Guesstimate is a spreadsheet for non-precise calculations (estimations and approximations). Watch a two-minute video on the homepage to get a better idea of how it works.
While playing around with it and reading more on similar tools, I also found these two Wikipedia pages interesting:
“Internet-era ways of working” is an excellent collection of points (somewhere between the design principles and TODO list items) on how to organize the work / business / project in the modern age. Some of these are obvious and well-known, others are a bit less so. Read the whole article for more details, but here are the main items:
Design for user needs, not organisational convenience
Test your riskiest assumptions with actual users
The unit of delivery is the empowered, multidisciplinary team
Do the hard work to make things simple
Staying secure means building for resilience
Recognise the duty of care you have to users, and to the data you hold about them
Start small and optimise for iteration. Iterate, increment and repeat
Make things open; it makes things better
Fund product teams, not projects
Display a bias towards small pieces of technology, loosely joined
Treat data as infrastructure
Digital is not just the online channel
I’ve been thinking a lot about this subject over the last few years. Some of the items above I practice almost religiously (7, 8, 9, 10). Some I think I do, but I’m not sure (2, 3, 4, 6, 11, 12). Some I’m still figuring out (1, 5, 11, 12). But overall, I think the article is insightful as much of this, even the most obvious parts, are quite difficult to put in words.
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