systems analysis and design methods 5th edition

... front- and back-office information systems • Describe the role of information systems architecture in systems development • Identify three high-level goals that provide system owners and system ... as it relates to Knowledge, Processes, and Communications building blocks 2-3 2-4 Front- and Back-Office Information Systems • Front-office information systems support business functions that ... organize and view the fundamental building blocks of information systems 2-8 High-Level Goals of System Owners and System Users • Improve business knowledge • Improve business processes and services

Ngày tải lên: 10/01/2018, 16:06

... estimate and assign resources (including people and costs), schedule activities and resources, monitor progress against schedule and budget, control and modify schedule and resources, and report ... two stages, (1) systems development and (2) systems operation and maintenance • System development methodology – a formalized approach to the systems development process; a standardized development ... activities, methods, best practices, deliverables, and automated tools that system developers and project managers are to use to develop and continuously improve information systems and software

Ngày tải lên: 10/01/2018, 16:06

... • • • • Define the terms project and project management, and differentiate between project and process management Describe causes of failed information systems and technology projects Describe ... dependencies Assign resources and produce a project schedule with a Gantt chart Assign people to tasks and direct the team effort Use critical path analysis to adjust schedule and resource allocations ... schedule and budget deviations Manage user expectations of a project and adjust project scope 4-3 Projects and Project Managers Project – a [temporary] sequence of unique, complex, and connected

Ngày tải lên: 10/01/2018, 16:06

... requirements analysis, logical design, and decision analysis phases in terms of information system building blocks • Describe scope definition, problem analysis, requirements analysis, logical design, and ... requirements analysis, logical design, and decision analysis phases • Describe a number of systems analysis approaches for solving business system problems • Describe scope definition, problem analysis, ... methodologies for systems analysis and design 5-36 Key Terms of Requirements Analysis Phase (cont.) Timeboxing – a technique that delivers information systems functionality and requirements through

Ngày tải lên: 10/01/2018, 16:06

... to elicit the correct and necessary system requirements from the stakeholders and specify them in a manner understandable to them so those requirements can be verified and validated The hardest ... Standish Group International, Inc., “Chaos: A Recipe for Success” User-Centered Development and Use-Case Modeling User-centered development – a process of systems development based on understanding ... diagram that depicts the interactions between the system and external systems and users • graphically describes who will use the system and in what ways the user expects to interact with the system

Ngày tải lên: 10/01/2018, 16:06

... Modeling and Analysis McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies, Inc All Objectives • • • • • • • • • • Define data modeling and explain its benefits Recognize and understand ... understand the basic concepts and constructs of a data model Read and interpret an entity relationship data model Explain when data models are constructed during a project and where the models are ... relationship diagram and describe data structures and attributes to the repository Normalize a logical data model to remove impurities that can make a database unstable, inflexible, and nonscalable

Ngày tải lên: 10/01/2018, 16:06

... • • • • • • Define systems modeling and differentiate logical and physical models Define process modeling and explain its benefits Recognize and understand basic concepts and constructs of a ... adjectives and adverbs are not permitted • Blocking and indentation are used to set off the beginning and ending of constructs • User readability should always take priority Policies and Decision ... data flow diagrams and describe the elementary data flows in terms of data structures and procedural logic Document the distribution of processes to locations Synchronize data and process models

Ngày tải lên: 10/01/2018, 16:06

... Object-Oriented Analysis and Modeling Using the UML McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies, Inc All Objectives 10-2 • Define object modeling and explain its benefits • Recognize and ... and understand the basic concepts and constructs of object modeling • Define the UML and its various types of diagrams • Evolve a business requirements use-case model into a system analysis use-case ... activity diagram • Discover objects and classes, and their relationships • Construct a class diagram 10-3 Introduction to Object Modeling Object-oriented analysis (OOA) – an approach used to

Ngày tải lên: 10/01/2018, 16:06

... online and real-time processing Touch Screen Same as above Data is entered o a touch screen display or handheld device Data entry users either touch commands and data choices or enter data using handwriting ... data capture, data entry, and data input • Identify and describe several automatic data collection technologies • Apply human factors to the design of computer inputs • Design internal controls ... requires rigid command menu structure and limited input options Data is almost always processed immediately as a transaction or inquiry Speech Same as sound Data (and commands) is spoken This

Ngày tải lên: 10/01/2018, 16:06

... factors and guidelines and incorporate them into a design of a user interface • Integrate output and input design into an overall user interface that establishes the dialogue between users and computer ... inconsistency Commandments of User Interface Design 17-6 • Understand your users and their tasks • Involve the user in interface design • Test the system on actual users • Practice iterative design Human ... accepted command language that can be used to invoke actions • SQL • Mnemonic syntax is built around commands defined for custom information systems • Commands unique to that system and meaningful

Ngày tải lên: 10/01/2018, 16:06

... with other objects and methods 18-10 Transforming Analysis Class Diagram to Design Class Diagram • Add design objects to diagram • Add attributes and attribute-type information to design objects ... reflects design specifics Model object states with state machine diagrams Understand the role of coupling and cohesion in object reuse Describe the use of design patterns and two common design ... between design patterns, object frameworks, and components Understand the use of communication diagrams, component diagrams, and deployment diagrams 18-3 Object-Oriented Design Object-oriented design

Ngày tải lên: 10/01/2018, 16:06

... Inputting new data 20-19 • In other words, reports and outputs • Requirements that exceed this should be subjected to systems analysis and design to consider implications • Can be written in ... repository and documentation for changes Database recovery and restructuring Program analysis, recovery, and restructuring • Software metrics - mathematically proven measurements of software quality and ... be performed in system enhancement, and relationship between enhancement and original systems development process • Describe the role of reengineering in systems enhancement Describe three types

Ngày tải lên: 10/01/2018, 16:07

... Modern Systems Analyst  Preparing For a Career as a Systems Analyst Systems Analysis and Design Skills   All systems analysts need thorough and ongoing training in systems analysis and design Systems ... What is a Systems Analyst?   Systems analysts are people who understand both business and computing Systems analysts study business problems and opportunities and then transform business and information ... Systems Analyst Who Should Read This Book  The Systems Analyst - A Key Resource  The systems analyst performs systems analysis and design  Systems analysis is the study of a business problem domain

Ngày tải lên: 10/01/2018, 16:08

... System Designers’ View of Interfaces  System designers must be concerned the details of both user and system interfaces  System designers are concerned with consistency, completeness, and user ... Information Systems  What is the difference between Data and Information?    Data are raw facts about the organization and its business transactions Most data items have little meaning and use ... Blocks A Review of Fundamentals of Information Systems  Information technology has significantly expanded the power and potential of most information systems  Information technology is a contemporary

Ngày tải lên: 10/01/2018, 16:08

... form, the life cycle consists of four phases:  systems survey  systems analysis  systems design  systems implementation  A fifth activity, systems support, refines the resulting system by ... suitable solution  Identify candidate solutions and select the ``best'' solution  Design and/ or implement the solution  Observe and evaluate the solution's impact, and refine the solution accordingly ... first and foremost, a problem-solving approach to building systems The classical problem-solving approach is as follows:  Study and understand the problem (opportunity, and/ or directive) and its

Ngày tải lên: 10/01/2018, 16:08

... What is System Analysis? Strategies for Systems Analysis and Problem Solving The Survey Phase of Systems Analysis The Study Phase of Systems Analysis The Definition Phase of Systems Analysis The ... inputs, outputs, and files required to respond to business events Systems Analysis Strategies for Systems Analysis and Problem Solving  Modern Structured Analysis  Structured analysis introduced ... becomes the design blueprint for constructing the final system Systems Analysis Strategies for Systems Analysis and Problem Solving  Modern Structured Analysis  Modern structured analysis is

Ngày tải lên: 10/01/2018, 16:08

... is systems modeling and what is the difference between logical and physical system models? What is data modeling and what are its benefits? Can you recognize and understand the basic concepts and ... System Concepts   Most systems analysis techniques are strongly rooted in systems thinking  Systems thinking is the application of formal systems theory and concepts to systems problem solving ... worth a thousand words, most system models are pictorial representations of reality Models can be built for existing systems as a way to better understand those systems, or for proposed systems as

Ngày tải lên: 10/01/2018, 16:08

... Oriented Analysis and Design 12. Designing the Human Interface 13. Systems Implementation and Operation myriam.lewkowicz@u tt.fr 31 General Types of Information Systems Management Information Systems Types ... components: Technology, people, organizations Understand IS career opportunities Understand types of information systems Understand IS and organizational success or failure Understand the future of IS management ... 4 Enterprise-Wide Information Systems myriam.lewkowicz@u tt.fr 45 Chapter Objectives Understand how information technology supports business activities Understand enterprise systems and how they evolved Understand...

Ngày tải lên: 04/11/2013, 19:15

... Objectives Understand the term information systems (IS) Understand IS components: Technology, people, organizations Understand IS career opportunities Understand types of information systems Understand IS and ... Data Modeling 11. Object Oriented Analysis and Design 12. Designing the Human Interface 13. Systems Implementation and Operation 29 General Types of Information Systems Data input Manual data ... Resources Benefits Marketing 45 Chapter Objectives Understand how information technology supports business activities Understand enterprise systems and how they evolved Understand software applications that are internally...

Ngày tải lên: 22/03/2014, 21:21

... superscripts and denote incident and scattered fields. The quantities are in general complex and the subscripts 1 and 2 represent any combina- tion of orthogonal polarizations. More precisely, , and ... instantaneous total electric field, (2.9) where and are unit vectors along the x and y directions, respectively. At , and , then by replacing by the ratio and by using trigonometry properties Eq. (2.9) can ... polarization ellipse becomes a cir- cle, and the resultant wave is then called circularly polarized. Alternatively, when and the wave becomes linearly polarized. Eqs. (2.7) and (2.8) can be combined to...

Ngày tải lên: 08/04/2014, 10:27