Chapter 13: Maintenance Management Information Systems

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Chapter 13 Maintenance Management Information
Systems

• Overview
• MMISs
• MMIS Modules
• Evaluation of MMISs
• Evolution of MMIS for Effective Maintenance

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Maintenance Management Information Systems

• Functions
• Support the main activities in the maintenance
  process
• Equipment identification and BOM
• Preventive maintenance
• Work order management
• Planning and scheduling
• Inventory control purchasing
• Labor and job standards
• Equipment history
• Costs and budgets
• Performance reports
• Quality reports
• Software and hardware configuration reliability,
  ease of use, quality of information, timely
  processing

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MMIS Modules

• Equipment Management
• Work Order Control
• Crafts Management
• Material Supply and Control
• Performance Reporting

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MMIS Structure
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Equipment Management Module

• Provide information equipment identification,
  location, installation date, status, technical
  information, etc.
• Application
• Tract lubrication and PM
• Generate work orders
• Decision regarding equipment replacement
• Equipment file (attached page)

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Work Order Control Module

• Generate work orders
• Work orders function
• Document the process of work requests
• Authorize the work to be performed
• Planning monitoring, controlling the actual work
• Collect data about maintenance performance and
  costs
• Provide needed information fpr feedback and
  continuous improvements
• Required information for work orders
• Use for planning and scheduling
• For identification

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Work Order Control Module

• Work order control module (attached page) ?
  planning and scheduling
• Job priority and worker codes

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Crafts Management Module

• Keep track craft status ?planner/scheduler
  ?worker availability

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Craftman personal file
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Material Supply and Control Module

• Supply information for planning, scheduling and
  control
• ABC analysis ? classify A items?critical items
  and stock checks when needed?link to purchasing
• Basic functions
• Indicate material availability
• Provide information on ordered materials status
• Delete open purchase orders
• Perform inventory adjustments
• Initiate purchase orders
• Search for work orders waiting for materials and
  changing their status upon material arrival

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Performance Reporting Module

• Cost reports
• Completed work orders
• Backlog report
• Work order status report
• Work order performance report
• Distribution of maintenance wok by priority
• Estimated vs. actual hours report
• Plant availability report
• Plant reliability report
• Quality report

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Maintenance Reporting

• Criteria of a quality report
• Concise, based on actual data, benchmarks
  standards cost figures and budgets
• Periodic, graphical forms, statistical indicators
  and trends analysis
• Include important information
• MMIS should provide most of these reports
• close coordination with the concerned
  departments ? provide interpretation of reports
  content
• Maintenance management should provide feedback on
  the reports and action must be taken to correct
  any mishaps

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Maintenance Reporting

• Content of a report
• Summarize the main accomplishments and problems
  show trends
• Maintenance costs, show trends
• Backlog report and classify according causes
• PM inspection report
• Downtime of major equipment
• scheduled maintenance ? unscheduled status
• Weekly status of all open work orders
• Efficiency reports
• Material and supply reports
• Monthly maintenance budget and variance

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Evaluation of MMISs Systems

• MCDM selection of MMIS
• Total score for a function of a MMIS
• The composite score for a MMIS
• Where i 1,2,, n functions of a MMIS
• j 1,2,, m major characteristics of
  each i
• Wi relative important of function i
• bj relative weights of j
  characteristics
• Sij score for characteristic i and
  function j

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Quality Control management
Functions of MMISs
Vendor evaluation
Worker management
Maintenance Management system software
General considerations
Work order management
Maintenance report
PM management
Inventory management
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Evolution of MMIS for Effective Maintenance

• The additional characteristics for elements of a
  MMIS
• Effective control over maintenance scheduling
• Modeling characteristics such as simulation of
  the maintenance system
• Decision-making and forecasting capabilities
• Modules of MMIS need to be expanded
• Equipment management reliability models,
  predictive maintenance routines, job arrivals
  distribution, etc.
• Work order control data for scheduling models,
  simulation
• Performance reportinginclude measures that
  relate the effect of maintenance policies on
  production and services