McCall factor model

The probability that the “Super-lab” software system will be found in a state of failure during peak hours (9 am to 4 pm) is required to be below 0.5%.

• Efficiency
• Reliability
• Correctness
• Usability

The “Super-lab” software system will enable direct transfer of laboratory results to those files of hospitalized patients managed by the “MD-File” software package.

• Flexibility
• Testability
• Interoperability
• Portability

The “Super-lab” software system will include a module that prepares a detailed report of the patient’s laboratory test results during his or her current hospitalization. (This report will serve as an appendix to the family physician’s file.) The time required to obtain this printed report will be less than 60 seconds; the level of accuracy and completeness will be at least 99%.

• Correctness
• Testability
• Maintainability
• Reliability

The “Super-lab” software to be developed for hospital laboratory use may be adapted later for private laboratory use.

• Correctness
• Integrity
• Interoperability
• Flexibility

The training of a laboratory technician, requiring no more than three days, will enable the technician to reach level C of “Super-lab” software usage. This means that he or she will be able to manage reception of 20 patients per hour.

• Reliability
• Usability
• Correctness
• Reusability

The “Super-lab” software system will record a detailed users’ log. In addition, the system will report attempts by unauthorized persons to obtain medical information from the laboratory test results database. The report will include the following information: network identification of the applying terminal, system code of the employee who requested that information, day and time of attempt, and type of attempt.

• Integrity & Testability
• Testability & Reliability
• Integrity & Interoperability
• Testability & Correctness

The “Super-lab” subsystem that deals with billing patients for their tests may eventually be used as a subsystem in the “Physiotherapy Center” software package.

• Flexibility
• Interoperability
• Usability
• Reusability

The “Super-lab” software system will process all the monthly reports for the hospital departments’ management, the hospital management, and the hospital controller according to Appendix D of the development contract.

• Efficiency
• Correctness
• Maintainability
  
• Usability

The software system should be able to serve 12 workstations and eight automatic testing machines with a single model AS20 server and a CS25 communication server that will be able to serve 25 communication lines. This hardware system should conform to all availability requirements as listed in Appendix C.

• Reliability
• Efficiency
• Correctness
• Flexibility

The “Super-lab” software package developed for the Linux operating system should be compatible for applications in a Windows NT environment.

• Interoperability
• Maintainability
• Portability
• Flexibility