A method for analysis of problems is described, comprising receiving values for a plurality of input parameters specifying a problem, analyzing the values of the plurality of input parameters with a fuzzy expert system thereby calculating a fuzzy result, including a value of a linguistic variable and a crisp value, and determining a priority of the problem, wherein the priority is determined based on the value of the linguistic variable and the crisp value of the fuzzy result. Furthermore, a corresponding problem analysis system is provided.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A method for analysis of problems, comprising: receiving values for a plurality of input parameters specifying a problem; analyzing the values of the plurality of input parameters with a fuzzy expert system thereby calculating a fuzzy result, including a value of a linguistic variable and a crisp value; and determining a priority of the problem, wherein the priority is determined based on the value of the linguistic variable and the crisp value of the fuzzy result. 2. The method of claim 1, further comprising selecting the fuzzy expert system from a group of fuzzy expert systems based on a type and the number of the plurality of input parameters. 3. The method of claim 1, wherein the analyzing of the values includes mapping the plurality of input parameters onto a plurality of fuzzy sets and applying a set of fuzzy rules, wherein the fuzzy rules are defined by the fuzzy expert system. 4. The method of claim 3, wherein the fuzzy rules are applied according to a hierarchy specified by a fuzzy inference engine of the fuzzy expert system. 5. The method of claim 3, wherein the mapping of the plurality of input parameters includes, for each input parameter, defining a plurality of membership functions based on a type of the input parameter. 6. The method of claim 5, wherein the plurality of membership functions includes at least one of a triangular, a trapezoidal, and a sinusoidal membership function. 7. The method of claim 1, wherein the input parameters are defined as linguistic variables. 8. The method of claim 1, wherein the determining of the priority includes using the value of the linguistic variable to classify the problem into one of a plurality of categories and using the crisp value to grade the problem within the category. 9. The method of claim 1, wherein the crisp value is computed based on a defuzzification of at least one fuzzy set and corresponding membership degrees. 10. The method of claret wherein the fuzzy result is based on at least one fuzzy set, including at least one of a triangular, a trapezoidal, and a sinusoidal membership function. 11. The method of claim 1, wherein at least some of the input parameters are related to a description of a deviation defining the problem, the input parameters including at least one of a users impact and an urgency of the problem. 12. The method of claim 1, wherein the analyzing of the values further includes determining similar problems based on at least one of the input parameters. 13. The method of claim 1, further comprising applying a plurality of models with different grades of fuzziness to the input parameters, for each model, analyzing a set of test values for the plurality of input parameters with the fuzzy expert system thereby calculating a test result, rating the test results for each model, and selecting one of the plurality of models based on the rating. 14. A computer-readable medium having instructions stored thereon, wherein said instructions, in response to execution by a computing device, cause said computing device to: maintain a plurality of descriptions of problems, ach description comprising a plurality of input words specifying the problem; for each maintained description of a problem, map the plurality of input words onto a plurality of fuzzy sets. and calculate a fuzzy result by applying a set of fuzzy rules to the plurality of fuzzy sets, wherein the fuzzy result includes a linguistic value and a defuzzified numerical value indicative of a priority of the problem; and prioritize the problems based ort the linguistic values and the numerical values of the respective fuzzy results. 15. The medium of claim 14, wherein said computing device is further to analyze a type and the number of input words, and select a fuzzy expert system from a group of fuzzy expert systems based on the analysis, wherein the fuzzy expert system defines the set of fuzzy rules. 16. The medium of claim 14, wherein in order to prioritize the problems said computing device is to classify the problems according to the linguistic values into a set of categories and grade the problems of each category according to the respective numerical values. 17. The medium of claim 14, wherein said computing device is further to receive a description of a further problem, determine a priority of the further problem, and prioritize the further problem by comparing the determined priority with priorities of the maintained problems. 18. A problem analysis system, comprising: an application layer including an engine to maintain problem descriptions based on priorities of the respective problems, each description including a plurality of values for input parameters specifying the respective problem; a communication layer; and a fuzzy layer coupled to the application layer via the communication layer, said fuzzy layer including a fuzzy expert system and a communication interface to receive a plurality of values of a problem description from the application layer, to analyze the plurality of values with the fuzzy expert system and to transmit a result from the fuzzy expert system indicative of a priority of the problem back to the application layer, wherein the result includes a value of a linguistic variable and a crisp value and the priority is determined based on the value of the linguistic variable and the crisp value of the fuzzy result. 19. The system of claim 18, wherein the application layer further includes an input module to receive a problem description from a user of the system, and to provide the problem description to the engine. 20. The system of claim 18, wherein the problems are related to an IT infrastructure including at least one of IT hardware, IT software, and combinations thereof.