Scrum vs XP
Few question WRT introducing Agile - specifically\TBD, either Scrum or XP - to a new organization:
- Both Scrum and XP are Agile frameworks. what are the key differences between the two?
- When introducing either of them to an organization, which is more suitable and why?
- What would be different in how to introduce either of them?
Thanks!
The answer depends upon the products being delivered, their complexity, the faith you have in best practices, and the extent to which programming is involved at all.
Why not sponsor teams to experiment for themselves, advocating empirical value delivery at all times, and vowing to remove those organizational constraints which impede their success?
It's not an either/or choice between Scrum and XP. A lot of the components are in Scrum, while the practices in XP that aren't in Scrum don't contradict anything within Scrum, allowing teams to use them.
There are some minor differences. An iteration in XP is between 1 and 3 weeks, while a Sprint in Scrum is up to a month. XP has an added layer of release planning, while Scrum only has Sprint Planning (which corresponds to XP's iteration planning). Practices like User Stories and Spikes are part of XP, while Scrum only talks about Product Backlog Items in a more general sense. XP tends to be more prescriptive on a set of practices and how to implement those practices than Scrum.
Since there are more practices, the description of XP is much longer than the Scrum Guide. I'd recommend checking out Extreme Programming: A Gentle Introduction (free website) or Kent Beck's Extreme Programming Explained (book for sale).
There's not a significant difference in how you would introduce Scrum or XP to a team. If you are already working, it would be small steps from where you are now to your desired state. Otherwise, the team can begin using the practices and artifacts from either framework. Retrospectives are part of both Scrum and XP, and give the team the opportunity to inspect and change their way of working.
Just FYI, I interviewed Ken Schwaber in 2014, and he mentioned that Scrum started before XP. https://www.agileconnection.com/interview/origins-and-future-scrum-interview-ken-schwaber
BOTH!
Start with the Scrum framework and add the best practices for the Developers (http://www.extremeprogramming.org/rules.html).
Does anyone know of any good resources that provide an insightful comparison between Scrum versus XP?
both