System lifecycle

12.1 12. APPROACHES TO SYSTEMS-BUILDING

CONTENTS ,[object Object],[object Object],[object Object],12.3

SYSTEM LIFECYCLE ,[object Object],[object Object],[object Object],[object Object],[object Object],12.4

SYSTEM LIFECYCLE ,[object Object],[object Object],[object Object],[object Object],12.5

SYSTEM LIFECYCLE ,[object Object],[object Object],[object Object],[object Object],[object Object],12.6

ALTERNATIVE SYSTEM-BUILDING APPROACHES ,[object Object],[object Object],[object Object],[object Object],[object Object],12.7

PROTOTYPING ,[object Object],[object Object],[object Object],[object Object],12.8

STEPS IN PROTOTYPING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],12.9

APPLICATION SOFTWARE PACKAGES ,[object Object],[object Object],[object Object],12.10

SELECTED EXAMPLES OF APPLICATION PROGRAMS ,[object Object],[object Object],12.11

CUSTOMIZATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],12.12

EFFECTS OF CUSTOMIZING SOFTWARE ON TOTAL IMPLEMENTATION COSTS 12.13 0 2 4 6 8 10 0.5 1 2 3 4 5 % LINES OF CODE CONVERTED TOTAL IMPLEMENTATION COSTS

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],REQUEST FOR PROPOSAL (RFP ) Source: Senn, Information Technology in Business (1995) 12.14

END-USER DEVELOPMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],12.15

END-USER DEVELOPMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],12.16

END-USER DEVELOPMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],12.17

MANAGING END-USER DEVELOPMENT ,[object Object],[object Object],[object Object],[object Object],12.18

OUTSOURCING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],12.19

OUTSOURCING ,[object Object],[object Object],[object Object],[object Object],12.20

12.42 12. APPROACHES TO SYSTEMS-BUILDING

System lifecycle

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System lifecycle