Layered Architecture Details

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Layered Architecture by responsibility

As we previously saw, the MaXX Desktop layered architecture is divided into three (3) responsibility layers from which a MaXX aware application or service can be built. 

Here are the layers in question with a list of components (applications/services).

User Experience & Presentation

This layer is performing visual-oriented tasks like displaying User Interfaces and/or capturing user's input. Components and/or applications on that layer are communicating with the Desktop Support layer for computation and resources access via MaXX Links, a high performance messaging  library for inter-process communication.

User Experience & Presentation Components

Component Name
Responsibility
5Dwm  Enhanced Motif Window Manager.
Toolchest Desktop Application Menus and Launcher.
IconCatalog Visual and Interactive Application catalog using vector based icons.
File Manager - fm Visual and Interactive File Manager using vector based icons.
Desktop Desktop/Workspace manager.
 
Desktop Support

This is layer provides desktop computation support while also providing an abstraction-layer to various Back-end Services, where most of the actions is taking place. 

The exposed computations falls into  the following category:

  • functionally aggregator (composition and proxy design pattern) where a specific Desktop Support functionally is realized by combining one or more Back-end Service.
  • orchestration service that can coordinate the execution of other services/components/tasks.
  • session management keeps track of all application's layout and state, can create and retrieve snapshots of specific moments.
  • application launcher with real-time insights of current computation loads, application settings and preferences.

Desktop Support Components

Component Name
Responsibility
MaXX Launcher  Smart Application and Service Launcher.
MaXX Scope Smart Application and Service Orchestration for multi-core systems with CPU cores affinity & partitioning in mind.
MaXX Session User Desktop Session Manager with snapshot capability.
MaXX GPES General Purpose Execution Service - Centralize and Unified Task Execution Environment.
 
Back-end Services

This layer is where low-level system work is performed. For better security, this layer can only communicate with components/services from the Desktop Support layer.  Among the functionalities exposed by this layer are: hardware and application monitoring (MaXX Monitor), file-system accesses(MaXX File Service) and configuration management (MaXX Settings).

Back-end Services Components

Component Name
Responsibility
MaXX Settings  System Settings and User Preferences Management Service.
MaXX Monitor Centralized Hardware and Application monitoring with metric aggregation.
MaXX File Service High Performance and Multi-threaded File System Service.

 

updated - 2021-01-19

Work in progress...

 

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