B) When defining service composition candidates it is important to ensure that failure conditions that involve exception handling logic are captured. and C) The scope and complexity of a service composition candidate can help determine whether the eventual service composition should belong to the task service model or the orchestrated task service model. and D) The identification of service composition candidates may establish additional requirements that could impact the technical architecture of the service inventory (for example, the need to establish a transaction across services).

A) When defining service composition candidates you should only focus on the least common runtime scenarios because the most common runtime scenarios are defined during the service development stage.