The core components of PDS WITSML technology are divided into these areas:
PDS WITSMLstudio Store and WITSMLstudio Desktop utilize the core WITSML libraries.
The "PDS.WITSMLstudio" solution provides reusable components referenced by all PDS WITSMLstudio applications containing the following projects:

Core
Contains common classes related to WITSML and are referenced by other projects, including but not limiting to the following:
- ChannelDataReader - facilitates parsing and reading of log channel data
- DataObjectNavigator - a framework for navigating a WITSML document
- WitsmlParser - static helper methods to parse WITSML XML strings
- Extension methods - commonly used methods for WITSML classes
Core.UnitTest
Contains unit tests for PDS WITSMLstudio.
Framework
Provides the composition container used to resolve dependencies.
Framework.Web
Configures the composition container to resolve dependencies for web projects and provides security.
Store.Core
Hosts WITSML store service implementation, including service interfaces and high level data provider implementation, including:
- WitsmlDataAdapter - encapsulates basic CRUD functionality for WITSML data objects
- WitsmlDataProvider - implements support for WITSML API functions
- WitsmlQueryParser - handles parsing of WITSML input in a request
- EtpDataProvider - implements support for ETP API functions
Store.IntegrationTest
Contains integration tests for PDS WITSMLstudio Store.
Store.Jobs
Implements scheduled and recurring jobs for PDS WITSMLstudio Store.
Store.Web
Implements configuration and security for WITSML and ETP endpoints.
Architecture - PDS WITSMLstudio Store
The “PDS.WITSMLstudio.Store” solution builds PDS WITSMLstudio Store with MongoDB for data storage and configures Witsml.Web as an IIS web application. It contains the following projects:

Store
Configures and hosts PDS WITSMLstudio Store on IIS.
Store.MongoDb
Contains the WitsmlDataAdapter implementation for MongoDB.
Store.MongoDb.IntegrationTest
Integration tests for Store.MongoDb.
Architecture - PDS WITSMLstudio Desktop
The “PDS.WITSMLstudio.Desktop” solution builds PDS WITSMLstudio Desktop, a Windows desktop application written in C# and WPF using plug-in technology that can connect to any WITSML server via SOAP or ETP.
It contains the following projects:

Desktop
Provides the main application user interface for PDS WITSMLstudio Desktop.
Desktop.Core
A collection of reusable components and plug-in framework.
Desktop.IntegrationTest
Contains integration tests for the WITSML Browser plug-in and core functionality.
Desktop.Plugins.DataReplay
Data Producer plug-in that simulates streaming data in and out of a WITSML server.
Desktop.Plugins.EtpBrowser
ETP Browser plug-in to communicate with a WITSML server via ETP protocol.
Desktop.Plugins.ObjectInspector
Object Inspector plug-in that displays WITSML data objects with corresponding Energistics schema information.
Desktop.Plugins.WitsmlBrowser
WITSML Browser plug-in to communicate with a WITSML server via SOAP.
Desktop.UnitTest
Unit tests for the WITSML Browser and core functionality.