AVAILABILITY MODEL GENERATION DEVICE

• US 20130275113A1
• Filed: 06/10/2011
• Published: 10/17/2013
• Est. Priority Date: 10/29/2010
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Tadano, Kumiko
• Application Number:
  US13/882,367
• Publication Number:
  US 20130275113A1
• Time in Patent Office: Days
• US Class Current: 703/21
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30

Abstract

The availability model generation device 100 includes an operation procedure information acceptance section 101 which accepts operation procedure information representing an operation procedure including a plurality of manipulations for operating an information processing system and also representing the sequence that the respective manipulations are executed, and an availability model generation section 102 which generates, based on the operation procedure information, an availability model for estimating the availability of the information processing system in a case where the manipulations are executed in accordance with the operation procedure represented by the accepted operation procedure information.

Claims

1. An availability model generation device comprising:

an operation procedure information acceptance unit that accepts operation procedure information representing an operation procedure including a plurality of manipulations for operating an information processing system and also representing a content of each of the plurality of the manipulations and a sequence that the respective manipulations are executed; and

an availability model generation unit that generates, based on the operation procedure information, an availability model for estimating availability of the information processing system in a case where the plurality of the manipulations are executed in accordance with the operation procedure represented by the accepted operation procedure information.

2. The availability model generation device, according to claim 1, wherein

the availability model is a model representing, with respect to each of the plurality of the manipulations represented by the accepted operation procedure information, a relationship between a parameter group including parameters representing a change in a state of the information processing system along with execution of the manipulation, and the availability of the information processing system, and

the availability model generation device further comprises

an availability estimation unit that estimates the availability with respect to each of the parameter groups which are different from each other, based on the parameter group and the generated availability model, and

a bottleneck manipulation specifying unit that specifies, from among the plurality of the manipulations, a bottleneck manipulation which lowers the availability most, based on a relationship between the estimated availability and the parameter group based on which the availability is estimated.

3. The availability model generation device, according to claim 2, further comprising

a bottleneck manipulation information output unit that outputs bottleneck manipulation information representing the specified bottleneck manipulation.

4. The availability model generation device, according to claim 2, further comprising

a parameter measurement unit that measures the parameter during operation of the information processing system, wherein

the availability estimation unit is adapted to estimate the availability based on the measured parameter.

5. The availability model generation device, according to claim 1, wherein

the parameter is an average execution time which is an average value of a period of time required to execute the manipulation, a success probability which is a probability that the manipulation succeeds, or an average transition time which is an average value of a period of time required for transition of a state of the information processing system to the next state if execution of the manipulation fails.

6. The availability model generation device, according to claim 1, wherein

the operation procedure information is information representing an activity diagram.

7. The availability model generation device, according to claim 1, wherein

the availability model is a model using probability distribution.

11. The availability model generation device, according to claim 3, further comprising

a parameter measurement unit that measures the parameter during operation of the information processing system, wherein

the availability estimation unit is adapted to estimate the availability based on the measured parameter.

12. The availability model generation device, according to claim 2, wherein

the parameter is an average execution time which is an average value of a period of time required to execute the manipulation, a success probability which is a probability that the manipulation succeeds, or an average transition time which is an average value of a period of time required for transition of a state of the information processing system to the next state if execution of the manipulation fails.

13. The availability model generation device, according to claim 3, wherein

the parameter is an average execution time which is an average value of a period of time required to execute the manipulation, a success probability which is a probability that the manipulation succeeds, or an average transition time which is an average value of a period of time required for transition of a state of the information processing system to the next state if execution of the manipulation fails.

14. The availability model generation device, according to claim 4, wherein

the parameter is an average execution time which is an average value of a period of time required to execute the manipulation, a success probability which is a probability that the manipulation succeeds, or an average transition time which is an average value of a period of time required for transition of a state of the information processing system to the next state if execution of the manipulation fails.

15. The availability model generation device, according to claim 2, wherein

the operation procedure information is information representing an activity diagram.

16. The availability model generation device, according to claim 3, wherein

the operation procedure information is information representing an activity diagram.

17. The availability model generation device, according to claim 4, wherein

the operation procedure information is information representing an activity diagram.

18. The availability model generation device, according to claim 5, wherein

the operation procedure information is information representing an activity diagram.

19. The availability model generation device, according to claim 2, wherein

the availability model is a model using probability distribution.

20. The availability model generation device, according to claim 3, wherein

the availability model is a model using probability distribution.

8. An availability model generation method comprising:

accepting operation procedure information representing an operation procedure including a plurality of manipulations for operating an information processing system and also representing a content of each of the plurality of the manipulations and a sequence that the respective manipulations are executed; and

generating, based on the operation procedure information, an availability model for estimating availability of the information processing system in a case where the plurality of the manipulations are executed in accordance with the operation procedure represented by the accepted operation procedure information.

9. The availability model generation method, according to claim 8, wherein

the availability model is a model representing, with respect to each of the plurality of the manipulations represented by the accepted operation procedure information, a relationship between a parameter group including parameters representing a change in a state of the information processing system along with execution of the manipulation, and the availability of the information processing system, and

the availability model generation method further comprises

estimating the availability with respect to each of the parameter groups which are different from each other, based on the parameter group and the generated availability model, and

specifying, from among the plurality of the manipulations, a bottleneck manipulation which lowers the availability most, based on a relationship between the estimated availability and the parameter group based on which the availability is estimated.

10. A non-transitory computer-readable medium storing an availability model generation program comprising instructions for causing an information processing device to realize:

an operation procedure information acceptance unit that accepts operation procedure information representing an operation procedure including a plurality of manipulations for operating an information processing system and also representing a content of each of the plurality of the manipulations and a sequence that the respective manipulations are executed; and

an availability model generation unit that generates, based on the operation procedure information, an availability model for estimating availability of the information processing system in a case where the plurality of the manipulations are executed in accordance with the operation procedure represented by the accepted operation procedure information.