1 / 29

CISA 1310 Introduction to Programming Tools

cleta
Download Presentation

CISA 1310 Introduction to Programming Tools

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. College of Business Administration Texas A&M University-Kingsville CISA 1310 Introduction to Programming Tools Dr. Rick Aukerman, CCP Department of Accounting & Computer Information Systems

    2. College of Business Administration Texas A&M University-Kingsville Good programmers can rule the kingdom !

    3. College of Business Administration Texas A&M University-Kingsville Introduction to Structured Design Businesses of all sizes use computers to do tasks that were once either done manually or not done at all. For those computers to play an appropriate role in the success of any business, we must have a method for including those computers in our business. That approach is what we call "structured design."Businesses of all sizes use computers to do tasks that were once either done manually or not done at all. For those computers to play an appropriate role in the success of any business, we must have a method for including those computers in our business. That approach is what we call "structured design."

    4. College of Business Administration Texas A&M University-Kingsville What is a System? System a combination of people, equipment and procedures that work together to perform a specific function Computer based information system some of the procedures are performed by a computer

    5. College of Business Administration Texas A&M University-Kingsville System Development Life Cycle Analyze the current system. Define the new system requirements. Design the new system. Develop the new system. Implement the new system. Evaluate the new system.

    6. College of Business Administration Texas A&M University-Kingsville 1. Analyze the current system Done by systems analyst Users Subject Matter experts

    7. College of Business Administration Texas A&M University-Kingsville 2. Define the system requirements Specify what needs to be done Input and output requirements Storage requirements Processing requirements

    8. College of Business Administration Texas A&M University-Kingsville 3. Design the new system Shape the requirements into a system Done by a System Designer Uses a variety of tools CASE: Computer Assisted Software Engineering Automated tools to assist in design System Flowchart: - A graphical representation of the programs within a system and how they interrelate.

    9. College of Business Administration Texas A&M University-Kingsville 4. Develop the new system System is developed during this phase by the programmer or programming team Major component is the: Program Development Cycle - PDC

    10. College of Business Administration Texas A&M University-Kingsville PDC Step 1: Review the input, processing, output and storage requirements. No Assumptions UNDERSTAND THE PROBLEM.

    11. College of Business Administration Texas A&M University-Kingsville PDC Step 2: Develop the logic for the program Program Flowchart Pseudocode Hierarchy chart Modularization Procedure Oriented Design Object Oriented Design

    12. College of Business Administration Texas A&M University-Kingsville Primary Flowchart Symbols

    13. College of Business Administration Texas A&M University-Kingsville Problem. . . We wish to read an employees payroll data, determine the gross pay, calculate the deductions, determine the net pay, and issue an appropriate pay check.

    14. College of Business Administration Texas A&M University-Kingsville Program Flowchart and Pseudocode

    15. College of Business Administration Texas A&M University-Kingsville Modularization

    16. College of Business Administration Texas A&M University-Kingsville PDC Continued Step 3: Write the program using a programming language, i.e., convert the design into a series of programming steps. Procedure Oriented Language - How Pascal, Cobol, Assembler, Fortran, etc Fourth Generation Language - What database, spreadsheets, word processors, etc Event Driven Programming - Event Response Visual Basic, Visual C++, etc Object Oriented Programming - Classes and Objects Java, C++, etc

    17. College of Business Administration Texas A&M University-Kingsville PDC Continued Step 4: Test and debug the program The process of resolving problems in the program Two Major kinds of errors Syntax Logic Unit testing Systems testing or Integration testing

    18. College of Business Administration Texas A&M University-Kingsville PDC Continued Step 5: Complete the program documentation Extremely important Should be an on-going process Pull it all together Document for the Programmer that follows you

    19. College of Business Administration Texas A&M University-Kingsville 5. Implement the new system Provide user training Develop operating procedures Decide upon implementation strategy

    20. College of Business Administration Texas A&M University-Kingsville 7. Evaluate the new system Run system and determine if it is doing what it is supposed to do Modify as necessary Prepare report

    21. College of Business Administration Texas A&M University-Kingsville Structured Programming A way of programming that uses only three basic patterns of logic Referred to as control structures Basic control structures Simple sequence control structure IFTHENELSE control structure Selection DOWHILE control structure Iteration

    22. College of Business Administration Texas A&M University-Kingsville 1. Proceed North on Western Street for two miles. 2. Turn East on University Avenue. 3. Proceed on University Avenue for three blocks, to Washington Street. 4. Turn North at Washington Street. 5. Proceed two blocks. 6. House is on the left (1600 Washington Street)

    23. College of Business Administration Texas A&M University-Kingsville Simple Sequence

    24. College of Business Administration Texas A&M University-Kingsville 1. Proceed North on Western Street for two miles. 2. Turn East on University Avenue. 3. Proceed on University Avenue for three blocks, to Washington Street. 4. IF North turn at Washington Street is blocked THEN Continue East on University Avenue five blocks. Turn North at Clifton Avenue. Proceed three blocks. Turn West at Circle Drive. Proceed five blocks. Turn South at Washington Street. House is on the right (1600 Washington Street). ELSE Turn North at Washington Street. Proceed two blocks. House is on the left (1600 Washington Street)

    25. College of Business Administration Texas A&M University-Kingsville IFTHENELSE Structure

    26. College of Business Administration Texas A&M University-Kingsville Wash hair Rinse Repeat

    27. College of Business Administration Texas A&M University-Kingsville 1. Wash hair 2. Rinse hair 3. Repeat from Step 1 Infinite Loop

    28. College of Business Administration Texas A&M University-Kingsville DOWHILE Loop DOWHILE hair is not clean Wash hair Rinse hair ENDDO Loop

    29. College of Business Administration Texas A&M University-Kingsville DOWHILE Structure

    30. College of Business Administration Texas A&M University-Kingsville Thats all, folks!

More Related