You're in deep trouble if a product takes 6 months to deliver. I deliver every couple of days, max. Every iteration creates a deliverable, so I deliver it. I learn what to do next as I'm doing the current thing. I have a continuous dialog with my customers to facilitate that.
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RT @BarryLSmith
@allenholub Still not getting your point, @allenholub …. If a product may take a team 6 months to deliver, what do you consider an allowable …
https://twitter.com/BarryLSmith/status/1624811695402283010
Barry L Smith on Twitter

“@allenholub Still not getting your point, @allenholub …. If a product may take a team 6 months to deliver, what do you consider an allowable backlog (= work plan)? If they expect to take multiple iterations to produce a capability, are they not allowed to document the anticipated work?”

Twitter
@allenholub I don’t believe a first release of a product people will pay money for can be delivered in a couple of days, sorry. Once that first release is out and you are adding features to it you are definitely right though
@ecomba I've seen the contrary many times. They won't pay much, but they'll pay something. That tells you your product idea is viable. I won't stop you if you want to work in a waterfall with an infrequent big release, but I'd never consider doing that myself. I find that iteration and continuous feedback works much better.
@allenholub when I use the word “released” here I mean a product someone (business or consumer) will pay for
@ecomba An MMF is not an MVP. I release the MVP.
@allenholub I’d love to jump on a call with you and hear about that. It’s not the software creation/release that piques my interest, but how you get some company to pay for a week old product!
@ecomba What's the core of the core of the core idea? Take what you think of as the minimum marketable product. Cut that in half, and in half again, and in half again. That's your MVP. Build and release that. If the idea is viable, somebody will be willing to pay for it. If you can't find anybody who will pay for it, then the product isn't viable.
@allenholub I know the theory, don’t see it (people paying for it) in reality