system analysis and design methods 7th whitten bentley ppt

... Resource  The systems analyst performs systems analysis and design.  Systems analysis is the study of a business problem domain for the purpose of recommending improvements and specifying ... need the computer and those who understand the technology Trang 7The Modern Systems AnalystThe Systems Analyst As A Modern Business Problem Solver  What is a Systems Analyst?  Systems analysts ... traditional systems analyst?  What are the roles of systems analysts and business users in systems problem solving?  Where are the career opportunities for systems analysts?  Who are the systems

Ngày tải lên: 10/01/2018, 16:08

... S T S SYSTEM BUILDERS SYSTEM DESIGNERS SYSTEM USERS SYSTEM OWNERS Data Technology INFORMATION SYSTEM COMPONENTS (the actual, technical implementation of the system) INFORMATION SYSTEM DESIGN ... of Information Systems  System Builders based upon the design specifications from the system designers In many cases, the system designer and builder for a component are one and the same builder ... DESIGNERS (specification) SYSTEM USERS (requirements) SYSTEM OWNERS (scope) System Builders' views of DATA System Designers' views of DATA System Users' views of DATA System Owners' views of DATA

Ngày tải lên: 10/01/2018, 16:08

... Systems Analysis Systems Design Systems Implementation Trang 19Information System DevelopmentUnderlying Principles of Systems Development  Principle 8: Design Systems for Growth and Change  Systems ... 6 Design and integrate the target system 7 Construct and test the target system 8 Install and implement the production system System Users Information Technology Vendors training, support, and ... demonstrations and feedback ideas and opinions ideas and opinions requirements and rriorities the business, problems, causes, and effects Unplanned System Request Planned System Project Project and System

Ngày tải lên: 10/01/2018, 16:08

... together system owners, users, analysts, designers, and builders to jointly define and design systems Synonyms include joint application design and joint Trang 17Systems AnalysisStrategies for Systems ... What is System Analysis?  For this presentation we will use the following definition:  Systems analysis is (1) the survey and planning of the system and project, (2) the study and analysis ... Trang 7Systems AnalysisStrategies for Systems Analysis and Problem Solving  Modern Structured Analysis  Structured analysis was one the first formal strategies developed for systems analysis

Ngày tải lên: 10/01/2018, 16:08

... ModelingAn Introduction to Systems Modeling a thousand words, most system models are pictorial representations of reality understand those systems, or for proposed systems as a way to document ... PROCESSESFOCUS ON SYSTEM INTERFACES Existing Applications and Technology Existing Interfaces and Technology Existing Networks and Technology FOCUS ON SYSTEM GEOGRAPHY Definition Phase (establish and prioritize ... sampling of existing forms and files; research of similar systems; surveys of users and management; and interviews of users and management simultaneously constructing and verifying the data models

Ngày tải lên: 10/01/2018, 16:08

... by a system’s PROCESSES methods (DFDs). through a system and the work or processing performed by that system Synonyms include bubble chart, transformation graph, and Trang 8FOCUS ON SYSTEM ... the application of formal systems theory and concepts to systems problem solving are organized, and how they work useful real-world systems Trang 13outputs, and the system itself – viewed a process ... Introduction to System Modeling  System Models problems a thousand words, most system models are pictorial representations of reality Trang 4Process ModelingAn Introduction to System Modeling  System

Ngày tải lên: 10/01/2018, 16:09

... Model FOCUS ON SYSTEM PROCESSES Interface Requirements Logical Interface Model FOCUS ON SYSTEM INTERFACES Software (and Hardware) Technology (and standards) Interface Technology (and standards) Networking ... the overall system or a subset of that system system into logical subsets of locations for improved communication, analysis, and design Trang 16Network ModelingInventory Control System Geography ... facts and information as supplied by the user community research of similar systems; surveys of users and management; and interviews of users and management simultaneously constructing and verifying

Ngày tải lên: 10/01/2018, 16:09

... and what are its benefits?  How do you discover objects and classes, and their relationships? Trang 2Object ModelingAn Introduction to Object Modeling and design is called object-oriented analysis. ... The subsystems represent logical functional areas of business processes • The partitioning of system behavior into subsystems is very important in understanding the system architecture and is ... Objects system scope and boundaries in terms of use cases and actors  The use case model diagram represents the relationships between the actors and use cases defined for each business subsystem

Ngày tải lên: 10/01/2018, 16:09

... roles, inputs and outputs, techniques, and steps  What the traditional and prototyping approaches to systems design Trang 2Systems Design and ConstructionWhat is System Design?  Systems design is ... Documentation Trang 4Systems Design and ConstructionStrategies For System Design  Strategies For System Design  There are also many strategies or techniques for performing systems design and they include: ... new system Trang 20Systems Design and ConstructionFast System Analysis Methods  The FAST methodology does not impose a single design technique on system developers discussed: structured design

Ngày tải lên: 10/01/2018, 16:09

... database and data distribution alternatives for information system design?  What are the make versus buy alternatives and variations for information system design?  What are the user and system ... in information system design?  What are the methods for general application architecture and design?  What are the differences between logical and physical data flow diagrams, and explain how ... and guide process design?  How do you draw physical data flow diagrams for a system/application? Trang 3Application Architecture & Process Design General System Design  During general systems

Ngày tải lên: 10/01/2018, 16:09

... database Trang 4Database Design Information System System Information System Database (consolidated & integrated data from files) File File Information System Information System Trang 5 Historically, ... Applications and Technology Existing Interfaces and Technology Existing Networks and Technology FOCUS ON SYSTEM GEOGRAPHY Implementation Phase (translate technical design into code) Design Phase ... database technology, database design and construction, security, backup and recovery, and performance tuning. Trang 24Database Design A legacy file-based information system (built in-house) File

Ngày tải lên: 10/01/2018, 16:09

... repository-driven programming Trang 22Input Design and PrototypingTrang 23Input Design and Prototyping2 3 5 6 7 Trang 24Input Design and PrototypingGUI Controls for Input Design  Text Box  A text box consists ... and a battery • Smart cards are used on a daily basis by over 60% of the French population Trang 13Input Design and PrototypingMethods & Issues for Data Capture Trang 14Input Design and ... reader Trang 10Input Design and PrototypingMethods & Issues for Data Capture  MICR is most widely used in the banking industry Trang 11Input Design and PrototypingMethods & Issues for

Ngày tải lên: 10/01/2018, 16:09

... Trang 33Output Design and PrototypingTrang 34Output Design and Prototyping5 4 2 1 3 Trang 35Output Design and PrototypingTrang 36Output Design and Prototyping2 Trang 37Output Design and PrototypingSummary ... 25Output Design and PrototypingTrang 26Output Design and PrototypingPrinciples & Guidelines for Output Design  Output Media and Formats format • Narrative output format uses sentences and paragraphs ... axis, and the measurement along the vertical axis Trang 23Output Design and PrototypingTrang 24Output Design and PrototypingPrinciples & Guidelines for Output Design  Output Media and Formats

Ngày tải lên: 10/01/2018, 16:09

... English).The system interprets these commands against a known syntax and requests clarification if it doesn't understand what the user wants As new interpretations become known, the system learns the system ... for future reference. Trang 25User Interface Design and Prototyping Trang 26User Interface Design and Prototyping Trang 27User Interface Design and Prototyping Styles of User Interfaces  Question-Answer ... several levels of menus to locate and select a desired option Trang 14User Interface Design and Prototyping Cascading Menu Trang 15User Interface Design and Prototyping Cascading Menu Trang

Ngày tải lên: 10/01/2018, 16:09

... TRACING INPUT D Trang 17Software DesignStructured Design communicates the modular design of the program  Step 1 - Create a process that will serve as a “commander and chief” of all other modules. ... computer program that is easier to implement and maintain Trang 4FOCUS ON SYSTEM INTERFACESSoftware (and Hardware) Technology Interface Technology FOCUS ON SYSTEM GEOGRAPHY Check credit Validate Validate ... rs Trang 5Software DesignStructured Design  The primary tool used in structured design is the structure chart  Structure charts are used to graphically depict a modular design of a program

Ngày tải lên: 10/01/2018, 16:09

... documentation accurate and current. Trang 18Object-Oriented Design The Process of Object DesignSupport the Use Case Scenario  In this activity we want to identify and categorize the design objects ... use case, and identify the object interactions, their responsibilities, and their behaviors  Step 1 - Identify and Classify Use Case Design Objects:  In this step we examine each design use ... PRODUCT Trang 20Object-Oriented Design The Process of Object DesignSupport the Use Case Scenario  Step 2 - Identify Object Attributes:  During both analysis and design, object attributes may

Ngày tải lên: 10/01/2018, 16:09

... and Design? System development can generally be thought of having two major components: systems analysis and systems design. In System Analysis more emphasis is given to understanding the details ... done. 2.2.3. Design of System After the system has been analyzed by the analyst, the design stage of system life cycle begins. In design phase, the structure or design for the proposed system is ... between analysis and design? Can one begin to design without analysis? Why 2.11. Summary of System Development Life Cycle Models Key points covered in this lesson are >>The system& apos;s...

Ngày tải lên: 27/10/2013, 23:15

... three-phase system are only half those of the three separate single-phase systems, and the line-voltage drop between the source and load in the three-phase system is half that of each single-phase system. ... maintaining system standards and reliability. NERC coordinates its eÔorts with FERC and other organizations such as the Edison Electric Institute (EEI) [10]. As shown in Figure 1.3, the transmission system ... functions for both the distributed energy system and the local electric power system that allow paral- leling and disconnection from the electric power system. These power electronic interfaces...

Ngày tải lên: 30/03/2014, 07:20

... 1 SCHOOL OF INFORMATION AND COMMUNICATION TECHNOLOGY HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGY ______ * ______ SYSTEM ANALYSIS AND DESIGN REPORT Author : ... Conceptual data modeling ………………………………………… 17 B. Design I. High-level Design 1. Scenario Analysis …………… 18 2. Object Analysis ……………………………………………… 22 3. Screen Design 3.1 Log on ……………………………………………… 24 ... B. Design I. High – level Design 1. Scenario analysis. 1.1. User log on 27  Citizen User Menu Screen Screen Layout System name S City Library System...

Ngày tải lên: 01/06/2014, 17:25

... relationship among specialized analysis tools, Arthur M. Langer Analysis and Design of Information Systems Third Edition 16 Analysis and Design of Information Systems System Boundaries. This provides ... requirements to system requirements 5. Design the database and accompanying applications 6. Build, test, and implement the database and applications 20 Analysis and Design of Information Systems Transition ... design of the program structure, Requirement Application Design Database Design Network Design Outline System Design Audit & Control Design Back-up & Recovery Design Transition Design System Test Plan Final...

Ngày tải lên: 13/05/2014, 19:21