All the dogs in the kennel are brown These dogs are brown These dogs are from the kennel Both induction and abduction involve making and testing hypotheses. With induction the general rule is hypothesized whereas with abduction the specific case is hypothesized. An inductive hypothesis is usually drawn from a large number of situations which together support the plausibility of the hypothesized general rule. Abductive inference on the other hand is usually conducted with information about a single situation.
Deduction is similar to abduction in the sense that a result is produced for a specific case.
With deduction, the result is a logical consequence of the general rule and a specific case that is held to be true. If both the rule and case are true, then the result is also true.