Productivity measurement and improvement as an integrated part of the management information systems

Oneof themost problemsfacing productivitymeasurement is ”how to measure the total productivity ofthe firm without measuring all inputs and all outputs”.So, it is important to create a model deals with the dataavailable for every department individually to measurethe total productivity of the firm.In this work, a productivity measurement model isproposednot onlya firm level totalto provideproductivity to indicate the productivity health of the.,..firm, but also to point out the growth or decline inproductivity of the different departments.The model depends on the historical data to measurethe improvement opportunities, but, if there is nohistorical data, or it is difficult to collect thehistorical data, or the historical data is unreliable,the model can’t be used. To overcome these drawbacks, anempirical model (model A) is proposed.Sometimes, according to the firm’s development, theno.of departments(increased/may beQhangeddecreased). Therefore, the proposed model can’t be usedaccordingthese changes. To solve this problem, anempirical model (model B) is proposed to be used untilthe periods of historical data are be equal to the no. ofinput items or the no. of departments which bigger. Then,the proposed model(s) can be reused again.