MSIS 630 Week 13 System Implementation and Support
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MSIS 630: Week 13 System Implementation and Support 10/2/2020
Class 13: System Implementation • System Implementation • System Support • Broadway Entertainment Co. Inc. , Case – Group Discussion
What is Systems Implementation? • Systems implementation is the construction of the new system and the delivery of that system into production (meaning day-to-day operation).
System Implementation • Seven major activities – – – • Coding Testing Installation Documentation Training Support Purpose – – – To convert final physical system specifications into working and reliable software To document work that has been done To provide help for current and future users
Software Application Testing w The purpose of the testing is confirming that w w the system satisfies requirements Testing must be planned Types of Testing Test Case Acceptance Testing by Users Alpha Testing Beta Testing
Types of Testing – There are three levels of testing to be performed: stub testing, unit or program testing, and systems testing. • Stub testing is the test performed on individual modules, whether they be main program, subroutine, subprogram, block, or paragraph. • Unit or program testing is a test whereby all the modules that have been coded and stub tested are tested as an integrated unit. • Systems testing is a test that ensures that application programs written in isolation work properly when they are integrated into the total system.
Planning Installation • Considerations – Data conversion • Error correction • Loading from current system – Planned system shutdown – Business cycle of organization
Conversion • Prepare a detailed conversion plan to provide a smooth transition from the old system to the new system. • Convert to the new system from the old system and evaluate the project experience and final system.
Train System Users • Provide training and documentation to system users to prepare them for a smooth transition to the new system.
What is Systems Support? • Systems support is the on-going maintenance of a system(s) after it has been placed into operation. This includes program maintenance and system improvements. • Systems support often requires developers to revisit activities typically performed in systems analysis, design, and implementation.
The Year 2000 and Systems Support • The year 2000 problem was the potential of triggering widespread computer application disasters across many corporations.
