Participation in Daily Scrum
It is mentioned in the Scrum guide 2020 that "If the Product Owner or Scrum Master are actively working on items in the Sprint Backlog, they participate as Developers."
Since each member of the scrum team has their own role. How is this possible ?
I need further explanation, please!
Try thinking of it the other way round. Why should such an arrangement be impossible?
Scrum is minimally prescriptive. Why then should the 3 Scrum accountabilities be mutually exclusive?
To build on Ian's mention of accountabilities, Scrum no longer has roles, it has accountabilities. I think this is an important distinction.
The following statement in the guide, may be open to interpretation that "one" means one defined role, but really it means there is one Scrum Team member taking on that accountability.
The Scrum Team consists of one Scrum Master, one Product Owner, and Developers.
As an example, a Scrum Team member accountable for development may also take on the accountability of Scrum Master or vice versa. The Scrum Team member taking on Product Owner accountability can also do development or to use guide terms be actively be working on items in the Sprint Backlog.
Within your organization you may have roles aligned to accountabilities, but within a Scrum Team there is no such alignment.
The entire Scrum Team is accountable for creating a valuable, useful Increment every Sprint. Scrum defines three specific accountabilities within the Scrum Team: the Developers, the Product Owner, and the Scrum Master.
Thank you for your answer.
So if scrum master and product owner are also doing the work ( developer and scrum master for example ), then he must participate as a developer, otherwise ( the person is only a scrum master ), he may attend but he is not accountable for the work done.