Synchronization system for entities maintained by multiple applications

A computer-readable storage device for controlling a computing device implementing a synchronization system to synchronize data of entities maintained by applications, by a method comprising:

• for each application, providing an entity adapter that provides a common interface for accessing entities of that application via an adapter interface of the application;
• receiving from a source application an indication of a compound transaction performed by the source application for modifying a version of a compound entity, the compound transaction comprising simple transactions for modifying simple entities of the compound entity;
• waiting until any previously sent transaction for the compound entity completes;
• when a conflict exists between versions of a simple entity of the compound entity maintained by the source application and a target application and the conflict is to be resolved in favor of the target application, disabling an action associated with the simple transaction for the simple entity;
• and
• sending a transaction corresponding to the received transaction with the action of a simple entity of the transaction disabled to the entity adapter of the target application for applying the compound transaction to the compound entity of the target application via the adapter interface of the target application.

A computing device implementing a synchronization system to synchronize data of entities maintained by applications, comprising:

• a memory storing computer-executable instructions of:
• for each application, an entity adapter that provides a common interface for accessing entities of that application via an adapter interface of the application;
• a component that receives from a source application a transaction for a first entity;
• a component that, after receiving the transaction for the first entity, waits for all previously sent transactions for the first entity that were sent to the entity adapter of a target application to complete;
• a component that, when all previously sent transactions for the first entity that were sent to the entity adapter of the target application have been completed, sends a transaction corresponding to the received transaction to the entity adapter of the target application for forwarding to the adapter interface of the target application;
• and
• a component that, when a conflict exists between the data of the first entity maintained by the source application and the target application, disables effect of an action of the received transaction when the conflict is to be resolved in favor of the target application;
• and
• a processor that executes the computer-executable instructions stored in the memory.