I try to explain to my students that they should start with structure before programming any features. Get the OS to run with some reasonable tasks, exchange some information/messages/... between sub-systems or processes, etc.
There seems to be a proper term for this: Start with a Walking Skeleton. Apparently the term originates with Alistair Cockburn. It is often used in conjunction with the Incremental Architecture pattern.
I feel rather stupid of not knowing what others had done before, but at least I know of the concepts...
It says that this is a useful strategy for large systems. I think it is quite useful for small systems as well, especially if you are not very familiar with the features to be developed. A walking skeleton allows you to try different things in a running platform and with decent version control you can always reverse to something that is running, even if it has little customer value. And the effort of making the skeleton work is never wasted.
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Monday, November 22, 2010
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