Geeks With Blogs
BizTalk Blog by Chris Han System Design for Enterprise Agility,
July 2008 Entries
Poka-yoke and Defensive design
Poka-yoke (mistake-proofing) is a technique for mistake-proofing in process design. It's trading the flexibility for less variance. There is a similar concept in software called defensive design or defensive programming. Yesterday, I just experienced a good example of how important defensive design is. I was trying to plug my external hard-drive to my laptop via USB port. As you know the USB port actually has some sort of defensive design - the connectors in the metal enclosure is actually located ......

Posted On Tuesday, July 29, 2008 12:48 PM

MS project macro for Duration Format change
I was working a project schedule with MS project. I started by estimate the duration in 'months' using PERT, and later I decided to switch to 'days'. The I run into the duration format convertion trouble. I fund the set the 'Duration is entered in' drop down list in option menu didn't really do the job. See the full solution: ......

Posted On Friday, July 18, 2008 2:35 PM

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