Inspection leader See moderator. Inspector: See reviewer. Installability: The capability of the software product to be installed in a specified environment [ISO/IEC 25000]. See also Portability. Integration: The process of combining components or systems into larger assemblies. Interaction diagram: A subset of behavior diagrams which emphasize object interactions. This includes communication, interaction overview, sequence, and timing diagrams. Interaction overview diagram: A variant of an activity diagram which overviews the control flow within a system or business process. Interoperability: The capability of the software product to interact with one or more specified components or systems [ISO/IEC 25000]. See also functionality. Interview: A conversational technique where the interviewer is asking the responder to obtain information on specified topic. Iterative development model A development lifecycle where a project is broken into a usually large number of iterations. An iteration is a complete development loop resulting in a release (internal or external) of an executable product, a subset of the final product underdevelopment, which grows from iteration to iteration to become the final product.