25. (5 points) Which of the following quality attributes applies to the requirement: 'The system must have a mean time to failure above 2000 hours (one answer possible)? O Time behaviour Fault tolerance Availability O Maturity O Recoverability 26. (5 points) Look at the figure from ISO/IEC 25010:2011. Which of the shown quality attributes applies to the following requirement for a medical system: 'The system needs to maintain an audit trail ? 27. (5 points) Look at the figure from ISO/IEC 25010:2011. Which of the shown quality at tributes applies to the following requirement for ap insurance information system: 'The system must keep record of which person approved a certain certificate of insurance'? 28. (5 points) Which quality attribute is defined by the statement: degree to which a product can perform its required functions efficiently while sharing a common enriromment and resources with other products, without detrimental egative/ impact on any other product'? Installability O Interoperability Co-existence O Adaptability 29. (5 points) Which quality attribute is defined by the statement: degree to which a system, product or component prevents unauthorized access to, or modification of, computer programs or data (one answer possible)? O Confidentiality O Authenticity Accountability O Integrity 30. (8 points) How do quality attribute scenarios evolve (i.e. change) in the course of architectural design? Relate your answer to the Twin Peaks model and the Hofmeister model. System/Software Product Quality Performance Compatibility efficiency Functional Suitability Maintain Usability Security Portability Reliability ability Functional Time-behaviour Co-existence Appropriateness recognisability Maturily Availability Confidentiality Integrity Non-repudiation Modularity Adaptability Installability Replaceability completeness Resource ublisationInteroperability Reusability Functional Learnability y Fault tolerance Analysability Modifiability cormectness Operability Recoverability Accountability Functional User error Authenticity Testability appropriateness protection User interface sesthetics Accessibility 25. (5 points) Which of the following quality attributes applies to the requirement: 'The system must have a mean time to failure above 2000 hours (one answer possible)? O Time behaviour Fault tolerance Availability O Maturity O Recoverability 26. (5 points) Look at the figure from ISO/IEC 25010:2011. Which of the shown quality attributes applies to the following requirement for a medical system: 'The system needs to maintain an audit trail ? 27. (5 points) Look at the figure from ISO/IEC 25010:2011. Which of the shown quality at tributes applies to the following requirement for ap insurance information system: 'The system must keep record of which person approved a certain certificate of insurance'? 28. (5 points) Which quality attribute is defined by the statement: degree to which a product can perform its required functions efficiently while sharing a common enriromment and resources with other products, without detrimental egative/ impact on any other product'? Installability O Interoperability Co-existence O Adaptability 29. (5 points) Which quality attribute is defined by the statement: degree to which a system, product or component prevents unauthorized access to, or modification of, computer programs or data (one answer possible)? O Confidentiality O Authenticity Accountability O Integrity 30. (8 points) How do quality attribute scenarios evolve (i.e. change) in the course of architectural design? Relate your answer to the Twin Peaks model and the Hofmeister model. System/Software Product Quality Performance Compatibility efficiency Functional Suitability Maintain Usability Security Portability Reliability ability Functional Time-behaviour Co-existence Appropriateness recognisability Maturily Availability Confidentiality Integrity Non-repudiation Modularity Adaptability Installability Replaceability completeness Resource ublisationInteroperability Reusability Functional Learnability y Fault tolerance Analysability Modifiability cormectness Operability Recoverability Accountability Functional User error Authenticity Testability appropriateness protection User interface sesthetics Accessibility