So what is a Service Design Package and what’s it purpose?
The Service Design Package is a document that describes the services that are to be delivered and managed within the scope of the project.
The purpose of the document is to describe the services including the processes, people, partners and technology to be offered by the service to the end user and that support is management to a level that can be understood and ultimately approved by all stakeholders.
One of the most important aspects of the SDP is to call out what is being offered to the end user i.e. the products or services the end user receives. A common mistake made by service practitioners is to confuse the service with the product. For example, M365 (Microsoft 365) offers many products such as Word, Excel, One Drive etc but these are often listed as services.
Checklist Service Design Package SDP | IT Process Wiki (it-processmaps.com)