| TopLevel | Contains top-level language classes such as Array, Number and String. |
| dw.alert | Contains classes for creating and managing system alerts for Business Manager users. |
| dw.campaign | Contains classes that allow you to interact with promotions and campaigns. |
| dw.catalog | Contains classes that allow you to interact with Products. |
| dw.content | Contains classes that allow you to access content. |
| dw.crypto | Contains classes that allow you to perform cryptographic operations. |
| dw.customer | Contains classes that allow you to interact with and manage Customer-related information. |
| dw.customer.oauth | Contains classes for OAuth authentication flows with third-party providers. |
| dw.customer.shoppercontext | Contains classes for managing Shopper Context. |
| dw.experience | Contains classes for Page Designer managed pages and components. |
| dw.experience.cms | Contains classes for accessing Salesforce CMS records. |
| dw.experience.image | Contains classes for image configuration and metadata. |
| dw.extensions.applepay | Contains classes that allow you to customize Apple Pay functionality. |
| dw.extensions.facebook | Contains classes that allow you to customize Facebook functionality. |
| dw.extensions.paymentapi | Contains extension points for customizing Payment API requests. |
| dw.extensions.paymentrequest | Contains classes that allow you to customize Payment Request functionality. |
| dw.extensions.payments | Contains classes for use with Salesforce Payments functionality. |
| dw.extensions.pinterest | Contains classes that allow you to customize Pinterest functionality. |
| dw.io | Contains classes that allow you to perform file and I/O-related operations. |
| dw.job | Contains classes for job and step execution management. |
| dw.net | Contains classes that allow you to perform FTP client, HTTP client and WebDAV-related operations. |
| dw.object | Contains classes that allow you to interact with custom objects and attributes. |
| dw.order | Contains classes that allow you to perform order and payment-related operations. |
| dw.order.hooks | Contains classes that participate in customization of Order processes. |
| dw.rpc | Contains classes that allow you to perform web service-related operations. |
| dw.sitemap | Contains classes for accessing and modifying custom sitemap files. |
| dw.suggest | Contains classes that allow you to interact with suggestions based on terms entered into storefront search fields. |
| dw.svc | Contains classes that allow you to define and execute remote services. |
| dw.system | Contains classes that allow you to access system objects such as logs and sites. |
| dw.template | Contains classes for rendering ISML and Velocity templates. |
| dw.util | Contains classes that provide utility methods. |
| dw.value | Contains classes associated with values, such as Money and Quantity. |
| dw.web | Contains classes that allow you to perform HTTP-related operations. |
| dw.ws | Contains classes for SOAP-based web service operations. |