| ApplicationFramework | Top-level framework for web applications |
| CheckboxFormField | Generator for checkbox input fields |
| Classification | Metadata type representing hierarchical ("Tree") controlled vocabulary values |
| ClassificationFactory | Factory for producing and manipulating Classification objects |
| ControlledName | Metadata type representing non-hierarchical controlled vocabulary values |
| ControlledNameFactory | Factory for manipulating ControlledName objects |
| Database | SQL database abstraction object with smart query caching |
| Date | |
| DoublyLinkedItemList | |
| EventLog | Class for storing and retrieving event information from database |
| File | |
| FileFactory | Factory for manipulating File objects |
| FormField | Generator for HTML form fields |
| FormTool | |
| Forum | A converastion forum which includes topics and messages |
| GlobalSearchEngine | |
| Image | |
| ItemFactory | |
| JsonHelper | |
| Message | Abstraction for forum messages and resource comments |
| MetadataField | |
| MetadataSchema | |
| OAIClient | |
| OAIItem | |
| OAIItemFactory | |
| OAIServer | |
| OptionFormField | Generator for option form fields |
| PasswordFormField | Abstraction for password forms |
| Plugin | Base class for all plugins |
| PluginManager | Manager to load and invoke plugins |
| PopupWindow | Lightboxed pop-up window with repeat prevention |
| Privilege | User rights management framework allowing custom privege definition |
| PrivilegeFactory | Factory which extracts all defined privileges from the database |
| PSDocument | |
| PSTable | |
| Qualifier | |
| QualifierFactory | |
| Recommender | |
| Resource | Represents a "resource" in CWIS |
| ResourceFactory | |
| RSS | |
| RSSClient | |
| SavedSearch | |
| SavedSearchFactory | Factory for manipulating saved search objects |
| SearchEngine | |
| Session | |
| SPTDatabase | |
| SPTDate | |
| SPTEventLog | |
| SPTImage | |
| SPTOAIItem | |
| SPTOAIItemFactory | |
| SPTOAIServer | |
| SPTRecommender | |
| SPTSearchEngine | |
| SPTUser | |
| SPTUserFactory | |
| SystemConfiguration | |
| TextFormField | Generator for text input fields |
| Topic | Abstraction for topics within a Forum |
| User | |
| UserFactory | |
| Vocabulary | Controlled vocabulary |
| VocabularyFactory | Factory for manipulating Vocabulary objects |
| XMLParser | |
| XMLStream |