Final answer:
The item not considered a Scrum artifact among the options is 'd) Installation log'. Scrum artifacts include the Product Backlog, Sprint Backlog, and Increment, which are all related to the planning and development of product features in an agile environment.
Step-by-step explanation:
The item that is not a Scrum artifact in the list provided is d) Installation log. In Scrum methodology, the artifacts include the Product Backlog, Sprint Backlog, and the Increment of potentially shippable product functionality. These artifacts are integral to the Scrum process, which is an agile development methodology used to facilitate the development of a product by dividing it into manageable sprints or iterations.
The Product Backlog is a prioritized list of features, enhancements, bug fixes, and other changes to the product that the development team will work on. The Sprint Backlog is a list of tasks and work to be completed during a specific Sprint, which is usually a time period of one month or less. The Increment is the sum of all the Product Backlog items completed during a Sprint and all previous Sprints, which is at the end of a Sprint a potentially shippable product. In contrast, an installation log is typically a record or document detailing the installation process of software or hardware, which isn't specific to Scrum.