The main reason for this is due to the fact that XP & SCRUM just has a concept of a team – this includes everyone who is needed to deliver a product or rather something of value to the customer. The idea that when the time comes to deliver everyone needs to be able to help to deliver the product – this is mainly because there is not one person responsible for the delivery – the team is responsible. So this means that if there are tests to complete before the iteration completion date and no development work – then everyone needs to “muck in” to complete the tests.
This leads to teams of individuals with multiple skillsets – as an individual you might for one day have your developer “hat” on – the next day your “hat” is firmly in the “test” ring. Traditional role definitions are probably not well used here and are probably redundant. You are essentially just a team member who has more experience in development than testing, BUT you must be able to help with testing if the needs arise. If there is a bottle neck you must be able to relieve the pressure on the bottle neck – otherwise the “team” will not deliver.
This ability to learn different skills leads me to another important asset of any team member – you must be willing to learn. I think Agile especially encourages this, since everything is an experiment? I was listening to a Podcast with Lisa Crispin and a couple of her final thoughts centred on the need to learn and willingness to learn. It must have struck a chord - because I was skiing at the time! I believe these are key skills for anybody working within in an Agile team.
For me this leads to a couple of core things to look for in team members:
- Willingness to learn
- Ability to adapt to the needs of the team