How are Parties and Pressure Groups different?

-Power: Parties try to get Share or All Power while PGs don’t care for Governmental Power -Accountability: Parties have to be Accountable to the Electorate and Public but PGs only to their Members -Policies: Parties make a Range that covers All/Most Areas of Gov Responsibility while PGs Narrow down Concerns and may care for a Single Issue -Membership: Parties have a Formal Entry and Organisation while PGs have Supporters usually.