key ask for Sitecore Migration/Up-gradation.

• Current Version of Sitecore?
• Helpful to identify the scope of migration.
• List of all components and their uses and dependencies?
• Helpful to identify the dependencies and scope of migration
• What is the approach for digital assets/Media library management?
• To understand the type of content like audio, images, multimedia and how they are managing.
• What is the current search approach
•  Is the solution multilingual? If so, does the content on the multilingual versions differ?
• To understand the scope and complexity of the migration.
• What is the current architecture and process flow of the CD and CM server?
•   To understand the current infrastructure and deployment process.
• Help to decide the migration approach.
• Scope for performance and process improvement.
•   List of Sitecore customizations types and their details?
• Pipeline customization
• Changes in the caching approaches and settings?
• Changes in the web.config?
• Url aliases or rewriting implemented?
• What is the design of current Information architecture, content models and data models?
•  For migration and performance prospective we should know what all our content are interdependent/linked or reusable.
• To define the serialization approaches for the migration
• To understand the inputs, Outputs, and Designs
• To understand what types of content elements appear consistently on multiple pages or sites.
• Required Server configuration (Software and Hardware) latest version and load balancer details
• It’s required to check the compatibility with the Sitecore new version.
• Help to decide the migration approach.
• We can review and suggest the Scope for the performance improvement.
• Are all existing sites compatible on MVC framework?
•   There is a lot of architectural difference in MVC and web form like web form work with Page controller pattern and MVC work on the front Controller approach.
• In case of migration from web form to MVC all the existing rendering and design components needs to be reviewed or rewritten.
• List of modules which implemented/added like WFFM, Email campaign connector or CRM connector etc. And their latest version details?
• It’s required to check the compatibility with the new version
• To understand the scope like In case of WFFM, it will require more manual process
• Challenges like cannot add form from the new Experience Editor interface
• Important aspect of Solution Upgrade.
•  Any custom modules is integrated like Advanced Database Crawler, blogging, SES, etc.)
• List of website instances and their features.
• To understand the technical challenges and scope of migration.
•  Help to design and upgrade the components
• Is there any mobile device detector module associated
• Help to decide the migration approach.
• What all are the custom roles defined?
• Help to decide the scope of migration
• A list of the system template changed/manipulated?
•  Help to decide the scope of migration.
• Are all website code are using Sitecore standard field rendering or not?
•  To understand the scope of migration.
• What all are databases used, required their version details.
• Help to decide the scope and possibility as Oracle database is not yet supported in the latest version
• How much dependencies of Analytics data?
• It helps us to define the scope of migration.
• Any out of the box customization like HTTP handlers?
• It helps us to define the scope of migration.
• What is the Content authoring approach and what all are the workflow implemented?
• To understand the scope of migration.
• To understand the scope of migration.
• Is there any global and template specific placeholder settings implemented?
• To understand the scope and complexity of the migration.
• What all are the types of authorization role to access the content?
• Very important to understand their security model that they have given/implemented for the users.