Classic model of cost of software quality which indicates success cost of control cost. It is incurred to prevent or avoid quality problems. These costs are associated with the design, implementation, and maintenance of the quality management system. They are planned and incurred before actual operation, and they consist of 3 parts:

Quality planning—creation of plans for quality, reliability, operations, production, and inspection

Quality assurance—creation and maintenance of the quality system

Process planning:

Process capability studies, inspection planning, and other activities associated with the manufacturing and service processes.

Devices support : template checklist

Ex:software quality metric

Software configuration management

Training—development, preparation, and maintenance of programs

Training:

Preparing and conducting quality-related training programs. Conducting training on company procedures, specification and inspection activities

New-products review:

This inlcudes design review, reliability engineering, risk assessment, FMEA, Design of Experiements and other quality-related activities associated with the launching of new design.

Product or service requirements—establishment of specifications for incoming materials, processes, finished products, and services

Quality audits:

Evaluating the execution of activities in the overall quality plan. Read more on Quality Audits here.

Supplier quality evaluation:

Evaluating supplier quality activities prior to supplier selection, and auditing the activities during the contract

Process control:

In-process inspection and test to determine the status of the process (rather than for product acceptance). This includes SPC, Anova Studies and guardbanding.

Ex: internal reviews, external audit n management quality services reviews