Read the description below. Describe the three most important quality attributes for the scenario described. Identify at least two relevant tactics for each of the quality attributes and justify them (provide reasoning for their relevance). A company wants to develop a system for sea buoys to support navigation at sea. Many free-floating buoys exist that provide navigation and weather data to air and ship traffic at sea. The buoys use a variety of sensors to collect air and water temperature, wind speed, and location data. There may be different numbers of temperature and wind sensors in each buoy. In the future, there is a possibility to add support for other types of sensors. Each buoy also includes a radio transmitter and a radio receiver so that it can broadcast weather and location information, and an SOS message, and it can receive requests from nearby passing vessels. Some buoys are equipped with a red light, which may be activated by a passing vessel during sea-search operations. If a sailor is able to reach the buoy, he or she may flip a switch on the side of the buoy to initiate an SOS broadcast. Requirements for software for each buoy are stated below: It must maintain current information about temperature, wind, and location; take wind speed readings every 30 seconds, temperature readings every 20 seconds, and location every 60 seconds. It must broadcast current wind, temperature, and location information every 60 seconds. It must broadcast wind, temperature, and location information from the past 24 hours in response to requests from passing vessels; this takes priority over the periodic broadcast It must have activation or deactivation of the red light based upon a request from a passing vessel. It must continuously broadcast an SOS signal after a sailor engages the emergency switch; this signal takes priority over all other broadcasts and continues until reset by a passing vessel.

Fundamentals of Information Systems

9th Edition

ISBN:9781337097536

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter1: An Introduction To Information Systems In Organizations

Section: Chapter Questions

Problem 2.2CS

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Read the description below. Describe the three most important quality attributes for the scenario described. Identify at least two relevant tactics for each of the quality attributes and justify them (provide reasoning for their relevance).

A company wants to develop a system for sea buoys to support navigation at sea. Many free-floating buoys exist that provide navigation and weather data to air and ship traffic at sea. The buoys use a variety of sensors to collect air and water temperature, wind speed, and location data. There may be different numbers of temperature and wind sensors in each buoy. In the future, there is a possibility to add support for other types of sensors. Each buoy also includes a radio transmitter and a radio receiver so that it can broadcast weather and location information, and an SOS message, and it can receive requests from nearby passing vessels. Some buoys are equipped with a red light, which may be activated by a passing vessel during sea-search operations. If a sailor is able to reach the buoy, he or she may flip a switch on the side of the buoy to initiate an SOS broadcast. Requirements for software for each buoy are stated below:

It must maintain current information about temperature, wind, and location; take wind speed readings every 30 seconds, temperature readings every 20 seconds, and location every 60 seconds.
It must broadcast current wind, temperature, and location information every 60 seconds.
It must broadcast wind, temperature, and location information from the past 24 hours in response to requests from passing vessels; this takes priority over the periodic broadcast
It must have activation or deactivation of the red light based upon a request from a passing vessel.
It must continuously broadcast an SOS signal after a sailor engages the emergency switch; this signal takes priority over all other broadcasts and continues until reset by a passing vessel.

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