US 8,028,053 B2 · System and method for dependency management

Abstract

A system and method for dependency management are provided. The system for dependency management, includes a provider object management module managing a provider object that provides information, a consumer object management module managing a consumer object that executes a predetermined task based on the information provided by the provider object, an information object management module managing an information object that manages the provider object and the consumer object based on the information, a dependency storage module storing dependency information between the provider object and the consumer object, and a dependency management module examining dependency between the provider object and the consumer object based on the dependency information that is received from the dependency storage module and controlling activation and deactivation of the provider object and the consumer object according to a result of the dependency examination.

Claims21

Dependent claims

A system for dependency management, comprising:

a provider object management module managing a provider object that provides information;
a consumer object management module managing a consumer object that executes a predetermined task based on the information provided by the provider object;
an information object management module managing an information object that manages the provider object and the consumer object based on the information;
a dependency storage module storing dependency information between the provider object and the consumer object;
and
a dependency management module examining dependency between the provider object and the consumer object based on the dependency information that is received from the dependency storage module and controlling activation and deactivation of the provider object and the consumer object according to a result of the dependency examination,
wherein at least one of the modules is a hardware component,
wherein if the consumer object management module requests to deactivate the consumer object, the dependency management module inspects whether information used by the consumer object to be deactivated is used by any other consumer object, and when any other consumer object using the information does not exist, the dependency management module controls deactivating the provider object providing the information.

5 more elements

A method for dependency management in a dependency management system including a processor, comprising:

requesting information on all observation information objects used by a consumer object;
acquiring information on a dependency map corresponding to a context of the consumer object from a dependency storage module, the dependency map indicating a relationship between the context and the observation information objects used by the consumer object, the dependency map being stored in the dependency storage module and the context defining a service action performed by the consumer object;
examining by the processor, dependency between the consumer object to be activated and a provider object observing and providing information by using the information of the dependency map, wherein the consumer object executes the service action based on the information provided by the provider object;
and
controlling activation and deactivation of the consumer object and the provider object according to a result of the examination,
wherein the examining of the dependency comprises determining, based on the information on the dependency map, whether all of provider objects that observe information needed to determine the context of the consumer object have been registered in the dependency management system, and
wherein the controlling of the activation and deactivation comprises activating the provider object and the consumer object when all the provider objects have been registered in the dependency management system, and
wherein the provider object is a sensor that observes information and the consumer object is a context-aware service object (CAS) that determines whether to provide a service based on the observed information, and
wherein the controlling of the activation and deactivation further comprises activating an observation information object corresponding to the provider object when all the provider objects have been registered in the dependency management system.

6 more elements

A method for dependency management in a dependency management system including a processor, comprising:

receiving information indicating that a provider object is added to the dependency management system;
requesting restart of a consumer object that is in a resolved state among consumer objects;
acquiring, from a dependency storage module, a dependency map indicating a relationship between a context of the consumer object and an observation information object corresponding to information observed by the provider object and needed to determine the context, wherein the dependency storage module stores the dependency map and the context defines a service action performed by the consumer object;
examining by the processor, dependency between the provider object observing information and the consumer object that is in the resolved state among the consumer objects by using the dependency map;
and
controlling activation and deactivation of the consumer object according to a result of the examination,
wherein the examining of the dependency comprises determining whether all of provider objects that observe information needed to determine the context of the consumer object have been registered in the dependency management system, and
wherein the controlling of the activation and the deactivation comprises activating the provider object and the consumer object that is in the resolved state when all the provider objects have been registered in the dependency management system, and
wherein the provider object is a sensor that observes the information and the consumer object is a context-aware service object (CAS) that determines whether to provide a service based on the information, and
wherein the controlling of the activation and the deactivation comprises activating the observation information object corresponding to the information observed by the provider object when all the provider objects have been registered in the dependency management system.

7 more elements

A computer storage medium having a computer readable program recorded therein, the program causing a computer to execute a method for dependency management, the method comprising:

requesting information on all observation information objects used by a consumer object;
acquiring information on a dependency map corresponding to a context of the consumer object from a dependency storage module, the dependency map indicating a relationship between the context and the observation information objects used by the consumer object, the dependency map being stored in the dependency storage module and the context defining a service action performed by the consumer object;
examining dependency between the consumer object to be activated and a provider object observing and providing information by using the information of the dependency map, wherein the consumer object executes the service action based on the information provided by the provider object;
and
controlling activation and deactivation of the consumer object and the provider object according to a result of the examination,
wherein the examining of the dependency comprises determining, based on the information on the dependency map, whether all of provider objects that observe information needed to determine the context of the consumer object have been registered in the dependency management system, and
wherein the controlling of the activation and deactivation comprises activating the provider object and the consumer object when all the provider objects have been registered in the dependency management system, and
wherein the provider object is a sensor that observes information and the consumer object is a context-aware service object (CAS) that determines whether to provide a service based on the observed information, and
wherein the controlling of the activation and deactivation further comprises activating an observation information object corresponding to the provider object when all the provider objects have been registered in the dependency management system.