is ye 3104 lecture 02

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ISyE 3104 Fall 2014 © Georgia Tech, 2014 1 KPI: Key Performance Indicators MEASURING SYSTEM PERFORMANCE

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ISYE 3104 Lecture 2

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  • ISyE 3104 Fall 2014 Georgia Tech, 2014 1

    KPI: Key Performance IndicatorsMEASURING SYSTEM PERFORMANCE

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 2

    Content Context: Enterprise financial performance

    Income statement and EBITDA Balance sheet and RONA

    Operational KPIs Resource focused Flow focused System focused

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 3

    Brief financial background Income statement and EBITDA

    Balance sheet and RONA

    Ultimately, the success of the enterprise is seen in its financial reports, and sustained success requires enterprise leadership to pay attention to the financials. The goal of this short module is not to become a financial expert, but to understand how operational results contribute to financial results.

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 4

    Income Statement

    Net Income

    Tax

    Other Income

    ExtraGains or Losses

    Interest Expense

    Net Sales

    Cost of SalesOperating

    Expense (SG&A)

    Depreciation Expense

    Income = Revenue Expense

    Net IncomePre-tax

    Operating Income

    Gross Income

    Summarizes financial transactions over a period of timea month, a quarter, or a year. Close the books to create the income statement.

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 5

    EBITDA

    EBITDA = Earnings before interest, taxes, depreciation, and amortization

    Thought by many to be a more informative assessment of the enterprises performance in terms of generating revenue; interest is a financing outcome, not an operating outcome; taxes are beyond the control of the enterprise, depreciation is not a cash flow, nor is amortization.

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 6

    Computing EBITDAEBITDA = Net Income Before Taxes Interest - Depreciation

    Net Income

    Tax

    Other Income

    Extr. Gains or Losses

    Interest Expense

    Net Sales

    Cost of SalesOperating

    Expense (SG&A)

    Depreciation Expense

    Net IncomePre-tax

    Operating Income

    Gross Income

    NB: this example doesnt include amortization, but it would be treated like an interest expense

    QualityDelivery

    FacilityEquipment

    Direct costs: Labor Material & partsIndirect Costs Allocated

    overhead Utilities Supervision etc

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 7

    Balance Sheet

    Shareholder Equity

    Receivables

    Inventory

    OtherCurrent Assets

    Non-Current Assets

    Assets = Liabilities + Equity

    Total Assets

    Cash and Market Securities

    Current Liabilities

    Total Liabilities

    InvestmentsOther

    Net Property & Equipment

    Accts Payable

    Other

    Notes Payable

    Other

    Long term debtNon-Current Liabilities

    The Balance Sheet is a snapshot at a point in time (immediately after closing the books). Two consecutive balance sheets show how assets, liabilities and shareholder equity have changed during the accounting period.

    Current: Easier to convert to cash

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 8

    RONA

    RONA = Return on Net Assets, or Net Income/(Fixed Assets + Working Capital)= Net Income/(Fixed Assets + Current Assets Current Liabilities)

    RONA is viewed as a measure of how well the enterprise managers are using the enterprise resources. If RONA is low, the managers should liquidate some of the resources and return the money to the owners, who can invest it elsewhere (with a higher RONA).

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 9

    Computing RONA

    RONA = Net Income

    Fixed Assets + Current Assets Current Liabilities FacilityEquipment

    QualityDelivery

    Direct costs: Labor Material &

    partsIndirect Costs Allocated

    overhead Utilities Supervi

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 10

    Why is this important?RONA and EBITDA are typical of the financial metrics ultimately used to judge enterprise performance

    Its a good idea to have alignment between operational performance metrics and the metrics that drive enterprise level decisions

    In practice, you will need to be able to explain how a particular operational metric relates to the enterprise level financial metrics

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 11

    Operational KPI Resource focused

    Tell something about how resources are used or the condition of resources

    Flow focused Tell something about the flow, e.g., its properties or flow results compared to expectations

    System focused Combine information about resources and information about flow An important category is productivity measures, which are always of the form,

    productivity = (units of output)/(unit of resource) Issue: there are several categories of resource (labor, machines, space, etc) so which productivity metric is the right one? No single productivity metric is adequate by itself

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 12

    Resource focused KPI

    Provides information about the condition or use of resources, which include facilities (space), equipment, and people.

    Examples:

    Doctors: clinic hours per day (daily, average)Patient rooms: percent of time occupiedX-ray machines: # exposures since last maintenance;

    exposures per day (daily, average)Waiting room: number of patients (at specific times, daily

    maximum, daily average, )

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 13

    Warehouse resource focused KPI

    Examples:

    A-frame: fraction of slots utilized (daily, average, max, ); mispicks (per hour, daily, average, )

    Flow rack: fraction of facings utilized (daily, average, max); inventory capacity utilization (daily, max, min, average)

    Conveyor: % misreads (daily, average, max, min, ); # jams (daily, average, max, min, )

    Pickers: paid hours (daily, average, individual, department, ); error rate (daily, average, individual, department, )

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 14

    Flow focused KPI

    Provides information about flow properties or about flow properties relative to expectations.

    Examples:

    Number of patients seen per day (by specialty, total, daily, average, )

    Patient arrival rate (by specialty, total, by hour, average, max, min, )

    Distribution of waiting time (by step in process flow, by specialty, average, max, min, )

    % of patients with total flow time less than 60 minutes (by specialty, average, )

    NB: Customers dont care about your resource focused KPI, but they certainly do care about flow focused KPI!

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 15

    Warehouse flow focused KPI

    Examples:

    Orders shipped (daily, average, max, min, by customer type, by carrier, )

    Lines picked (daily, average, max, min, by department, by product family, )

    Items picked (daily, average, max, min, by department, by product family, )

    Contain flow rate from A-frame to fast pick (by hour, hourly average, daily average, max, min, )

    Order fill rate (daily, average, max, min, by department, )% orders shipped same day% orders shipped within 24 hours

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 16

    System focused KPI

    Combines information about resources and about flows. Examples:

    Number of patients seen per doctor per day (by specialty, total, daily, average, )

    Patient arrival rate (by doctor, total, by hour, average, max, min, )

    Exposures per x-ray machine (daily, average, max, min, )Number of patients see per mid-level per day (daily,

    average, max, min, )

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 17

    Warehouse system focused KPI

    Examples:

    Orders shipped per labor hour (daily, average, max, min, by customer type, by carrier, )

    Lines picked per labor hour (daily, average, max, min, by department, by product family, )

    Items picked per labor hour (daily, average, max, min, by department, by product family, )

    (Earned hours)/(paid hours) (Error rate)/((Earned hours)/(paid hours))(Order fill rate)/(average inventory level)

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 18

    KPIs are an important tool, but They can distort behavior (people respond to rewards and punishments)

    No one KPI can give the whole story Beware of sub-optimizing, i.e., focusing on one particular productivity can lead to unanticipated

    (negative) outcomes (optimizing the A-frame overloads the slow pick conveyor, resulting in a backup that stalls the A-frame)

    There can be conflicting goals, and these result in dueling KPI

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 19

    Goods Reception

    Goods Storage Assembly Packaging

    Finished Products Handling

    Picking Delivery

    Appliances Manufacturer

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 20

    Conflicting Operational KPIs in our manufacturing exampleProcurement wants:

    Flexible and little variation in delivery time Little variation in mix Large order quantities

    Production/Assembly wants: No setups High throughput (productivity)

    Warehousing wants: Low inventory Quick picking and replenishment capability

    Sales and Marketing want: Large inventory in stock High product variety

    What does the consumer want?

  • Wallace J. Hopp, Mark L. Spearman, 1996, 2000 www.factoryphysics.com

    Hierarchical ObjectivesHigh

    Profitability

    LowCosts

    Low UnitCosts

    High Throughput

    Less Variability

    High Utilization

    LowInventory

    QualityProduct

    HighSales

    Many products

    Fast Response

    MoreVariability

    High Inventory

    LowUtilization

    ShortCycle Times

    High CustomerService

    21

  • ISyE 3104 Fall 2014 Georgia Tech, 2014 22

    Whats next? Process mapping tools that are useful for understanding and analyzing material flow systems

    Some team collaboration tools that are useful in almost any setting

    KPI: Key Performance IndicatorsContentBrief financial backgroundIncome StatementEBITDAComputing EBITDABalance SheetRONAComputing RONAWhy is this important?Operational KPIResource focused KPIWarehouse resource focused KPIFlow focused KPIWarehouse flow focused KPISystem focused KPIWarehouse system focused KPIKPIs are an important tool, butSlide Number 19Conflicting Operational KPIs in our manufacturing exampleHierarchical ObjectivesWhats next?