University of Sunderland CIFM03Lecture 1 1 Quality Management of IT CIFM03 Introduction.

1University of Sunderland

CIFM03 Lecture 1

Quality Management of IT

CIFM03

Introduction


CIFM03 Lecture 1

Coming to Terms with Quality

Quality and Information Systems Strategies

CIFM03


CIFM03 Lecture 1

Quality - Basics

• Definitions• Background (cost, development)• Process vs. Product• Quality Assurance tasks• Reviews• Launching QA programmes• Quality Assessment


CIFM03 Lecture 1

Definitions

• software - (code, documentation, data)

• quality,

• quality assurance.


CIFM03 Lecture 1

Quality – Defined

“The degree to which a set of inherent

characteristics fulfils requirements.”

- ISO 9000:2000


CIFM03 Lecture 1

Quality Assurance (I)

Juran defined quality assurance, in his Quality Control Handbook, as:

the activity of providing to all concerned the evidence needed to establish confidence that the quality function is being performed adequately


CIFM03 Lecture 1

Quality Assurance (II)

coordinated activities providing confidence that quality requirements will be fulfilled

- ISO 9000:2000


CIFM03 Lecture 1

Software Quality

policy

management system

plan

procedures

standards


CIFM03 Lecture 1

Cost of Quality

• prevention costs

• appraisal costs

• internal failure costs

• external failure costs


CIFM03 Lecture 1

Development of Quality

• Deming, Juran, Ishikawa etc.

• TQM– kaizen

– atarimae hinshitsu

– kansei

– miryokuteki hinshitsu


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Product vs. Process

• good process = good product?

• process improvement (CMM)


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QA activities - part 1

• prepare a SQA plan

• participate in the definition of a project’s (software) development plan (and process model)

• review (software engineering) activities to verify compliance with defined (software) process


CIFM03 Lecture 1

QA activities - part 2

• review selected (software) work products to verify compliance with specifications

• ensure deviations from defined activities and products are documented and handled according to defined procedures

• record any non-compliances

• regularly report to senior management


CIFM03 Lecture 1

REVIEWSSTAGE

REQTS ANALYSIS

SOFTWARE DESIGN

CODING

TESTING

TYPE OF REVIEW

SPEC. WALKTHROUGHS

DESIGN WALKTHROUGHS

CODE WALKTHROUGHS

TEST PLAN REVIEW


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THE REVIEW TEAM

• REVIEW LEADER

• RECORDER

• PRODUCER

• REVIEWER(S)


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REVIEWER PREPARATION

• Be sure you understand the CONTEXT

• Skim all the product material to understand the

location and format of the information

• Read the product material and annotate

• Pose comments as questions

• Avoid issues of style

• Inform the review leader if you can’t prepare


CIFM03 Lecture 1

CONDUCTING THE REVIEW

• Evaluate the product before the review

• Review the product, not the producer

• Keep the tone mild, ask questions instead of making accusations

• Stick to the review agenda

• Raise issues - don’t resolve them

• Avoid discussion of style - stick to technical correctness

• Schedule reviews as project tasks

• Record and report all review results


CIFM03 Lecture 1

Humphrey says:

The people responsible for the software projects are the only ones who can be responsible for quality……..

The role of SQA is to monitor the way these groups perform their responsibilities.


CIFM03 Lecture 1

Launching a SQA Programme

• initiate the programme• identify the issues• write the plan• establish standards• establish the function• train and promote• implement the plan• evaluate the programme


CIFM03 Lecture 1

Pitfalls:

• it is a mistake to think that SQA people (alone) can do

anything about quality

• the existence of a SQA function does not ensure that the

standard procedures are followed

• unless management periodically demonstrates its support

for SQA, by following their recommendations, SQA will be

ineffective

• unless line management requires that SQA tries to resolve

their issues with project management before escalation,

SQA and development will not work together effectively.


CIFM03 Lecture 1

Quality Assessment

Three types of audit of a quality management system……

• First – self assessment.• Second – assessment by the customer.• Third – by an external, independent

organisation, generally to a national or international standard.

University of Sunderland CIFM03Lecture 1 1 Quality Management of IT CIFM03 Introduction.

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