Exin ITIL - ITIL Foundation (V4)

The purpose of the SLM practice is to set clear business-based targets for service performance, so that the delivery of a service can be properly assessed, monitored, and managed against these targets. SLM involves service level activities, including:

Defining service levels

Documenting

Actively managing them

https://www.bmc.com/blogs/itil-service-level-management/

The purpose of the improve value chain activity is to ensure continual improvement of products, services, and practices across all value chain activities and the four dimensions of service management.

https://wiki.process-symphony.com.au/framework/lifecycle/service-value-systemitil-4/#:~:text=The%20purpose%20of%20the%20improve,four%20dimensions%20of%20service%20management .

CIs are simply any component that needs to be managed in order to deliver an IT service. A server, a virtual server, or even the configuration of an application could be considered a CI, for example

https://www.bmc.com/blogs/itil-asset-configuration-management/#:~:text=among%20your%20CIs-,Configuration%20items%20(CIs),considered%20a%20CI%2C%20for%20example .

Costs are the amount of money spent on a specific activity or resource. From the service consumer’s perspective, there are two types of cost involved in service relationships:

Costs removed from the consumer by the service (a part of the value proposition). For example, for a car sharing service, the customer does not pay for the actual cost of purchasing the car.

https://www.bmc.com/blogs/itil-key-concepts-service-management/

The purpose of the service configuration management practice is to ensure that accurate and reliable information about the configuration of services, and the CIs that support them, is available when and where it is needed. This includes information on how CIs are configured and the relationships between them.

https://wiki.process-symphony.com.au/framework/lifecycle/process/service-configuration-management-itil-4/

A help desk is considered to be focused on break-fix (what ITIL calls incident management), whereas a service desk is there to assist with not only break-fix but also with service requests (requests for new services) and requests for information (such as “how do I do X?”).

https://www.atlassian.com/itsm/service-request-management/help-desk-vs-service-desk-vs-itsm#:~:text=A%20help%20desk%20is%20considered,I%20do%20X%3F%E2%80%9D ).