RSM427H1 Lecture Notes - Lecture 4: Feasibility Study, Data Conversion, Unit Testing
Lecture 4 it general controls: system development controls i. Types of software: open source, available for free, anyone can modify, flexible, may not meet needs, proprietary, provided by a vendor at a cost, vendor modifies, more expensive, vender supposedly has more expertise. In-house developed: coded by the company itself, company can make changes, more potential for bugs, may cost more. Intangible cost: workers less efficient, people not like the new system. Integration/string: separate individual: uat: user acceptance testing, done by users themselves, stress: to make sure can do the volume of testing by users, policies and procedures, training, conversion and implementation (system implementation system conversion) Install production infrastructure: conversion approaches: the process of taking information from an old system to populate a new system. Identification of sources and targets: data mapping, development of conversion programs, sanitization of input data, test/mock conversions, and reconciliations.