112 risk- metrics for risk reduction

40
[email protected] .uk htt://www.construction-productivity.co.uk RISK REDUCTION-DEFINING AND IMPLEMENTING METRICS

Upload: dr-fereidoun-dejahang

Post on 13-Feb-2017

38 views

Category:

Engineering


12 download

TRANSCRIPT

Page 1: 112 risk- metrics for risk reduction

[email protected]://www.construction-productivity.co.uk

RISK REDUCTION-DEFINING AND IMPLEMENTING METRICS

Page 2: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS -FOR RISK REDUCTION

There three types of project metrics:1. Predictive metrics: forward-looking,

based on expectations.2. Diagnostic metrics: drawn from

current project status, throughout the work

3. Retrospective metrics: backward-looking, derived from results.

Page 3: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS- FOR RISK REDUCTION

Metrics related to discovery and minimization of risk;

directly relate to the project leader’s goal.

How people choose to work greatly affects the risks that a project faces.

Page 4: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION staff motivation and project progress; Metrics that improve the quality of

project decision-making; also contribute to lower overall risk. Risk is present whenever project

objectives are unrealistic. Often managers ask you to do more.

Page 5: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION

Useful metrics always have threeproperties, they:1.1. Support larger objectivesSupport larger objectives2.2. Influence behaviourInfluence behaviour3.3. Assist good decision-makingAssist good decision-making

Page 6: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION

Predictive project metrics Predictive project metrics serve as a

distant early warning system for project risk.

They are primarily based on speculative rather than empirical data.

It is generally the least precise of the three types.

Page 7: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION

Predictive project measures, supportrisk management in a number of ways: Determining project scale; Identifying the need for risk

mitigation; other project plan revisions.

Page 8: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION

Determining situations that require contingency planning.

Justifying schedule and budget reserves.

Supporting project portfolio decisions and validating relative project priorities.

Page 9: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION

Diagnostic project metricsProject leaders too often

find themselves in major difficulties due to unpredictable changes during construction work without realizing the shift.

Page 10: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION Diagnostic metrics are designed

to provide real-time information about a system

They serve as a warning device Diagnostic project metrics assess

the current state of an ongoing project.

Page 11: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Risk-related uses include: Triggering risk responses and other adaptive

actions. Assessing the impact of any change may

bring new risks. Giving early warning for potential future

problems. The need to update contingency plans or

develop new ones. Deciding when to modify (or cancel) projects.

Page 12: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION

Retrospective project metrics It determine how well a process worked

after it completes, They are the project environment’s early

warning system. Backward-looking project metrics

assess the overall effectiveness and efficiency of project processes.

Page 13: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Use retrospective project metrics to: Track trends Identify recurring sources of risk Set standards for reserves (schedule

and/or budget) Determine empirical expectations for

“unknown” project risk

Page 14: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Decide when to improve or replace current project processes.

Validate the accuracy of predictive metrics.

Adjust the processes (such as estimating) used to develop them.

Page 15: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Defining metrics for risk management

Consider first the behaviour changes necessary to improve your management of risk.

Minimizing unnecessary changes will help.

If changes become necessary inform Supply Chain ASAP.

Page 16: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

For resource risk arising from cost overruns.

Seeking better data for early estimates will minimize surprises.

Page 17: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

First identify key metrics. List any behaviour changes that will

affect project risk. Brainstorm with supply chain.

Page 18: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION The number of activities added to the

project after setting the baseline will carry risk.

Anticipate in advance what are does risks.

For estimation accuracy, a possible metric might be “Cumulative difference between estimated and actual costs of completed project work.

Page 19: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTIONExamples of predictive project metrics project size/scale risk; project duration (elapsed calendar time); total effort (sum of all activity effort estimates); total cost (budget at completion); size-based deliverable analysis (component

counts, number of major deliverables, lines of non-commented code, blocks on system diagrams);

Page 20: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION Staff size (full-time equivalent and/or total

individuals); Number of planned activities; Total length (sum of all activity durations if

executed sequentially); Logical length (maximum number of activities on

a single network path); Logical width (maximum number of parallel

paths).

Page 21: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

Scope risk Project complexity Interfaces algorithmic assessments technical or architecture analysis Volume of anticipated changes.

Page 22: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS Schedule risk Activity duration estimates compared with

worst-case duration estimates. Number of critical (or near-critical) paths in

project network. Logical project complexity. The ratio of activity dependencies to

activities.

Page 23: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Maximum number of predecessors for any milestone.

Total number of external predecessor dependencies.

Project independence (ratio of internal dependencies to all dependencies).

Page 24: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Total float (sum of total project activity float).

Project density (ratio of total length to total length plus total float).

Page 25: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

Resource risk Activity cost (or effort) estimates

compared with worst-case resource estimates.

Number of unidentified activity owners.

Page 26: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

Number of staff not yet assigned or hired.

Number of activity owners with no identified backup.

Expected staff turnover. Number of geographically separate

sites.

Page 27: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Financial risk—Expected return oninvestment (ROI) Payback analysis; Net present value; Internal rate of return; General risk; Number of identified risks; Quantitative (and qualitative) risk

assessments (severity analysis).

Page 28: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Adjusted total effort (project appraisal) comparing baseline plan with completed

similar projects. adjusting for significant differences.Survey-based risk assessment summarized risk data collected from

project staff. using selected assessment questions.

Page 29: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Aggregated overall schedule risk Or aggregated worst-case duration

estimates.Aggregated resource risk Or aggregated worst-case cost

estimates).

Page 30: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Examples of diagnostic project metricsScope risk Results of tests Inspections Reviews walkthroughs Number and magnitude of approved scope

changes

Page 31: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Schedule risk Key milestones missed; Critical path activity slippage; Cumulative project slippage; Number of added activities; Early activity completions.

Page 32: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Activity closure indexthe ratio of activities closed in the project sofar to the number expected.

Resource risk Excess consumption of effort or funds. Amount of unplanned overtime. All earned value management (EVM)

metrics.

Page 33: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Overall risk Risks added after project baseline

setting. Issues opened and closed. Communication metrics (such as

volumes of email and voicemail). The number of unanticipated project

meetings.

Page 34: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Impact on other projects Risk closure index (ratio of risks

closed in a project divided by an expected number based on history)

Page 35: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Examples of retrospective project metrics Scope risk; Number of accepted changes; Number of defects (number, severity); Actual “size” of project deliverable analysis

(components, lines of non-commented code, system interfaces);

Performance of deliverables compared to project objectives.

Page 36: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Schedule risk Actual durations compared to planned

schedule. Number of new unplanned activities. Number of missed major milestones. Assessment of duration estimation

accuracy.

Page 37: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS FOR RISK REDUCTION

Resource risk Actual budget compared to planned

budget. Total project effort. Cumulative overtime. Assessment of effort estimation accuracy. Life-cycle phase effort percentages. Added staff.

Page 38: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTION Staff turnover. Performance to standard estimates for

standardized project activities. Variances in: Travel; Communications; Equipment; Outsourcing; other expense subcategories.

Page 39: 112 risk- metrics for risk reduction

DEFINING AND IMPLEMENTING METRICS

FOR RISK REDUCTIONOverall risk Late project defect correction effort as

a percentage of total effort. Number of project risks encountered. Project issues tracked and closed. Actual measured ROI.

Page 40: 112 risk- metrics for risk reduction

METRICS FORRISK

REDUCTION

Retrospectivemetrics

backward-looking,derived from results.

Diagnosticmetrics

drawn fromcurrent project

status

Predictive metricsforward-looking

based onexpectations

HIGHRISK

LOWRISK

Useful metricsSupport larger objectives,

Influence behaviour,Assist good decision-making,

Earlywarningsystem

HighProductivity'Handover'

Track trends,Identify recurring

sources of riskSet standards for

reserves (scheduleand/or budget),

Determineempirical

expectations for“unknown” project

risk,ETC

Minimizingunnecessary

changes

Estimatedcost-Actual cost

=plus figure

minus figureLow

Productivity