Agile methodologies have a patchy track record in BI/DW projects. A lot of this is to do with adopting the methodologies themselves - as I've alluded to in prior posts there are a heap of obstacles in the way that are cultural, process and ability based.
I was discussing agile adoption with a client who readily admitted that their last attempt had failed completely. The conversation turned to the concept of the Zero sprint and he admitted part of the reasons for failure was that they had allowed Zero time for their Zero sprint.
What is this Zero sprint anyway?
The reality of any technical project is that there are always certain fundamental decisions and planning processes that need to be gone through before any meaningful work can be done. Data Warehouses are particularly vulnerable to this - you need servers, an agreed design approach, a set of ETL standards - before any valuable work can be done - or at least without incurring so much technical debt that your project gets sunk after the first iteration cleaning up after itself.
So the Zero Sprint is all that groundwork that needs to be done before you get started. It feels counter agile as you can easily spend a couple of months producing nothing of any direct value to the business/customer. The business will of course wonder where the productivity nirvana is - and particularly galling is you need your brightest and best on it to make sure you get a solid foundation put in place so it's not a particularly cheap phase either.
How to structure and sell the Zero sprint
The structure part is actually pretty easy. There's a set of things you need to establish which will form a fairly stable product backlog. Working out how long they will take isn't that hard either as experienced team members will be able to tell you how long it takes to do pieces like the conceptual architecture. It just needs to be run like a long sprint.
Selling it as part of an Agile project is a bit harder. Because you end up not delivering any business consumable value you need to be very clear about what you will deliver, when you will deliver it and what value it adds to the project. It starts smelling a lot like Waterfall at this point, so if the business is skeptical that anything has changed, you have to manage their expectations well. Be clear that once the initial hump is passed, the value will flow - but if you don't do it the value will flow earlier to their expectations, but then quickly after the pipes will clog with technical debt (though you may want to use a different terminology!).
This post reproduced courtesy of BI Monkey