Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 21, Problem 21.3E
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Workflow for embedded software for a voice mail system:
The workflow for embedded software for a voice mail system is represented below:
A voicemail system is a centralized system used in businesses for sending, storing and retrieving audio messages.
The steps or processes in the embedded software for a voice mail system are:
- First the phone displays the number of messages.
- Then the while the phone rings, it counts the number of rings and if the number of rings is more than the stipulated limit, then answering mashing is activated which plays message...
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Consider a 2G - GSM mobile phone which has been turned off for a while. The user turns it on and tries to make a phone call to another mobile
phone in the same mobile operator's network which is also a 2G network. Write down ALL messaging between various components of the GSM
architecture and the mobile phone being turned on until the call is established (so do not consider the other side of the phone call) in a timeline
with appropriate messaging and names of the channels being used. When making a phone call assume that the user fails in the first 2 random-
access trials and succeeds on the 3rd random-access trial.
Consider a 2G - GSM mobile phone which has been turned off for a while. The user turns it on and tries to make a phone call to another mobile
phone in the same mobile operator's network which is also a 2G network. Write down ALL messaging between various components of the GSM
architecture and the mobile phone being turned on until the call is established (so do not consider the other side of the phone call) in a timeline
with appropriate messaging and names of the channels being used. When making a phone call assume that the user fails in the first 2 random-
access trials and succeeds on the 3rd random-access trial.
Telemedicine is the ability to provide medical assistance from a distance using telecommunication. For this example, imagine that a platoon of soldiers might be out in the battlefield. While a medic might be with them, he/she cannot constantly monitor each soldier’s vital signs, but if various sensors were sewn into soldier uniforms, vital statistics could be monitored from a distance by a doctor at headquarters. That doctor may be able to identify a medical problem for one of the soldiers and relay that information and instructions for care back to a medic in the area. The doctor at headquarters should be able to select a given soldier and see that soldier’s vital signs on a portable computer device (e.g., iPad). Perhaps the medic in the field might even have a video camera so that the doctor may be able to view a wound. Design the interface that the HQ doctor would see. Using the display design principles design an interface mockup using graphics, photos, and/or text to show what…
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Software Engineering (10th Edition)
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- In a robotic laboratory of one university, the lab members are testing mobile robots. Each robot has a radio transmitter that it uses to communicate with a base station, and they find that if the robots get too close to one another, then there are problems with interference among the transmitters. So a problem arises: how to plan the motion of the robots in such a way that each robot gets to its intended destination, but in the process the robots don’t come close enough together to cause interference problems. This problem could be modeled as: suppose that we have an undirected graph G=(V,E), representing the floor plan of a building, and there are two robots initially located at nodes a and b in the graph. The robot at node a wants to travel to node c along a path in G, and the robot at node b wants to travel to node d. This is accomplished by means of a schedule: at each time step, the schedule specifies that one of the robots moves across a single edge, from one node to a…arrow_forwardImagine that you are putting in place for your university's first time a new room reservation system that keeps track of which courses are being taught in which rooms. Imagine that each building is "owned" by a single college or department, and that only one person inside each college or department has the authority to allocate the rooms in that building. In your opinion, what conversion method would you employ?arrow_forwardComputer Science Draw a UML design for a Simulation of a DNS Server Using Java. DNS is a directory service that provides a mapping between the name of a host on the network and its numerical address and is required for the functioning of the internet.arrow_forward
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- Create a Python program that emulates a Banyan-Batcher network with 8 inputs and 8 outputs and then scale the output to a 16 x 16 Delta Network. Use a random generator with 8 (or 16) options to emulate the input table routing list with the assigned input port. Show that your simulation works for all inputs and all outputs. Explain how network routing fabric changes when you have 16 inputs and 16 outputs. Please make sure you are posting a Python script. The last answer was not effective.arrow_forwardElectronic mail systems differ in the manner in which multiple recipients are handled. In some systems, the originating mail handler makes all the necessary copies, and these are sent out independently. An alternative approach is to determine the route for each destination first. Then a single message is sent out on a common portion of the route, and copies are made only when the routes diverge, and this process is referred to as ‘mail bagging’. Leaving aside the considerations of security, discuss the relative advantages and disadvantages of two methods. Discuss the security requirements and implications of the two methods.arrow_forwardImplement a multi-layer perceptron from scratch in python. This would include the following1 Write activation functions.2 Forward propagate the input.3. Backward propagate the error.4 Train the network using stochastic gradient descent.5 Predict the output for a given test sample and compute the accuracy.arrow_forward
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