Copyright Marikit 2012. CMSC 166 Quality Concepts.

…was an American merchant and politician from New York.

JIM MCCALL

…married Elizabeth Dye and had 14 children.

…in November 1836, McCall was elected a presidential elector, but did not attend

the meeting of the New York Electoral College

Copyright Marikit 2012. CMSC 166 Quality Concepts.

…project manager at General Electrics

JIM MCCALL

Copyright Marikit 2012. CMSC 166 Quality Concepts.

Operation - Correctness - Efficiency - Integrity - Reliability - Usability

WHAT IS QUALITY?

Transition - Portability - Reusability

- Interoperability

Revision - Maintainability - Flexibility - Testability

Copyright Marikit 2012. CMSC 166 Quality Concepts.

UsabilityEase of use of software.

Integrity Protection of the program from unauthorized user

access.Efficiency

Concerned with the resources. (ex): Process time, storage.Correctness

The extent to which the program fulfills its specifications.Reliability

Ability not to fail.

PRODUCT OPERATION

Copyright Marikit 2012. CMSC 166 Quality Concepts.

Portability The effort to transfer a program from one

environment to another.

Reusability The ease of using the software in different context.

InteroperabilityIt is the effort required to couple the system to

another system.

PRODUCT TRANSITION

Copyright Marikit 2012. CMSC 166 Quality Concepts.

Maintainability The effort required locating an fixing a fault in the

program with its operating environment.

Flexibility Ease of making changes with its operating

environment.

Testability Ease of testing the program to ensure that it is

error free.

PRODUCT REVISION

Copyright Marikit 2012. CMSC 166 Quality Concepts.

REFERENCES:

BERANDER, PATRIK ET. AL. SOFTWARE QUALITY ATTRIBUTES AND TRADE-OFFS, BLEKINGE INSTITUTE OF TECHNOLOGY, 2005

HOYER, R. W. AND HOYER, B. B. Y. WHAT IS QUALITY?, QUALITY PROGRESS, NO. 7, PP. 52-62, 2001.