IT Implementation Flashcards
What is involved in a structured approach to systems development
Identify roles and resp.
Est. activities and critical development path
Define project review and approval in development
What are roles in the SDLC? (systems dev life cycle)
IT Steering committee
Lead systems analyst
Systems Analysts app programmers
End users
What does the IT steering committee do?
Review, approve, and prioritze systems dev proposals for development
What does the lead systems analyst do?
Manages dev team and projects.
Direct contact with end users
Resp. for developing overall programming logic and functionaltiy
What do system analysts and app programmers do?
Design, create, and test system/programs/controls in partnership with users
End users
identify problems and often suggest first pass solutions
Cold turkey implementation approach
Sink or swim. Old stops, new starts.
Phased implementation
the system divided into modules that are brought on one line at a time.
Analysis stage
system analysts work with end users to understand and doc biz processes and system requirements. All parties sign off on the requirements definition to signify their agreement with the projects goals and processes at this stage.
Parallel implementation
the new and old systems run concurrently until it is clear that the new system is working properly
Pilot implementation
Users are divided into groups and are trained on the new system one group at a time.
Implementation stage
the process of moving from the old to the new system
What are the stages of the SDLC? systems dev life cycle
Planning and feasibility study Analysis Design Development Testing Implementation Maintenance
What are the functions of a source program library mgmt system (SPLMS)?
Store programs in the source program library (SPL)
Retrieve programs for updating and maintenance.
Delete obsolete programs
Audit trail - document program changes
What type of documentations would a computer operator use to determine how to set up and run a specific computer app?
run manual - instructions for the comp operator on the use of the program
What document would be most useful to an untrained user to learn how to correct data errors in a database?
user documentation
What is an example of an app input control?
an edit check
What does a source code comparison program do?
it compares an archived version of the program to the program actually in use (to verify that the program is free of unauthorized changes)
What is a record count?
a count of the number of records in a BATCH
What controls are found in a batch processing system?
Financial control totals
Check Digits
Limit checks
What does a validity check do?
compares the value entered in a field to a list of valid data values, an error msg is displayed if the value is not found on the list.
what does a reasonableness check?
that dates are entered correctly - April 31 (not 30 days in april)
That hourly rates make sense (1,800 salary accidentally entered as an hourly rate)
What is key verification used to confirm?
the accuracy of password
Closed loop verification
causes additional information about a data entry field to be displayed
