Abstract: Disclosed herein is a method for key-value caching. The method may include initializing a key-value cache and processing data in the order of a key-value store, a service, and the key-value cache.

Abstract: Disclosed herein are an apparatus and method for a multi-cloud service platform. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program may receive a service request from a user client device, generate a multi-cloud infrastructure service using multiple clouds in response to the service request, make the multiple clouds interoperate with mufti-cloud infrastructure in order to provide the multi-cloud infrastructure service, and generate a multi-cloud application runtime environment corresponding to the multi-cloud infrastructure service.

Abstract: Disclosed herein are an apparatus and method for managing a multi-cloud computing infrastructure. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives a request for autonomous operation of a multi-cloud computing infrastructure from a user, generates an information object having a name of a namespace corresponding to the multi-cloud computing infrastructure and previously generated universal unique identifier (UID) information, manages multiple resources included in the multi-cloud computing infrastructure, provisions the multi-cloud computing infrastructure by generating computing instances constituting the components of the multi-cloud computing infrastructure, manages the lifecycles of the computing instances, and performs the autonomous operation of the multi-cloud computing infrastructure depending on operation conditions for the multi-cloud computing infrastructure.

Abstract: A vertical probe pin that includes: an elastic beam part which is disposed between a lower contact portion in contact with a device to be tested and an upper contact point spaced apart at a predetermined distance from the lower contact point and in contact with a test device. The vertical probe pin is composed of a pair of elastic beams having a predetermined gap in order to be elastically deformed by an external force; and a separation prevention protrusion part provided with separation prevention protrusions protruding from at least one of the pair of elastic beams in order to prevent the elastic beam part from being separated through an upper guide hole.

Abstract: Disclosed herein are a cloud computing-based simulation apparatus and a method for operating the simulation apparatus. The method for operating a cloud computing-based simulation apparatus includes profiling a simulation in consideration of a simulation model and setup items that are requested by a user, when there is a history corresponding to results of the profiled simulation, calculating a resource configuration probability distribution for the simulation using the history, replicating the simulation environment to multiple simulation environments by selecting resource configurations in N simulation environments depending on the resource configuration probability distribution, where N is an integer of 2 or more, and simultaneously executing simulations in the multiple simulation environments.

Abstract: Disclosed herein are an apparatus and a method for providing a virtual multi-cloud service. The apparatus for providing a virtual multi-cloud service includes one or more processors and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to create a virtual machine cluster requested by an operator using an external cloud computing infrastructure, install a container orchestration tool in the virtual machine cluster using container-related information registered by the operator in advance, and create a virtual cloud requested by the operator using the container orchestration tool.

Abstract: Disclosed herein are a container orchestration apparatus in an environment of multiple geographically distributed clouds and a method using the same. The container orchestration method includes receiving, by the container orchestration apparatus, a service request from a device using service; and dynamically deploying, by the container orchestration apparatus, a service node and a service instance for processing the service request based on auto-scheduling of a container orchestration cluster based on the environment of multiple geographically distributed clouds.

Abstract: Disclosed herein are an apparatus and method for providing interoperability of a multi-cloud service. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives a service request for the multi-cloud service from a user client, creates a multi-cloud service in response to the service request, configures functions for interoperability between multiple cloud services in the multi-cloud service, and provides the multi-cloud service in which the functions for interoperability are configured to the user client.

Abstract: Disclosed herein are an apparatus and method for a multi-cloud service platform. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program may receive a service request from a user client device, generate a multi-cloud infrastructure service using multiple clouds in response to the service request, make the multiple clouds interoperate with mufti-cloud infrastructure in order to provide the multi-cloud infrastructure service, and generate a multi-cloud application runtime environment corresponding to the multi-cloud infrastructure service.

Abstract: An apparatus and method provide a cloud brokerage service based on multiple cloud-computing systems. The method includes receiving, by a cloud service broker, a request for a cloud service from a cloud service client, the cloud service broker being connected with the multiple cloud-computing systems, providing, by the cloud service broker, a cloud service brokerage based on cloud services of the multiple cloud-computing systems, the cloud service brokerage enabling the cloud service complying with the request to be provided to the cloud service client, transmitting, by the cloud service broker, a control request for the cloud service to one or more cloud-computing systems of the multiple cloud-computing systems, and controlling, by the cloud service broker, a status of the cloud service after the cloud service broker receives an acknowledgment for the control request from the one or more cloud-computing systems.

Abstract: Disclosed herein are an apparatus and method for providing a cloud brokerage service based on multiple clouds. The method includes receiving, by a cloud service broker, a request for a cloud service from a cloud service client, the cloud service broker being connected with the multiple cloud-computing systems; generating, by the cloud service broker, the cloud service complying with the request based on one or more services registered in a service catalogue of the cloud service broker; newly registering, by the cloud service broker, the generated cloud service in the service catalogue; and providing, by the cloud service broker, the newly registered cloud service to the cloud service client.

Abstract: Disclosed herein are an apparatus and method for providing a cloud service based on cloud service brokerage. The method includes receiving, by a cloud service broker, a first request for a cloud service from a cloud service client, wherein the cloud service broker is connected with the multiple cloud-computing systems; providing, by the cloud service broker, a cloud service brokerage based on cloud services of the cloud-computing systems, wherein the cloud service brokerage enables the cloud service complying with the first request to be provided to the cloud service client; and monitoring, by the cloud service broker, a service level of the cloud service during provision of the cloud service and controlling, by the cloud service broker, the cloud service such that the service level satisfies conditions of the first request.

Abstract: Disclosed herein are apparatus and method for validating service control status. The apparatus for validating service control status includes a service control request unit for requesting control of a service from a computing system, a service control status checking period generation unit for generating a service control status checking period in order to check completion of the service control, and a service control status checking communication unit for performing service control status checking communication with the computing system based on the service control status checking period.

Abstract: Disclosed herein are a cloud computing-based simulation apparatus and a method for operating the simulation apparatus. The method for operating a cloud computing-based simulation apparatus includes profiling a simulation in consideration of a simulation model and setup items that are requested by a user, when there is a history corresponding to results of the profiled simulation, calculating a resource configuration probability distribution for the simulation using the history, replicating the simulation environment to multiple simulation environments by selecting resource configurations in N simulation environments depending on the resource configuration probability distribution, where N is an integer of 2 or more, and simultaneously executing simulations in the multiple simulation environments.

Abstract: A cloud service broker apparatus and method thereof are provided. The cloud service broker apparatus includes a controller configured to provide a brokerage service between a plurality of cloud service providers and a cloud service user by dividing a cloud service requested by the cloud service user into a plurality of cloud service segments and distributing each of the cloud service segments to each of the clouds.

Abstract: Disclosed herein are an apparatus and method for sharing a file between applications. The apparatus includes a file-mapping management unit for checking the file open mode of a file that one or more applications on respective virtual machines request to open, checking the newest version of the file, and managing a mapping relationship between the application and the data of the file; a file management unit for creating a new file as a new version of the file when the file open mode is a write mode; and a data management unit for loading the data of the new file into memory when the file open mode is a write mode, and providing the loaded data to the application, thereby sharing the file between the applications.

Abstract: Disclosed herein are an apparatus and method for providing a cloud service based on cloud service brokerage. The method includes receiving, by a cloud service broker, a first request for a cloud service from a cloud service client, wherein the cloud service broker is connected with the multiple cloud-computing systems; providing, by the cloud service broker, a cloud service brokerage based on cloud services of the cloud-computing systems, wherein the cloud service brokerage enables the cloud service complying with the first request to be provided to the cloud service client; and monitoring, by the cloud service broker, a service level of the cloud service during provision of the cloud service and controlling, by the cloud service broker, the cloud service such that the service level satisfies conditions of the first request.

Abstract: Disclosed herein are an apparatus and method for providing a cloud brokerage service based on multiple clouds. The method includes receiving, by a cloud service broker, a request for a cloud service from a cloud service client, the cloud service broker being connected with the multiple cloud-computing systems; generating, by the cloud service broker, the cloud service complying with the request based on one or more services registered in a service catalogue of the cloud service broker; newly registering, by the cloud service broker, the generated cloud service in the service catalogue; and providing, by the cloud service broker, the newly registered cloud service to the cloud service client.

Abstract: Disclosed herein are an apparatus and method for providing a cloud brokerage service based on multiple clouds. The method includes receiving, by a cloud service broker, a request for a cloud service from a cloud service client, the cloud service broker being connected with the multiple cloud-computing systems; providing, by the cloud service broker, a cloud service brokerage based on cloud services of the cloud-computing systems, the cloud service brokerage enabling the cloud service complying with the request to be provided to the cloud service client; transmitting, by the cloud service broker, a control request for the cloud service to one or more cloud-computing systems of the multiple cloud-computing systems; and controlling, by the cloud service broker, a status of the cloud service after the cloud service broker receives an acknowledgment for the control request from the one or more cloud-computing systems.

Abstract: Disclosed herein are apparatus and method for validating service control status. The apparatus for validating service control status includes a service control request unit for requesting control of a service from a computing system, a service control status checking period generation unit for generating a service control status checking period in order to check completion of the service control, and a service control status checking communication unit for performing service control status checking communication with the computing system based on the service control status checking period.