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systems analysis and design

Questions and Answers of Systems Analysis And Design

Plot the waveform v(t)= [-17e-100]u(t)V.
Express the following signals in terms of singularity functions 01
Figure 5–13(a) shows an ideal electronic switch whose input is a ramp 2rðtÞ, where the scale factor K = 2 carries the units of V=s. Find the switch output υOðtÞ when the gate function in
Write an expression using ramp functions to describe the waveform shown in Figure 5–12. v(t) (V) 2 -1 1 3 FIGURE 5-12 (S) 1-
Derive an expression for the waveform for the integral of the pulse shown in Figure 5–11(a). v(1) (V) 0 3 2 . 4 1 (s) 5
Figure 5–9 purports to be an alternative description of an impulse function as ϵ!0. Prove or disprove the claim. 1/e v(t) -E 0 FIGURE 5-9 3
Calculate and sketch the derivative of the pulse in Figure 5–8(a). v(r) (V) 0 2 3 4 (a) T 5 -t(s)
Write an expression using unit step functions for the waveform in Figure 5–6. v(t) (V) 10 -2 2 4 -5 FIGURE 5-6 t(s)
Express the waveform in Figure 5–5(a) in terms of step functions. v(f) (V) 3 0 01 2 3 4 5 -3 (a) t(s)
Exercise 3.28 In we stated that the sensitivity of a perturbed plant SI GK is related to that of the nominal plant S I GK by S SI EOTwhere EO G GG This exercise
Exercise 3.27 Show that the set of all stabilizing controllers in can be written as K FlJQ and nd J
Exercise 3.26 State space descriptions may be represented as LFTs To demonstrate this nd H for FlH s CsI AB D
Exercise 3.25 Write K as an LFT of T GKI GK ie nd J such that K FlJ T
Exercise 3.24 Write T GKI GK as an LFT of K ie nd P such that T FlPK
Exercise 3.23 Find two matrices A and B such that A BA Bwhich proves that the spectral radius does not satisfy the triangle inequality and is thus not a norm
Exercise 3.22 Consider a lower triangular mm matrix A with aii aij for all i j and aij for all i ja What is detA b What are the eigenvalues of A c Show that the smallest singular value is
Exercise 3.21 Do the singular values bound the magnitude of the elements of a matrix That is is A larger or equal to the largest element in magnitude and is A smaller or equal to the
Exercise 3.20 Find example matrices to illustrate that the above bounds are also tight when A is a square mm matrix with m
Exercise 3.19 Compute kAki A kAki kAki kAkF kAkmax and kAksum for the following matrices and tabulate your resultsA I A A A A Show using the above matrices that the
Exercise 3.18 Assume that A is non singular i Formulate a condition in terms of singular value of E for the matrix AE to remain non singular Apply this to A in and ii nd an E of
Exercise 3.17 What is the relationship between the RGA matrix and uncertainty in the individual elements Illustrate this for perturbations in the element of the matrix A
Exercise 3.16 By kMk one can mean either a spatial or temporal norm Explain the dierence between the two and illustrate by computing the appropriate innity norm for M Mss s s
Exercise 3.15 Consider the performance specication kwP Sk Suggest a rational transfer function weight wP s and sketch it as a function of frequency and suggest a rational transfer function wP
Exercise 3.14 Show that N in can be represented in block diagram form if Wp wpI where wp is a scalar.
Exercise 3.13 Mixed sensitivity Use the above procedure to derive the generalized plant P for the stacked N in
Exercise 3.12 State estimator In the Kalman lter problem the objective is to minimize x bx whereas in Example the objective was to minimize y byShow how the Kalman Filter problem can be
Exercise 3.11 Cascade implementation Consider Example The local feedback based on y is often implemented in a cascade manner see also Figure In this case the output from K enters into K
Exercise 3.10 Consider the two degrees of freedom feedback conguration in Figure b i Find P when w d rn z y r u v r ym ii Let z Nw and derive N in two dierent ways
Exercise 3.9 Consider again the distillation process with the decoupling controller but also include output gain uncertainty b i That is let the perturbed loop transfer function be Ls
Exercise 3.8 Design a SVD controller K WKsW for the distillation process in ie select W V and W UT where U and V are given in Select Ks in the form Ks css css and try the
Exercise 3.7 Consider again the distillation process Gs in The response using the inverse based controller Kinv in was found to be sensitive to input gain errors We want to see if
Exercise 3.6 For a system with m inputs and output what is the interpretation of the singular values and the associated input directions V What is U in this case Answer v vm yield the
Exercise 3.5 Compute the spectral radius and the ve matrix norms mentioned above for the matrices in and
Exercise 3.4 In Figure what transfer function does SI represent Evaluate the transfer functions from d and d to r yThe following relationships are usefulI L LI L S T I
Exercise 3.3 Use the MIMO rule to show that corresponds to the negative feedback system in Figure
Exercise 3.2 Use the MIMO rule to derive the transfer functions from u to y and from u to z in Figure b Use the push through rule to rewrite the two transfer functions
Exercise 3.1 Derive the cascade and feedback rulesThe cascade and feedback rules can be combined into the following MIMO rule for evaluating closedloop transfer functions from block diagrams
Why is Internet/Intranet processing so important to today’s Web development?
What is the use of client/server with respect to software development?
Explain why object orientation is beneficial to software developers.
How is productivity obtained in analysis? What tool is best used?
Discuss the importance of using the appropriate analysis tool when interviewing users and building specifications.
The user interface represents the first critical step to obtaining the proper needs of users. Provide five examples of different user positions that might be critical to interview.
Explain what is meant by “tiers of software development.”
What is a Gantt chart? How are Gantt charts used and why is it important that they be realistic estimates of how the project will proceed?
Professionals often refer to software projects as being very complex.Explain why this complexity might be overstated and misunderstood.
Develop a migration plan (including both conversion and change management) for the independent travel agencies who use the airline reservation system described in exercise J.
Suppose you are the project leader for the development of a new airline reservation system that will be used by the airline’s in-house reservation agents. The system will replace the current
Suppose you are the project leader for the development of a new Web-based course registration system for your university that replaces an old system in which students had to go to the coliseum at
Suppose you are leading the installation of a new DSS to help admissions officers manage the admissions process at your university. Develop a change management plan (i.e., organizational aspects
Prepare a training plan that includes both what you would train and how the training would be delivered for the system in exercise
Prepare a plan to motivate the adoption of the system in exercise
Suppose you are the project manager for a new library system for your university. The system will improve the way in which students, faculty, and staff can search for books by enabling them to search
Suppose you are installing a new room reservation system for your university that tracks which courses are assigned to which rooms. Assume that all the rooms in each building are “owned”by one
Suppose you are installing a new accounting package in your small business. What conversion strategy would you use? Develop a conversion plan (i.e., technical aspects only).
Compare and contrast the online help at two different Web sites that enable you to perform some function(e.g., make travel reservations, order books).
Create a use-case test plan, including the specific class plans and invariant tests, for a use case from the library exercises in the previous chapters.
Create an invariant test specification for the class you chose for the library in exercise G in Chapter 9.
Create a use-case test plan, including the specific class plans and invariant tests, for a use case from the Ofthe-Month Club (OTMC) exercises in the previous chapters.
Create an invariant test specification for the class you chose for the Of-the-Month Club (OTMC) in exercise E in Chapter 9.
Create a use-case test plan, including the specific class plans and invariant tests, for a use case from the Picnics R Us exercises in the previous chapters.
Create an invariant test specification for the class you chose for Picnics R Us in exercise C in Chapter 9.
Create a use-case test plan, including the specific class plans and invariant tests for a use case from the health club exercises in previous chapters.
Create an invariant test specification for the class you chose for the health club in exercise A in Chapter 9.
Different views of plagiarism and collaborative learning were described as examples of differences among different cultures today. Using the Web, identify other differences that may impact the
Based on the library exercises in Chapter 5 (T, U), Chapter 6 (R), Chapter 7 (L), Chapter 8 (M, N), Chapter 9 (G), Chapter 10 (L), and Chapter 11 (J, K), suggest a physical architecture design and
Based on the Of-the-Month Club exercises in Chapter 5 (R, S), Chapter 6 (Q), Chapter 7 (K), Chapter 8 (K, L), Chapter 9 (E), Chapter 10 (K), and Chapter 11 (H, I), suggest a physical architecture
Based on the Picnics R Us exercises in Chapter 5 (P, Q), Chapter 6 (P), Chapter 7 (J), Chapter 8 (I, J), and Chapter 9 (C), Chapter 10 (J), and Chapter 11 (F, G), suggest a physical architecture
Based on the health club exercises in Chapter 5 (N, O), Chapter 6 (O), Chapter 7 (E, F), Chapter 8 (G, H), Chapter 9 (A), Chapter 10 (I), and Chapter 11 (D, E), suggest a physical architecture design
Suppose that the admissions office in your university has a Web-based application so that students can apply for admission online. Recently, there has been a push to admit more international students
An energy company with headquarters in Dallas, Texas, is thinking about developing a system to track the efficiency of its oil refineries in North America.Each week, the ten refineries—as far as
Locate a consumer products company on the Web and read its company description (so that you get a good understanding of the geographic locations of the company).Pretend that the company is about to
Think about the system that your university currently uses for career services, and suppose that you are in charge of replacing the system with a new one.Describe how you would decide on the
You have been selected to determine whether your firm should invest in CORBA- or .net-based technologies to support distributed objects computing.Write a short memo that describes to the steering
L. Bean. Write a short memo that describes to the project manager your reason for selecting an n-tiered architecture over a two-tiered architecture. In the memo, give some idea as to what different
You have been selected to find the best client–server computing architecture for a Web-based order entry system that is being developed for
Using the Web, locate examples of a mainframe component, a minicomputer component, and a microcomputer component. Compare the components in terms of price, speed, available memory, and disk storage.
Using the Web (or past issues of computer industry magazines such as Computerworld), locate a system that runs in a client–server environment. Based on your reading, why do you think the company
Using the Web (or past issues of computer industry magazines such as Computerworld), locate a system that runs in a server-based environment. Based on your reading, why do you think the company chose
In Your Turn 11-7, you probably used menus. Design the navigation system again using a command language.
Draw a WND for Your Turn 11-7 using the opposite grammar order from your original design (if you didn’t do it, draw two WNDs, one in each grammar order).Which is best? Why?
Ask Jeeves (http://www.ask.com) is an Internet search engine that uses natural language. Experiment with it and compare it to search engines that use key words.
Based on your solution to exercise J:1. Design an interface template.2. Create Windows Layout Diagrams for the interface design.3. Develop an HTML prototype.4. Develop a real use case.
Based on the use-case diagram for the university library borrowing system in exercise U in Chapter 5:1. Develop two use scenarios.2. Develop the interface standards (omitting the interface
Based on your solution to exercise H:1. Design an interface template.2. Create Windows Layout Diagrams for the interface design.3. Develop an HTML prototype.4. Develop a real use case.
Based on the use-case diagram for the Of-the-Month-Club in exercise S in Chapter 5:1. Develop two use scenarios.2. Develop the interface standards (omitting the interface template).3. Draw a WND.4.
Based on your solution to exercise F:1. Design an interface template.2. Create Windows Layout Diagrams for the interface design.3. Develop an HTML prototype.4. Develop a real use case.
Based on the use-case diagram for Picnics R Us in exercise Q in Chapter 5:1. Develop two use scenarios.2. Develop the interface standards (omitting the interface template).3. Draw a WND.4. Design a
Based on your solution to exercise D:1. Design an interface template.2. Create Windows Layout Diagrams for the interface design.3. Develop an HTML prototype.4. Develop a real use case.
Based on the use-case diagram for the health club problem in exercise O in Chapter 5:1. Develop two use scenarios.2. Develop the interface standards (omitting the interface template).3. Draw a WND.4.
Describe the primary components of the interface standards for a Web site that sells some retail products(metaphors, objects, actions, icons and template).
Draw a WND for a Web site that sells some retail products (e.g., books, music, clothes).
Develop two use scenarios for a Web site that sells some retail products (e.g., books, music, clothes).
For the library exercises in Chapter 5 (T, U), Chapter 6(R), Chapter 7 (L), Chapter 8 (M, N), and Chapter 9(G):1. Apply the rules of normalization to the class diagram to check the diagram for
For the Of-the-Month Club exercises in Chapter 5(R, S), Chapter 6 (Q), Chapter 7 (K), Chapter 8 (K, L), and Chapter 9 (E):1. Apply the rules of normalization to the class diagram to check the diagram
For the Picnics R Us exercises in Chapter 5 (P, Q), Chapter 6 (P), Chapter 7 (J), Chapter 8 (I, J), and Chapter 9 (C):1. Apply the rules of normalization to the class diagram to check the diagram for
For the health club exercises in Chapter 5 (N, O), Chapter 6 (O), Chapter 7 (E, F), Chapter 8 (G, H), and Chapter 9 (A):1. Apply the rules of normalization to the class diagram to check the diagram
Provide size estimates for the initial size of the database as well as for the database in one year’s time. Assume that the dealership sells ten models of cars from each manufacturer to
Calculate the size of the database that you created in exercise
Develop a clustering and indexing strategy for this model. Describe how your strategy will improve the performance of the database.

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