
[textile]Sorry to anyone reading this if I am telling you what you already know, but for the uninitiated, a **pattern**, put simply, is a common approach to solving a recurring problem or problem-type.

They have been around since the 70's (but I was only knee high to a grasshopper then - honest)... but considering how useful they are, I am surprised that it isn't talked about as much and certainly not as much in the UK (not in my experience in testing over the last decade)...