13. Prototyping process of building experimental system to demonstrate, evaluate approach. an iterative process best for design of end-user interface
14.
15. Application Software Packages prewritten, precoded application software, commercially available for sale/lease customization geared to common requirements
16. Modifying Software Package to meet organization’s unique requirements without destroying the integrity of package Application Software Packages Customization Raises Development Cost
17. Effects of Customizing Software on Total Implementation Costs Application Software Packages 0 2 4 6 8 10 0.5 1 2 3 4 5 % LINES OF CODE CONVERTED TOTAL IMPLEMENTATION COSTS
18.
19. End-User Development end-users develop information system with little help from technical specialists using 4 th generation tools
29. PROGRAM FLOWCHART SYMBOLS: BEGIN OR END DIRECTION PROCESS DECISION INPUT OR OUTPUT SUBROUTINE MANUAL OPERATION CONNECTOR
30. PROGRAM FLOWCHART: PROCESS A PROCESS B SEQUENCE PROCESS C PROCESS D R TRUE SELECTION PROCESS E S TRUE ITERATION
31. This flowchart shows the software development cycle. You basically design the system, code it and test it. When an error is found, it must be determined whether the error is a design error or not. Coding errors can quickly be fixed, but design errors may take longer.