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computer science
systems analysis and design
Questions and Answers of
Systems Analysis And Design
Understand the importance of evaluating a new system and be able to recommend a suitable evaluation technique to a client.
Address security, disaster preparedness, and disaster recovery concerns for traditional and Web-based systems.
Recognize the differences among physical conversion strategies and be able to recommend an appropriate one to a client.
Design appropriate training programs for users of a new system.
Understand how service-oriented architecture and cloud computing are changing the nature of information system design.
Realize the importance of documentation, testing, maintenance, and auditing.
Recognize the importance of users and analysts taking a total quality approach to improve the quality of software design and maintenance.
Articulate accuracy advantages of user input on ecommerce websites.
Recognize how to ensure data quality through validation.
Design effective and efficient data capture approaches for people and systems.
Understand the uses of effective coding to support users in accomplishing their tasks.
Formulate queries that permit users to search the Web.
Articulate HCI implications for designing ecommerce websites.
Understand the importance of user feedback.
Design effective onscreen dialog for HCI.
Design a variety of user interfaces.
Design useful touch screen interfaces for smartphones and tablets.
Understand human–computer interaction (HCI).
Understand the relationship of business intelligence to data warehouses, big data, business analytics and text analytics in helping systems and people make decisions.
Comprehend the usefulness of publishing databases to the Web.
Understand the concept of data warehouses.
Use databases for presenting data.
Use normalization to efficiently store data in a database.
Understand database concepts.
Design useful input pages for users of intranets, the Web, smartphones, and tablets.
Design useful input forms for people interacting on the Web.
Design engaging input displays for users of information systems.
Design functional input forms for users of business systems.
Understand the development process for apps used on smartphones and tablets.
Design websites for ecommerce and corporate uses that include Web 2.0 technologies.
Design dashboards, widgets, and gadgets.
Design display output.
Realize how output bias affects users.
Relate output content to output methods inside and outside the organization.
Understand the objectives for effective output design.
Document and communicate the newly modeled object-oriented system to users and other analysts.
Diagram systems with the UML toolset so they can be described and properly designed.
Apply the steps used in UML to break down the system into a use case model and then a class model.
Comprehend the concepts of Unified Modeling Language (UML), the standard approach for modeling a system in the object-oriented world.
Understand what object-oriented systems analysis and design is and appreciate its usefulness.
Choose an appropriate decision analysis method for analyzing structured decisions and creating process specifications.
Use structured English, decision tables, and decision trees to analyze, describe, and document structured decisions.
Recognize the difference between structured and semi structured decisions.
Understand the purpose of process specifications.
Recognize the functions of data dictionaries in helping users update and maintain information systems.
Create data dictionary entries for data processes, stores, flows, structures, and logical and physical elements of the systems being studied, based on DFDs.
Understand the concept of a repository for analysts’ project information and the role of CASE tools in creating them.
Understand how analysts use data dictionaries for analyzing data-oriented systems.
Understand and apply the concept of partitioning of physical DFDs.
Produce physical DFDs based on logical DFDs you have developed.
Develop and explode logical DFDs that illustrate the proposed system.
Create, use, and explode logical DFDs to capture and analyze the current system through parent and child levels.
Comprehend the importance of using logical and physical data flow diagrams (DFDs) to graphically depict data movement for humans and systems in an organization.
Understand how to improve efficiency for users who are knowledge workers using either structured methods or agile modeling.
Learn the importance of values critical to agile modeling.
Understand agile modeling and the core practices that differentiate it from other development methodologies.
Use prototyping for human information requirements gathering.
Understand the roots of agile modeling in prototyping and the four main types of prototyping.
Apply the STROBE technique to observe and interpret a decision maker’s environment and interaction with technologies.
Create an analyst’s playscript to observe decision makers’ activities.
Construct useful samples of people, documents, and events for determining human information requirements.
Understand the concept of sampling for human information requirements analysis.
Recognize the value of unobtrusive methods of information gathering.
Design and administer effective questionnaires.
Write effective questions to survey users about their work.
Understand the concept of JAD and when to use it.
Understand the purpose of stories and why they are useful in systems analysis.
Construct interview questions to elicit human information requirements and structure them in a way that is meaningful to users.
Recognize the value of using interactive methods for information gathering.
Write an effective systems proposal, concentrating on both content and design.
Build and manage a project team.
Manage a project by preparing a budget, creating a work breakdown structure, scheduling activities, and controlling the schedule and costs.
Forecast and analyze tangible and intangible costs and benefits.
Evaluate hardware and software alternatives by addressing the trade-offs.
Understand how projects are initiated and selected, define a business problem, and determine the feasibility of a proposed project.
Comprehend that organizational culture impacts the design of information systems.
Recognize that different levels of management require different systems.
Depict systems graphically, using context-level data flow diagrams, entity-relationship models, use cases, and use case scenarios.
Understand that organizations and their members are systems and that analysts need to take a systems perspective.
Comprehend the fundamentals of three development methodologies: SDLC, the agile approach, and object-oriented systems analysis and design.
Realize what the many roles of a systems analyst are.
Understand the need for systems analysis and design in organizations.
The data entry operators at Melanie Julian Construction have been making errors when entering the codes for residential siding products, which are as follows: U = stUcco, A = Aluminum, R = bRick, M =
In Section 18.7, we assumed the elevation angle increment Ɛ is equal to zero. Develop an equivalent to Eq. (18.43) for the case when Ɛ≠0. You need to use a third-order three-dimensional Taylor
Figures 16.8a and 16.8b clearly demonstrate how the estimate of the covariance matrix impacts the quality of the adaptive null. In Section 16.3 (see Eq. (16.71)), a technique was described for
Building on the previous problem, in Chapter 15, the effect of having a limited number of bits to steer the main beam was demonstrated. Modify the code of the previous problem to include the effects
In Section 16.3, the MATLAB function “adaptive_array_lms.m” was developed to illustrate how linear arrays can adaptively place a null anywhere within the array’s field of view. This code,
Repeat the example in Section 16.1 for angle π/4 instead of π/6.
Modify the FFT routine developed in the previous problem to compute and plot the power gain pattern.
In Section 15.4.2, we showed how a DFT can be used to compute the radiation pattern of a linear phased array. Consider a linear phased array of 64 elements at half wavelength spacing, where a
An experimental expression for the clutter power spectrum density is\[W(f)=w_{0} \exp \left(-f^{2} / 2 \sigma_{c}^{2}\right)\]where \(w_{0}\) is a constant. Show that using this expression leads to
Write a MATLAB® program to decimate any sequence of finite length and demonstrate it using the previous problem.
In the previous problem, assuming that you may be able to use the small grazing angle approximation. (a) Calculate the ratio of the direct to the indirect signal strengths at the target. (b) If the
A monostatic radar has the following parameters: transmit power \(100 \mathrm{~kW}\), transmit losses \(2 \mathrm{~dB}\), operating frequency \(7 \mathrm{GHz}\), PRF \(2000 \mathrm{~Hz}\), pulse
A certain radar has losses of \(5 d B\) and a receiver noise figure of \(10 d B\). This radar has a detection coverage requirement that extends over \(3 / 4\) of a hemisphere and must complete it in
Repeat the previous problem when there is \(0.1 \mathrm{~dB} / \mathrm{km}\) atmospheric attenuation.Data From Problem 3.20An X-band airborne radar transmitter and an air-to-air missile receiver act
In reference to Figure 1.21, compute the Doppler frequency for \(v=150 \mathrm{~m} / \mathrm{s}, \theta_{a}=30^{\circ}\), and \(\theta_{\mathrm{e}}=15^{\circ}\). Assume that \(\lambda=0.1
List various tools for generating test data. Explain their purpose and applicability.
Effective testing is dependent on the definition of test adequacy criteria. Explain and comment.
Define the following:(a) Genetic algorithm(b) Gene(c) Chromosomes(d) Initial population
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