KR101467516B1 - Relay device for cloud services and mathod for repayment of thereof - Google Patents

Abstract

The cloud service apparatus collects the cloud service provision status provided by the cloud service apparatus to the user terminal, and when the cloud service apparatus fails to provide the service quality according to the service level agreement based on the collected information on the service provision status, To a cloud service relay device and a compensation method using the cloud service relay device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cloud service relay apparatus and a compensation method using the same,

The present invention relates to a compensation system and method of a cloud service system.

With the development of information and communication technology and the development of software technology, cloud computing has emerged which can use the resources of high performance information processing apparatus connected through the Internet as the resources of the user terminal. Cloud computing can provide a variety of services. For example, a cloud service provider may include a software as a service (hereinafter referred to as SaaS) that provides an application to a user, a platform as a service (hereinafter referred to as PaaS) that provides various platforms, (Hereinafter referred to as " IaaS "), which provides virtualization of resources such as the Internet, and the like, to provide various types of cloud computing services.

Recently, however, cloud services have been used in various IT fields, but it has become difficult to support complex and diverse cloud service environments by providing a single cloud service such as application SaaS, PaaS, and IaaS. As the cloud service market changes, service diversity, scalability, and quality of service (QoS) are further ensured through collaboration between service providers with different platforms.

On the other hand, cloud service brokers are spreading with the spread of cloud service. The cloud service broker connects cloud service providers with cloud service users and provides the convenience of cloud service users by identifying the needs of cloud service users and connecting them to the most appropriate cloud service providers. At this time, the cloud service broker can adjust the service level agreement (SLA) between the cloud service user and the cloud service provider to the benefit of the cloud service provider and the cloud service user.

Cloud service users using cloud services Pay as you go for pay-as-you-go models, and cloud service providers can use cloud services such as applications, storage, And provides the resources at a desired point of time. However, there is a problem that the cloud service provider must spend the same cost even when the service quality (QoS / QoE) satisfying the service level agreement (SLA) of each user can not be provided.

A problem to be solved by the present invention is to provide a billing service for compensating a certain fee when a service provider fails to provide a service quality (QoS / QoE) satisfying a service level agreement (SLA) of each user in a cloud service Lt; / RTI >

The cloud service relay apparatus according to an embodiment of the present invention includes a relay unit for relaying a service according to a service level agreement from a cloud service apparatus matched with a user terminal, a cloud service provided by the cloud service apparatus to the user terminal And an analysis unit for analyzing the service quality provided by the cloud service apparatus based on the information on the service provision status.

In this case, the cloud service relay apparatus may further include a compensation unit for performing compensation according to a predetermined compensation procedure when the analyzed service quality does not satisfy the service level agreement.

The cloud service relay apparatus may further include a matching unit for determining a matching cloud service apparatus to provide the service to the user terminal among the plurality of cloud service apparatuses based on the collaboration.

The cloud service relay apparatus may further include a contract generation unit that determines a service provision level between the user terminal and the cloud service apparatus and generates a service level agreement according to the determined level.

Meanwhile, the monitoring unit can collect a service provision status by transmitting a test packet to the cloud service apparatus.

Also, the analyzing unit can analyze one or more of the service quality, service failure time, normal process frequency, and service processing time based on the service provision status.

In addition, the service level agreement may include a policy for compensating if the cloud service device does not meet the service quality to be provided to the user terminal and the service quality.

The method may further include the steps of relaying the service according to the service level agreement from the cloud service device to which the user terminal has been matched, and providing the cloud service providing state provided by the cloud service device to the user terminal And analyzing the service quality provided by the cloud service apparatus matched based on the information on the service provision status.

In this case, the compensation method may further include determining a matching cloud service device to provide a service to the user terminal among the plurality of cloud service devices based on the collaboration.

The compensation method may further include determining a service provision level between the user terminal and the cloud service apparatus and generating a service level agreement according to the determined level.

Meanwhile, the step of analyzing the service quality may further include a step of performing compensation according to a predetermined compensation procedure if the service quality analysis result does not satisfy the service level agreement.

In addition, the collecting step may collect the service provision status by transmitting a test packet to the cloud service apparatus.

Also, the service quality may be at least one of the service amount, the failure time of the service device, the normal processing frequency, and the service processing time.

In addition, the service level agreement may include a policy for compensating if the cloud service device does not meet the service quality to be provided to the user terminal and the service quality.

According to the embodiments of the present invention described above, it is possible to provide a service relay apparatus that periodically monitors service provision status of a cloud service apparatus and analyzes a monitoring result to check a service quality of the cloud service apparatus, Can be managed.

In addition, when the analysis result of the service quality provided by the cloud service device does not satisfy the service level agreement, the cloud service relay device that provides compensation to the user terminal according to the predetermined compensation procedure is provided, It can be put in place efficiently.

In addition, cloud service accessibility of a user terminal can be improved by searching and matching a specific cloud service device capable of providing a service requested by a user terminal among a plurality of cloud service devices based on collaboration.

1 is a block diagram of a cloud service system having a cloud service relay apparatus according to an embodiment of the present invention.
2 is a flowchart illustrating a method of relaying a cloud service relay apparatus according to an exemplary embodiment of the present invention.
3 is a flowchart illustrating a compensation method according to an embodiment of the present invention.

The foregoing and further aspects of the invention will become apparent through the following examples. The terms used in this specification are terms selected in consideration of functions in the embodiments, and the meaning of the terms may vary depending on the user, the intention or custom of the operator, and the like. Therefore, the meaning of a term used in the following embodiments is defined according to the definition when it is specifically defined in this specification, and in the absence of a specific definition, it should be construed in a sense generally recognized by the ordinarily skilled artisans.

In addition, the configurations of the selectively described embodiments or selectively described embodiments of the present invention may be combined with each other in a single integrated configuration, if they are not obviously technically contradictory to the ordinary artisan unless otherwise stated. It should be understood.

1 is a block diagram of a cloud service system having a cloud service relay apparatus for explaining an embodiment of the present invention.

Referring to FIG. 1, a cloud service system includes a user terminal 100, a cloud service relay device 200, and a cloud service device 300.

The user terminal 100 requests the cloud service relay apparatus 200 to match the cloud service apparatus 300 and receives the cloud service from the cloud service apparatus 300 matched through the cloud service relay apparatus 200. [ Herein, the user terminal 100 may include a wired / wireless communication network as well as a desktop, a notebook, a mobile communication terminal, a smart phone, a portable media player (PMP), a personal digital assistant (PDA), and a tablet PC And the devices that can use the resources of the cloud service over the network. Although not shown in FIG. 1, the user terminal 100 may receive a cloud service through the cloud service relay device 200, and may receive the cloud service from the cloud service relay device 200 through a user interface And the like.

The cloud service relay apparatus 200 includes an interface unit 210, a matching unit 220, an agreement generation unit 230, a relay unit 240, a monitoring unit 250, an analysis unit 260, a compensation unit 270, .

The interface unit 210 connects the user terminal 100 or the cloud service device to the cloud service relay device 200. The interface unit 210 may include a user application programming interface (hereinafter referred to as User API) and a cloud application programming interface (Cloud API). At this time, the User API provides an environment in which the user terminal 100 and the cloud service relay device 200 can communicate with each other. The User API may be different for each type of user terminal 100 or operating system. The Cloud API provides an environment in which the cloud service device 300 and the cloud service relay device 200 can communicate with each other. The Cloud API may be different for each cloud service device 300. For example, the Cloud API of the cloud device # 1 300a and the Cloud API of the cloud device # 2 300b may be different.

The matching unit 220 determines and matches the cloud service apparatus 300 to provide the service to the user terminal 100 among the plurality of cloud service apparatuses 300 based on the collaboration. More specifically, the matching unit 220 searches the cloud service apparatus 300 capable of providing a service requested by the user terminal 100 among the plurality of cloud service apparatuses 300 based on the collaboration, (300) and the user terminal (100). In addition, when a plurality of cloud service devices 300 capable of providing a specific cloud service requested by the user terminal 100 are searched, the matching unit 220 searches the one cloud service device 300 among the plurality of searched cloud service devices 300, (300) to the user terminal (100). At this time, the matching unit 220 selects the cloud service device 300 according to various criteria such as a margin of a resource for providing a service, a physical location of the cloud service device 300, or the performance of the cloud service device 300 And can be matched with the user terminal 100. The matching unit 220 may receive a reference from the user terminal 100 to match one of the plurality of cloud service apparatuses 300 capable of providing a specific cloud service, The various environments of the portable terminal 100 can be extracted.

The agreement generation unit 230 determines the level of service provision between the user terminal 100 and the cloud service apparatus 300 determined by the matching unit 220 and determines a service level agreement (SLA) according to the determined level . Here, the service level agreement is a service level agreement such as a quality of service to be provided to the user terminal 100 by the cloud service device 300, a policy for compensation when the cloud service device 300 fails to provide the service according to the contracted service quality, It can include information that can be a variety of indicators of the level of cloud services. In addition, the detailed contents of the service level agreement may vary according to the cloud service requested by the user terminal 100. In addition, the agreement generating unit 230 may include various types of service level agreement templates, and may generate a service level agreement by selecting one of the provided service level agreement templates at the request of the user terminal 100 .

The relay unit 240 mediates the user terminal 100 to receive a service according to the service level agreement from the matched cloud service device 300. More specifically, the relay unit 240 accesses each cloud service apparatus 300 through the Cloud API, receives the cloud service, and provides the cloud service in a form in which the user terminal 100 can access the cloud service through the User API. In addition, the relay unit 240 may request the cloud service apparatus 300 for the cloud service according to the service level agreement. Meanwhile, the relay unit 240 may receive the cloud service from the plurality of cloud service devices 300 and provide the cloud service to one user terminal 100. Also, the relay unit 240 may receive the cloud service from one cloud service device 300 and provide the cloud service to the plurality of user terminals 100.

The monitoring unit 250 monitors the service provision status provided to the user terminal 100 by the cloud service device 300. At this time, the monitoring unit 250 may periodically monitor the service provision status. In addition, the monitoring unit 250 may monitor a service level by transmitting a packet for a service level test. For example, the monitoring unit 250 may transmit a test packet requesting a simple operation and check the time when the operation result is returned from the cloud service device 300. [

The analysis unit 260 analyzes the service quality provided by the cloud service apparatus 300 based on the information on the service provision status collected by the monitoring unit 250. More specifically, the monitoring unit 250 analyzes information on the service provision status collected by the monitoring unit 250, and calculates the service quality provided by the cloud service provision apparatus to the user terminal 100. For example, the analysis unit 260 may analyze the service amount provided by the cloud service device 300 to the user, the failure time of the cloud service device 300, the user of the cloud service device 300, It is possible to analyze the service quality of the cloud service providing apparatus such as the number of normal processing times of the service providing request and the service processing time of the cloud service apparatus 300 in the terminal 100.

The compensation unit 270 And determines whether the quality of service analyzed by the analysis unit 260 meets the service level agreement. If the quality of service analyzed by the analysis unit 260 does not satisfy the service level agreement, the user proceeds the compensation according to a predetermined compensation procedure. For example, when the service processing time is set to return a certain percentage of the usage fee when the service processing time exceeds 5 ms, the compensating unit 270, if the service providing apparatus is analyzed as having the service processing time of 20 ms, Returns a constant ratio.

The compensation unit 270 may calculate the degree of compensation (compensation amount) through Equation (1) and Table 1 as follows.

The variable in equation (1) sign Explanation R _total Total compensation amount R _u Amount of compensation for unused service R _v Amount of compensation for SLA violation P ₀ Basic fee U Service usage rate r _u Percentage of compensation for unused services r _v Percentage of compensation for SLA violation S _a Actual quality of service provided S _q Delivered service quality as described in the SLA

Referring to Equation (1) and Table 1, the compensation unit (270) can estimate the compensation amount to be paid to the user based on roughly two criteria. The first is the compensation amount ( R _u ) for the unused service, and the second is the compensation amount ( R _v ) for the service level agreement violation. Since the user is not provided with the whole service, the compensation amount for the unused service (remaining service) can be refunded. The amount of compensation for the unused service is calculated based on the value of R _{u in} Equation (1). In addition, since the service quality provided to the service already provided does not satisfy the service level agreement, the user can calculate the compensation amount for the service level agreement violation through the R _v value in consideration of the degree of not meeting the service level agreement Can be calculated. And the compensator (270) Considering both the amount of compensation (R _v) of the amount of compensation for unused services (R _u) and service-level agreement violates the total amount of compensation (reimbursement for unused services (R _u), second Reward the user based on the compensation amount ( R _total ) for breach of the service level agreement.

The device storage unit may store various information necessary for the operation of the relay apparatus. For example, the device storage unit may store an algorithm for matching the user terminal 100 with the cloud service device 300, an algorithm for generating a service level agreement, a generated service level agreement, a predetermined compensation standard, and the like.

The cloud service device 300 provides computer resources such as hardware and software through the Internet. In addition, the cloud service device 300 may have a platform to provide computer resources. For example, a cloud service device 300 that provides an application to a user, a cloud service device 300 that provides storage, and a cloud service device 300 that provides virtualization of computing resources may be used to provide cloud services, You can have a platform. In addition, it should be understood that the cloud service apparatus 300 having this type of platform can collaborate with another cloud service apparatus 300 having this type of platform in order to provide services to the user terminal 100.

2 is a flowchart illustrating a method of relaying a cloud service relay apparatus according to an exemplary embodiment of the present invention.

2 is a diagram for explaining a relaying method of a cloud relay apparatus according to an embodiment of the present invention. The cloud service relay device provides a cloud service requested by the user terminal by relaying a plurality of cloud service devices that collaboratively provide a cloud service. Here, it should be understood that the cloud service includes not only services such as Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS) do.

Referring to FIG. 2, the cloud service relay apparatus searches for a cloud service apparatus capable of providing a service requested by the user terminal (S101). At this time, the cloud service relay device may search for a cloud service device to provide a service to the user terminal based on the information about the stored cloud service device, collect cloud service information that can be provided from each cloud service device, You can also search for cloud service devices to provide services.

When the cloud service device capable of providing the cloud service is found, the cloud service relay device matches the user terminal and the cloud service device (S103). At this time, when two or more cloud service devices capable of providing services are detected, only one cloud service device may be selected and matched according to predetermined conditions. Here, the predetermined condition may be a user's input through the user terminal as well as the margin of the resource for providing the service, the physical location of the cloud service device, or the performance of the cloud service device.

If the user terminal and the cloud service device are matched, the cloud service relay device determines the service quality to be provided by the cloud service device and generates a service level service level agreement according to the determined service quality (S105). At this time, the service level agreement may be indicative of the level of the cloud service, such as the quality of the service to be provided to the user terminal by the cloud service device and the policy for compensation when the cloud service device fails to provide the service according to the contracted service quality You can include multiple pieces of information.

If there is a service provision request from the user terminal, the cloud service relay apparatus relays the matching cloud service apparatus to provide the service to the user terminal according to the service level agreement (S107). In other words, each cloud service device having a platform of this kind can be accessed to relay the user terminal to use the cloud service.

Meanwhile, the cloud service relay device performs compensation when the quality of service of the cloud service device does not satisfy the agreement (S109). More specifically, the cloud service relay device monitors the service quality of the cloud service device when the cloud service device provides the service to the user terminal, and when the service quality of the cloud service device does not satisfy the service level agreement, And performs compensation accordingly.

3 is a flowchart for explaining a compensation method according to an embodiment of the present invention,

FIG. 3 is a view for explaining in detail the compensation method according to an embodiment of the present invention, in more detail, the steps S107 and S109 of FIG. 2. FIG.

Referring to FIG. 3, if the user terminal has a service provision request, the cloud service apparatus relays the service provision agreement to the user terminal so that the service can be provided (S201). More specifically, the cloud service relay device can enable data communication between the two devices based on the API for the user terminal and the cloud service device.

The cloud service relay device monitors the service status of the cloud service device (S203). For example, the cloud service relay device can monitor the amount of service that the cloud service device provides to the user. In addition, the cloud service repeater may periodically check whether the cloud service apparatus is provided with a service, or may periodically send test packets to the cloud service apparatus to test the processing speed of the cloud service.

Then, it is determined whether the analyzed quality of service satisfies the service quality according to the service level agreement (S207). If the service quality according to the service level agreement is not satisfied in step S207, the service quality is compensated according to a predetermined compensation standard (S209).

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: user terminal
200: Cloud service relay device
210:
220:
230: Agreement Form Generator
240 relay unit
250: Monitoring section
260: Analytical Department
270:
300: Cloud service device

Claims (14)

A relay unit that relays the user terminal to receive a service according to a service level agreement (SLA) from a matching cloud service device;
A monitoring unit for collecting a cloud service provision state provided by the cloud service apparatus to the user terminal;
An analysis unit for analyzing a service quality provided by the cloud service apparatus based on information on the service provision status; And
A compensation unit for performing compensation according to a predetermined compensation procedure if the analyzed service quality does not satisfy the service level agreement; / RTI >
The compensation

Lt; / RTI >
Wherein R _u is a compensation amount for an unused service, R _y is a compensation amount for violating the service level agreement, P _o is a basic fee, U is a service use ratio, r _u is a compensation amount for unused service , R _y is _a ratio of compensation amount to the service level agreement violation, Sa is an actual service quality, S _q is a service quality described in the service level agreement, and R _total is a total compensation amount. Service relay device. delete The method according to claim 1,
Further comprising a matching unit for determining the matching cloud service apparatus to provide the service to the user terminal among the plurality of cloud service apparatuses based on the collaboration. The method of claim 3,
Further comprising a contract generation unit for determining a service provision level between the user terminal and the cloud service apparatus and generating a service level agreement according to the determined level. The method according to claim 1,
Wherein the monitoring unit collects the service provision status by transmitting a test packet to the cloud service apparatus. The method according to claim 1,
Wherein the analyzing unit analyzes at least one of a service amount, a failure time of the service device, a normal process count, and a service process time based on the service provision status. The method according to claim 1,
Wherein the service level agreement includes a service quality to be provided to the user terminal by the cloud service device and a policy for compensation when the service quality is not satisfied. Relaying the user terminal to receive a service according to the service level agreement from the matched cloud service device;
Collecting a cloud service provision status that the cloud service apparatus provides to the user terminal;
Analyzing a service quality provided by the matched cloud service apparatus based on the service providing state information; And
Analyzing the service quality comprises: if the service quality analysis result does not satisfy the service level agreement, proceeding the compensation according to a predetermined compensation procedure; / RTI >
The compensation

Lt; / RTI >
Wherein R _u is a compensation amount for an unused service, R _y is a compensation amount for violating the service level agreement, P _o is a basic fee, U is a service use ratio, r _u is a compensation amount for unused service , R _y is _a ratio of compensation amount to the service level agreement violation, Sa is an actual service quality, S _q is a service quality described in the service level agreement, and R _total is a total compensation amount. A method of compensating a service relay apparatus. delete 9. The method of claim 8,
Further comprising the step of determining the matching cloud service apparatus to provide the service to the user terminal among the plurality of cloud service apparatuses based on the collaboration. 11. The method of claim 10,
Determining a service provision level between the user terminal and the cloud service apparatus, and generating a service level agreement according to the determined level. 9. The method of claim 8,
Wherein the collecting step collects the service provision status by transmitting a test packet to the cloud service apparatus. 9. The method of claim 8,
Wherein the service quality is at least one of a service amount, a failure time of the service device, a normal process count, and a service process time. 9. The method of claim 8,
Wherein the service level agreement includes a service quality to be provided to the user terminal by the cloud service device and a policy for compensation when the service quality is not satisfied.

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