B Computer Science Topic 1 Question and Answer 100% Correct

IB Computer Science Topic 1 Question and Answer 100% Correct SaaS (Software as a Service) - software distribution model in which applications are hosted by a vendor or service provider and provided to customers over a network The four types of changing to a new system - parallel running, pilot running, direct changeover and phased conversion Parallel Running - both the old and new system run at the same time Pilot Running - one section of the business is trying out the new software while one keeps using the old one Direct Changeover - moving straight from the old to new system Phased Conversion - slowly implementing the new software User Acceptance Testing - the last phase of software testing in which actual software testers test the software in real world scenarios Debugging - identifying and removing errors from computer hardware and software