Lean Six Sigma Process

Everything! Any activity, process or procedure that transforms a number of input (s) into a number of output (s).

VOP = Voice of Process

VOB = Voice of Business

VOC = Voice of Customer

Non-Value-Added/ Value-Added Analysis (NVAA)

Example 1: Processing a lab test

This example focuses on the process of taking a blood sample and generating a lab report.

Inputs (
$cap X$
)

These are the resources and information required to perform the process.

Patient information: Demographics, medical history, and specific test orders from the physician.
Physical resources: Sterile syringes, needles, collection tubes, labeling materials, and the lab's analytical equipment.
Personnel: Trained phlebotomists to draw the blood, lab technicians to analyze the sample, and pathologists to verify the results.
Procedures: Standard operating procedures (SOPs) for blood collection, handling, analysis, and quality control.

Process (
$f$
)

This is the series of steps that transforms the inputs into the desired output.

Patient registration and sample collection: Patient arrives, verifies their identity, and a blood sample is drawn.
Sample preparation: The blood sample is labeled correctly and prepared for transport to the lab.
Analysis: The lab technician uses specialized equipment to perform the required tests on the blood sample.
Result interpretation: A qualified pathologist reviews the results, noting any abnormalities.
Report generation: The final report is compiled and delivered to the requesting physician and patient.

Outputs (
$cap Y$
)

This is the product or service delivered by the process.

Accurate lab report: A document containing the patient's test results, verified by a pathologist.
Timely delivery: The report is provided within the expected turnaround time.
Patient satisfaction: The patient has a positive experience during the collection process and receives their results in a timely manner.

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