Course code IST2
Course title Quality Control
Institution Instituto Superior Tecnico Lisboa
Course address IST, Av. Rovisco Pais, 1049-001 Lisbon, PT
City Lisbon
Minimum year of study 3rd year
Minimum level of English Fair
Minimum level of French None
Key words Quality Control, Production methods
Language English
Professor responsible Prof. Miguel Casquilho
Telephone +351 21 8417310
Fax +351 21 8499242
Email mcasquilho@ist.utl.pt
Participating professors Prof. Miguel Casquilho
Number of places Minimum: 10, Maximum: 18, Reserved for local students: 0
Objectives Quality Control is an indispensable aspect of production, in any domain (industry, commerce, services, health, education), and measurement is necessary to verify whether work is correctly done and the customers' expectations are met or exceeded. The basic techniques of Quality Control are presented, preceeded by a reference to the relationship with the customer.
Programme to be followed I. Quality (Q): what it is. Historical evolution: Shewhart, Deming, Juran, Taguchi. Q control and Q management. Certification; standardization.
Continuous improvement. Statistical Q control; interest and application in production and the other activities. Technical, economical and legal aspects.
II. Statistical process control (SPC) (in-process) (a) Control charts. Reference to simulation (Monte Carlo method). (b) Measures of location: X-bar (mean) charts. (c) Measures of dispersion: R (range) charts and s (standard deviation) charts. Usual approximations and the exact charts. (d) p (fraction nonconforming or defective) charts; c (number of nonconforming) charts.
III. Acceptance sampling by "attributes" (discrete variables) (a) AQL (acceptable Q level) and producer's and consumer's risks. (b) Sampling inspection: criteria, sample size determination. (c) The standard MIL-STD-105D and its ANSI/ASQC and ISO equivalents.
IV. Acceptance sampling by "variables" (continuous variables) (a) Goodness-of-fit test; fit to the Gauss distribution. (b) AQL and producer's and consumer's risks. (c) Sampling inspection: criteria, sample size determination. (d) The standard MIL-STD-414 and its ANSI/ASQC and ISO equivalents. (e) Specifications: one, two specification limits.
Prerequisites

General knowledge of mathematics and statistics. Practicing knowledge of PC's, namely Excel.

Course exam Two hour examination, made on PC.
Back