The extended team model (ETM) differs from traditional outsourcing in some important ways:
In traditional outsourcing, there is little reliance on the in-house team; with ETM, the outsourced developers become almost members of the in-house team and therefore an extension of the home IT department.
Communication between the outsourced team and the in-house team usually occurs on a scheduled basis in the traditional model; the ETM model requires constant and direct collaboration across the extended development team, and communication is continual.
Traditional outsourcing models generally entail the hammering out of requirements and then allowing the outsourced team, along with its PM to go to work; the Extended Development Team model tends to leave overall project management with the core team at home, although sub-management of pieces may be given to the outsourced members.
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