HW13: Chapter 8

(8.7):  The ReportTesting system sends a report request to the WeatherStation every hour. The WeatherStation acknowledges the request and sends returns the report to The ReportTesting system. The ReportTesting system sends the report to the DataAnalyzer. The DataAnalyzer separates ground and air data into a ground report and air report. The ground report contains the maximum, minimum and average ground temperatures along with a time-stamp. The air report contains the maximum, minimum and average are temperatures along with a time-stamp. The Comparator sends a report requests to SatComms. SatComms sends the report the to the Comparator (the Comparator has a SatComms have identical reports). The DataAnalyzer sends the ground report to GroundAnalyzer and sends the air report to the AirAnalyzer. The DataAnalyzer, AirAnalyzer,and Comparator reports are sent to the BoolReport. The BoolReport compares the maximum, minimum and average ground temperatures in ground report to the Comparator report. The BoolReport report is compares the time-stamp and maximum, minimum and average air temperatures in the air report to the time-stamp and maximum, minimum and average air temperatures in ground report Comparator report. If any time-stamp or temperature from the ground and air report do not match the corresponding values in the Comparator report , the BoolReports sends a Fail message to the ReportTesting system, else it sends True.

(8.10): Testing a system until the budget is exceeded is a poor practice. This approach cannot promise a reliable system because there may not be a dedicated plan to ensure that requirements of the system are adequately tested. This is not an ethical approach to designing a system because it shorts the customer. Upon delivery the system, it still may have unidentified security vulnerabilities as well as missing requirements that cause the system to fail in a non-graceful manner.