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

University of Sunderland CIFM03Lecture 1 2 Coming to Terms with Quality Quality and Information Systems Strategies CIFM03

University of Sunderland CIFM03Lecture 1 3 Quality - Basics Definitions Background (cost, development) Process vs. Product Quality Assurance tasks Reviews Launching QA programmes Quality Assessment

University of Sunderland CIFM03Lecture 1 4 Definitions software - (code, documentation, data) quality, quality assurance.

University of Sunderland CIFM03Lecture 1 5 Quality – Defined “The degree to which a set of inherent characteristics fulfils requirements.” - ISO 9000:2000

University of Sunderland CIFM03Lecture 1 6 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

University of Sunderland CIFM03Lecture 1 7 Quality Assurance (II) coordinated activities providing confidence that quality requirements will be fulfilled - ISO 9000:2000

University of Sunderland CIFM03Lecture 1 8 Software Quality  policy  management system  plan  procedures  standards

University of Sunderland CIFM03Lecture 1 9 Cost of Quality prevention costs appraisal costs internal failure costs external failure costs

University of Sunderland CIFM03Lecture 1 10 Development of Quality Deming, Juran, Ishikawa etc. TQM –kaizen –atarimae hinshitsu –kansei –miryokuteki hinshitsu

University of Sunderland CIFM03Lecture 1 11 Product vs. Process good process = good product? process improvement (CMM)

University of Sunderland CIFM03Lecture 1 12 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

University of Sunderland CIFM03Lecture 1 13 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

University of Sunderland CIFM03Lecture 1 14 REVIEWS STAGE REQTS ANALYSIS SOFTWARE DESIGN CODING TESTING TYPE OF REVIEW SPEC. WALKTHROUGHS DESIGN WALKTHROUGHS CODE WALKTHROUGHS TEST PLAN REVIEW

University of Sunderland CIFM03Lecture 1 15 THE REVIEW TEAM REVIEW LEADER RECORDER PRODUCER REVIEWER(S)

University of Sunderland CIFM03Lecture 1 16 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

University of Sunderland CIFM03Lecture 1 17 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

University of Sunderland CIFM03Lecture 1 18 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.

University of Sunderland CIFM03Lecture 1 19 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

University of Sunderland CIFM03Lecture 1 20 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.

University of Sunderland CIFM03Lecture 1 21 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.