man-day
Definition
- Noun:
- Unit of work measurement: "man-day" refers to the amount of work that one person can accomplish in a single day. It is a standard unit used in project management, labor estimation, and productivity analysis.
Usage Examples
- (The total labor effort needed was equivalent to 500 days of work by one person.)
- (The work input is quantified as the number of days a single worker spends on tasks.)
Advanced Usage
"man-day equivalent": a metric used to compare the output or cost of labor across different tasks or projects.
- The software development phase was estimated at 200 man-day equivalents. (The effort was calculated as if performed by one person over 200 days.)
"man-day rate": the cost or value assigned to one man-day of labor, often used in budgeting.
- The consultant's man-day rate is $800. (The price for one day of consulting work per person.)
Variants and Related Words
Man-hour (n): the amount of work done by one person in one hour.
- The task took 40 man-hours to finish. (Equivalent to 40 hours of work by one individual.)
Man-year (n): the amount of work done by one person in one year, typically 365 days (or 260 working days).
- The research project required three man-years of effort. (Three people working for one year, or one person working for three years.)
Synonyms
- Work-day: a day spent in labor; often used interchangeably with "man-day" but without gender-specific language.
- Person-day: a gender-neutral alternative to "man-day," referring to the same unit of labor.
Related Idioms
- A man-day's work: used to describe a task that takes exactly one day for one person.
- This report is a man-day's work for an experienced analyst. (It requires one full day of effort.)
Phrasal Verbs
- Count in man-days: to measure or estimate labor in terms of man-days.
- We need to count the project in man-days to allocate resources. (Calculate the labor requirement using this unit.)
Notes on Usage
- The term "man-day" is increasingly replaced by "person-day" or "labor-day" in modern contexts to avoid gender-specific language, though "man-day" remains common in technical and historical documents.