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SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

C H A P T E R

5
Irwin/McGraw-Hill

SYSTEMS
ANAL...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Chapter Five
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Whitten Bentley Dittman

Systems Analysis

What...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Chapter Map

Irwin/McGraw-Hill

Copyright © 2000...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Systems Analysis vs. Systems Design

Systems ana...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Information Systems Analysis

Information system...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Context of Systems Analysis

Irwin/McGraw-Hill

...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Repository

– A repository is a location (or set...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Model-Driven Analysis Methods

Model-driven anal...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Model-Driven Methods

Structured analysis is a m...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

A Simple Process Model

Irwin/McGraw-Hill

Copyr...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

A Simple Data Model

Irwin/McGraw-Hill

Copyrigh...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

A Simple Object Model
STUDENT
-ID Number
-Name
-...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Accelerated Analysis Methods

Accelerated analys...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Accelerated Analysis Methods

Discovery prototyp...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Requirements Discovery Methods

– Requirements d...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Business Process Redesign Methods

Business proc...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Systems Analysis Phases

• Preliminary Investiga...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Preliminary Investigation Phase Context

Irwin/M...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Preliminary Investigation Phase Tasks

Irwin/McG...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Sample Request for System Services

Irwin/McGraw...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Problem Statements

Irwin/McGraw-Hill

Copyright...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Problem Analysis Phase Context

Irwin/McGraw-Hil...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Problem Analysis Phase Context

Irwin/McGraw-Hil...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Cause-and-Effect Analysis

Cause-and-effect anal...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

System Improvement Objectives

An objective is a...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Cause-and-Effect / System Improvement Objectives...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Requirements Analysis Phase Context

Irwin/McGra...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Requirements Analysis Phase Tasks

Irwin/McGraw-...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Business Requirements

A functional requirement ...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Logical System Models

Logical system models dep...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

A Simple Interface Model

Irwin/McGraw-Hill

Cop...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Requirements Statement

Irwin/McGraw-Hill

Copyr...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Decision Analysis Phase Context

Irwin/McGraw-Hi...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Decision Analysis Phase Tasks

Irwin/McGraw-Hill...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Feasibility Analyses

• Technical feasibility. I...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Candidate Systems Matrix

Irwin/McGraw-Hill

(Co...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Candidate Systems Matrix (concluded)

Irwin/McGr...
SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition

Whitten Bentley Dittman

Feasibility Matrix

Irwin/McGraw-Hill

Copyright...
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Asi Chap005

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Analisis Sistem Informasi

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  • This repository of slides is intended to support the named chapter. The slide repository should be used as follows:
    Copy the file to a unique name for your course and unit.
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    Each slide includes instructor notes. To view those notes in PowerPoint, click left on the View Menu; then click left on Notes View sub-menu. You may need to scroll down to see the instructor notes.
    The instructor notes are also available in hard copy as the Instructor Guide to Accompany Systems Analysis and Design Methods, 5/ed. Contact your Irwin/McGraw-Hill sales representative if you need a hard copy.
  • No additional notes
  • No additional notes
  • Conversion Notes
    In previous editions, we used the term systems synthesis for systems design. We thought it best to change to reinforce the text title and course subject matter.
    Teaching Notes
    Systems modeling corresponds precisely with this classical definition of systems analysis and design.
  • Conversion Notes
    Technically, in this edition we return the decision analysis phase to the systems analysis chapter. At first glance, that may appear to violate the nontechnical focus of the book. In practice, this is merely a transition to technical concerns. The decision analysis phase does look at technical feasibility, but it focuses more on economic, operational, and schedule feasibility—all of which are firmly in the business domain.
  • Teaching Notes
    This context comes directly from Chapter 3. The blue processes and the blue and black data flows define systems analysis.
  • No additional notes
  • Teaching Notes
    In previous editions, we tried to distinguish between “information systems” and “computer applications” (the latter being a subset of the former). This created more confusion with students than it was worth.
    Some books use the term “computer technology.” We prefer the more contemporary term, “information technology” as a superset of computer technology.
  • Conversion Notes
    We played down the methodology coverage in this edition. Several reviewers felt it was too much, too soon.
    In some books, information engineering is considered a “structured technique” as is structured analysis. We cannot argue this. Both methods use the same diagrammatic tools to model a system.
    Information engineering is more complex and comprehensive than the oversimplified presentation in this edition’s chapter. But we have found few organizations that still practice pure IE. But many organizations still practice data-driven analysis and design.
  • Teaching Notes
    It is not the intent to teach the tool in this chapter. DFDs will be taught in Chapter 8.
  • Teaching Notes
    It is not the intent to teach the tool in this chapter. ERDs will be taught in Chapter 7.
  • Teaching Notes
    It is not the intent to teach the tool in this chapter. Object Models using the UML will be taught in Part Five, Module A.
  • No additional notes
  • Teaching Notes
    Some might consider rapid architecture analysis to be a model-driven approach since it results in system models. We elected to classify it as an accelerated analysis approach because of the technique used to build those models.
    Teaching Tip
    Demonstrate reverse engineering to transform an Access database into a data model.
  • Conversion Notes
    In this edition, we have separated joint application development (JAD) into its component parts, joint requirements planning (JRP) and joint application design (also JAD). Only JRP is applicable to this chapter.
  • No additional notes
  • Conversion Notes
    The phases correspond to the following fourth edition terms:
    Preliminary investigation = former survey phaseProblem analysis = former study phaseRequirements analysis = former definition phaseDecision analysis = former configuration phase
  • Conversion Notes
    In this edition we are trying hard to reinforce the building blocks.
    Teaching Notes
    The focus system owner perspectives.
  • Teaching Notes
    This is called a task diagram for a phase.
    It is only a guideline. Each project will adapt these tasks to the project at hard. Tasks may be added, split, or deleted according to the methodology and route used.
    The dashed line is a control flow (as contrasted to a solid data flow). In this case, it represents a decision that determines whether the next task is necessary.
  • Teaching Notes
    Not all businesses have a formal document to initiate projects.
  • Teaching Notes
    Alternatively, this information could be documented in a business memo or report.
  • Conversion Notes
    In this edition we are trying hard to reinforce the building blocks.
    Teaching Notes
    The focus is on both system owner and system user perspectives.
    We are looking at the building blocks of the existing system.
  • No additional notes
  • Teaching Tip
    Analyze a problem using cause-and-effect analysis.
    If you know “fishbone diagrams”, demonstrate cause-and-effect analysis using the diagrams.
  • Teaching Tips
    Formulate objectives as an in-class exercise.
  • No additional notes
  • Conversion Notes
    In this edition we are trying hard to reinforce the building blocks.
    Teaching Notes
    The focus is on system user perspectives.
    Requirements can be expressed in narrative, model, and prototype forms, or any combination thereof.
  • Teaching Notes
    Some of the tasks are completed in parallel.
  • No additional notes
  • Teaching Notes
    The opposite is physical system models, which will be introduced in the systems design chapter.
  • No additional notes
  • No additional notes
  • Conversion Notes
    In this edition we are trying hard to reinforce the building blocks.
    Teaching Notes
    The focus is on system user and system designer perspectives.
    Notice the transition to technical concerns leading to a system proposal that includes data, process, and interface elements.
  • No additional notes
  • No additional notes
  • No additional notes
  • No additional notes
  • No additional notes
  • Transcript of "Asi Chap005"

    1. 1. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman C H A P T E R 5 Irwin/McGraw-Hill SYSTEMS ANALYSIS Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    2. 2. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Chapter Five • • • • • • Whitten Bentley Dittman Systems Analysis What are information systems, and who are the stakeholders in the information systems game? Define systems analysis and relate the term to the preliminary investigation, problem analysis, requirements analysis, and decision analysis phases of the systems development methodology. Describe a number of systems analysis approaches for solving business system problems. Describe the preliminary investigation, problem analysis, requirements analysis, and decision analysis phases in terms of your information system building blocks. Describe the preliminary investigation, problem analysis, requirements analysis, and decision analysis phases in terms of purpose, participants, inputs, outputs, techniques, and steps. Identify those chapters and modules in this textbook that can help you learn specific systems analysis tools and techniques. NOTE: Although some of the tools and techniques of systems analysis are introduced in this chapter, it is not the intent of this chapter to teach those tools and techniques. This chapter teaches only the process of systems analysis. The tools and techniques will be taught in the subsequent five chapters. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    3. 3. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Chapter Map Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    4. 4. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Systems Analysis vs. Systems Design Systems analysis is a problem-solving technique that decomposes a system into its component pieces for the purpose of studying how well those component parts work and interact to accomplish their purpose. Systems design (also called systems synthesis) is a complementary problem-solving technique (to systems analysis) that reassembles a system’s component pieces back into a complete system— hopefully, an improved system. This may involves adding, deleting, and changing pieces relative to the original system. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    5. 5. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Information Systems Analysis Information systems analysis is defined as those development phases in a project that primarily focus on the business problem, independent of any technology that can or will be used to implement a solution to that problem. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    6. 6. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Context of Systems Analysis Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    7. 7. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Repository – A repository is a location (or set of locations) where systems analysts, systems designers, and system builders keep all of the documentation associated with one or more systems or projects. • A network directory of computer-generated files that contain project correspondence, reports, and data • A CASE tool dictionary or encyclopedia (Chapter 3) • Printed documentation (binders and system libraries) • An intranet website interface to the above components Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    8. 8. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Model-Driven Analysis Methods Model-driven analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system model becomes the blueprint for designing and constructing an improved system. A model is a representation of either reality or vision. Just as “a picture is worth a thousand words,” most models use pictures to represent the reality or vision. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    9. 9. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Model-Driven Methods Structured analysis is a model-driven, process-centered technique used to either analyze an existing system, define business requirements for a new system, or both. The models are pictures that illustrate the system’s component pieces: processes and their associated inputs, outputs, and files. Information engineering (IE) is a model-driven and datacentered, but process-sensitive technique to plan, analyze, and design information systems. IE models are pictures that illustrate and synchronize the system’s data and processes. Object-oriented analysis (OOA) is a model-driven technique that integrates data and process concerns into constructs called objects. OOA models are pictures that illustrate the system’s objects from various perspectives such as structure and behavior. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    10. 10. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman A Simple Process Model Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    11. 11. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman A Simple Data Model Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    12. 12. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman A Simple Object Model STUDENT -ID Number -Name -Grade Point Average COURSE 0..* has record for> +Admit() +Regsiter for Classes() +Withdraw() +Change Address() +Calculate GPA() 1 +Graduate() 0..* -Subject -Number -Title -Credit +Create a Course() +Delete from Course Master() +Change1 Course Master() in TRANSCRIPT COURSE -Semester -Division -Grade +Add() +Drop() +Complete() +Change Grade() Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    13. 13. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Accelerated Analysis Methods Accelerated analysis approaches emphasize the construction of prototypes to more rapidly identify business and user requirements for a new system. A prototype is a small-scale, incomplete, but working sample of a desired system. Prototypes cater to the “I’ll know what I want when I see it” way of thinking that is characteristic of many users and managers. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    14. 14. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Accelerated Analysis Methods Discovery prototyping (sometimes called requirements prototyping) is used to identify the users’ business requirements by having them react to a quick-and-dirty implementation of those requirements. Rapid architecture analysis is an approach that attempts to derive system models (as described earlier in this section) from existing systems or discovery prototypes. • Reverse engineering technology reads the program code for a database, application program, and/or user interface and automatically generates the equivalent system model. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    15. 15. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Requirements Discovery Methods – Requirements discovery includes those techniques to be used by systems analysts to identify or extract system problems and solution requirements from the user community. • Fact-finding (or information gathering) is a classical set of techniques used to collect information about system problems, opportunities, solution requirements, and priorities. – – – – – Sampling Research Observation Questionnaires and surveys Interviews • Joint requirements planning (JRP) techniques use facilitated workshops to bring together all of the system owners, system users, systems analysts, and some systems designer and builders to jointly perform systems analysis. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    16. 16. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Business Process Redesign Methods Business process redesign is the application of systems analysis methods to the goal of dramatically changing and improving the fundamental business processes of an organization, independent of information technology. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    17. 17. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Systems Analysis Phases • Preliminary Investigation Phase • Problem Analysis Phase • Requirements Analysis Phase • Decision Analysis Phase Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    18. 18. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Preliminary Investigation Phase Context Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    19. 19. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Preliminary Investigation Phase Tasks Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    20. 20. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Sample Request for System Services Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    21. 21. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Problem Statements Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    22. 22. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Problem Analysis Phase Context Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    23. 23. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Problem Analysis Phase Context Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    24. 24. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Cause-and-Effect Analysis Cause-and-effect analysis is a technique in which problems are studied to determine their causes and effects. In practice, effects can be symptomatic of more deeply rooted or basic problems which, in turn, must be analyzed for causes and effects until such a time as the causes and effects do not yield symptoms of other problems. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    25. 25. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman System Improvement Objectives An objective is a measure of success. It is something that you expect to achieve, if given sufficient resources. • Reduce the number of uncollectible customer accounts by 50 percent within the next year. • Increase by 25 percent the number of loan applications that can be processed during an eight-hour shift. • Decrease by 50 percent the time required to reschedule a production lot when a workstation malfunctions. A constraint is something that will limit your flexibility in defining a solution to your objectives. Essentially, constraints cannot be changed. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    26. 26. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Cause-and-Effect / System Improvement Objectives PROBLEMS, OPPORTUNITIES, OBJECTIVES, AND CONSTRAINTS MATRIX Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    27. 27. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Requirements Analysis Phase Context Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    28. 28. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Requirements Analysis Phase Tasks Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    29. 29. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Business Requirements A functional requirement is a description of activities and services a system must provide. A nonfunctional requirement is a description of other features, characteristics, and constraints that define a satisfactory system. Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    30. 30. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Logical System Models Logical system models depict what a system is or what a system must do—not how the system will be implemented. Because logical models depict the essential requirements of a system, they are sometimes called essential system models. • • • • Irwin/McGraw-Hill Process models (e.g., data flow diagrams) Data models (e.g., entity relationship diagrams) Interface models (e.g., context diagrams) Object models (e.g., Uniform Modeling Language diagrams) Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    31. 31. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman A Simple Interface Model Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    32. 32. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Requirements Statement Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    33. 33. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Decision Analysis Phase Context Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    34. 34. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Decision Analysis Phase Tasks Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    35. 35. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Feasibility Analyses • Technical feasibility. Is the solution technically practical? Does our staff have the technical expertise to design and build this solution? • Operational feasibility. Will the solution fulfill the users’ requirements? To what degree? How will the solution change the users’ work environment? How do users feel about such a solution? • Economic feasibility. Is the solution cost-effective? • Schedule feasibility. Can the solution be designed and implemented within an acceptable time period? Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    36. 36. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Candidate Systems Matrix Irwin/McGraw-Hill (Continued) Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    37. 37. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Candidate Systems Matrix (concluded) Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
    38. 38. SYSTEMS ANALYSIS AND DESIGN METHODS 5th Edition Whitten Bentley Dittman Feasibility Matrix Irwin/McGraw-Hill Copyright © 2000 The McGraw-Hill Companies. All Rights reserved
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