![rw-book-cover](https://readwise-assets.s3.amazonaws.com/static/images/article1.be68295a7e40.png) ## Metadata - Author: [[black-swan-farming|Black Swan Farming]] - Full Title:: Cost of Delay Divided by Duration - Category:: #🗞️Articles - URL:: http://blackswanfarming.com/cost-of-delay-divided-by-duration/ - Finished date:: [[2023-09-15]] ## Highlights > **CD3: C**ost of **D**elay **D**ivided by **D**uration ([View Highlight](https://read.readwise.io/read/01habrz2m5kafxvb6ty6bzmf7k)) > CD3 is one specific form of the “WSJF – Weighted Shortest Job First” queuing method. ([View Highlight](https://read.readwise.io/read/01habrz6bsgvz8yv32mzr654kz)) > In the case of CD3 we are weighting by [*Cost of Delay*](http://blackswanfarming.com/cost-of-delay/). (Saying “Cost of Delay Divided by Duration” more than a few times get rather tiring, so to ease communication we can shorten this to CD3.) ([View Highlight](https://read.readwise.io/read/01habrzktjp8pfzkmdsz6ej8zj)) > CD3 optimises the Return on Investment by minimising the total *Delay Cost* incurred, given a set of potential options. In ([View Highlight](https://read.readwise.io/read/01habs02b74hvqrn4bqv6y27f5)) > Because CD3 uses Duration on the denominator, it also has the benefit of encouraging the breakdown of work into smaller batches ([View Highlight](https://read.readwise.io/read/01habs0j3b4mqc63k1ncnk83ts))