What does turnover mean?

[Turny]

Business English Lesson, Advanced Level

ESL/EFL Test #429 "Enterprise Resource Planning", question 3

During the past several years, many buyers have made system selections to reduce overall systems ownership costs: they standardize on a single technical platform to ease the maintenance ......... and reduce required modifications.

(a) burden
(b) outlet
(c) shift
(d) turnover

Business English Lesson, Advanced Level

ESL/EFL Test #429 "Enterprise Resource Planning", answer 3

During the past several years, many buyers have made system selections to reduce overall systems ownership costs: they standardize on a single technical platform to ease the maintenance burden and reduce required modifications.

Correct answer: (a) burden
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meaning of turnover

[Torsten]

You can read this: What does turnover mean?
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Mister Micawber]

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Turnover = the rate of processing or the amount of material that has undergone a particular process in a given period of time, as in manufacturing. Here, it is the amount or frequency that maintenance is required.
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Native English teacher at Mister Micawber's