_____ is a step by step description of doing a task.

Question

Accepted Answer

The correct option is 2:

The term that perfectly describes a step-by-step description of a task, especially in the context of work simplification and motion study in Home Science, is the **Process Chart**. A Process Chart is a formal, systematic technique designed for a detailed overall investigation of an entire work procedure from its beginning to its end. It uses a set of standardised graphic symbols (such as a circle for 'Operation,' a square for 'Inspection,' and an arrow for 'Transportation') to record every event that occurs in the completion of a task. This meticulous record includes all actions, movements, storage, and delays in the exact sequence they happen. The primary objective of creating a Process Chart is to establish the current method of work in a comprehensive, sequential manner, which then serves as the analytical foundation to identify and eliminate unnecessary, non-value-adding steps, thereby increasing efficiency, reducing overall effort, and minimising worker fatigue. By providing a descriptive and quantitative record of the full task cycle, the Process Chart is the fundamental tool for developing a more streamlined, economical work method.

The incorrect option is 1:
The **Operation Chart** is a formal technique, but its scope is too narrow to be considered the comprehensive "step-by-step description of a task" overall. The Operation Chart, which is often known as a Two-Handed Process Chart, specifically concentrates on the manual activities of an individual worker. Its function is to detail the synchronous movements of the worker’s left hand and right hand during a short, highly repetitive task cycle. Unlike the Process Chart, it does not typically record the broader activities of the process, such as transportation, permanent storage, or material movement. Instead, it breaks down the *operation* step into much finer, elemental hand movements. Its specific goal is to analyze the efficiency of hand motions, eliminate awkward movements and delays, and ensure a balanced workload between the worker’s two hands for maximum dexterity and speed.

The incorrect option is 3:
The **Pathway Chart**, also commonly referred to as a Flow Diagram or String Diagram, is fundamentally a spatial or visual technique rather than a descriptive list of activities. Its main purpose is to graphically record the *movement* or *path* taken by a worker or material on a scaled floor plan of the work area. This chart uses a line or string to trace the flow, allowing for the measurement of the total distance traveled. While movement is a step in many tasks, the Pathway Chart focuses entirely on the distance and location of that movement. It does not provide the symbolic, sequential description of activities like operations, inspections, and delays, which are the core elements of a task description. Therefore, it is a chart of *flow* or *path*, not the comprehensive *process* of work.

The incorrect option is 4:
The option "All options are wrong" is incorrect because Option 2, the Process Chart, is universally recognised in work study and work simplification as the precise tool for providing a systematic, step-by-step, and comprehensive description of a task. As a valid and accurate answer exists among the choices provided, this general dismissal option cannot be selected.