To determine the proportion of time workers spend on different defined categories of activities.
- المنهجيات: الهندسة, تصميم المنتج, إدارة المشاريع
Work Sampling

Work Sampling
- التحسين المستمر, الكفاءة, التصنيع اللين, الإنتاج المرن, تحسين العمليات, الإنتاجية, تخطيط مسار القيمة
الهدف:
كيفية استخدامه:
- Observers make random observations of workers at different times and record the activities they are engaged in. The percentage of observations in each category provides an estimate of the time spent on those activities.
الإيجابيات
- Relatively inexpensive and less disruptive than continuous observation; can provide a good overview of how time is distributed across various tasks; useful for setting staffing levels or identifying inefficiencies.
السلبيات
- Accuracy depends on the number of observations and the randomness of the sampling times; does not provide detailed information about work methods or performance on specific tasks; potential for observer bias.
الفئات:
- بيئة العمل, التصنيع, إدارة المشاريع
الأفضل لـ
- Determining the proportion of time spent by workers on various activities to improve efficiency or set standards.
Work Sampling is particularly effective in industries such as manufacturing, healthcare, logistics, and service sectors, where understanding the allocation of time across various activities can significantly enhance operational efficiency. This methodology is often employed in the project phases of process improvement, work measurement, and resource allocation to identify inefficiencies or optimize workflows. Initiation typically comes from management or process improvement teams, including industrial engineers, operations managers, or even quality assurance professionals who seek to assess productivity levels. Participants in this methodology include workers across different job functions, as random observations of their activities yield valuable data on how time is spent. For instance, in a manufacturing environment, work sampling can reveal whether operators are spending excessive time on rework or setup activities, thus informing decisions on training or equipment investments. In healthcare, this method can assess how much time caregivers allocate to patient interactions versus administrative tasks, leading to redistributions of responsibilities or staffing changes. Work sampling provides a snapshot view, and with its less intrusive nature compared to continuous monitoring, it respects workers’ privacy while effectively gathering necessary data. The simplicity of implementation, combined with the ability to execute the observations across various shifts and conditions, makes it a versatile tool for organizations aiming to set realistic performance standards and improve overall productivity.
الخطوات الرئيسية لهذه المنهجية
- Define the categories of activities that need to be observed.
- Determine the time frame and intervals for making random observations.
- Conduct observations at predetermined random times throughout the observation period.
- Record the specific activity each worker is engaged in during each observation.
- Calculate the percentage of total observations for each activity category.
- Analyze the data to identify trends and areas for improvement.
نصائح للمحترفين
- Utilize stratified sampling to ensure diverse representation of roles and tasks, reducing bias in activity assessment.
- Incorporate time-triggered observations during peak operational periods to capture realistic work patterns and fluctuations.
- Use data analytics tools post-observation to quantitatively analyze findings, identifying trends and anomalies for deeper insights.
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منشورات ذات صلة
استبيانات الانزعاج العضلي الهيكلي
الاختبار متعدد المتغيرات (MVT)
تحليل الانحدار المتعدد
أنظمة التقاط الحركة
طريقة MoSCoW
اختبار متوسط المزاج