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This research aims to determine the effect of audit committees,institutional ownership, independent commissioners, size, leverage andprofitability (ROA) to tax avoidance. Dependent variables used inthis study are tax avoidance and Independent Variables used in thisstudy are audit committee, institutional ownership, proportion ofindependent commissioner, size, laverage and profitabiliatas (ROA). Thepopulation in this study are all manufacturing companies listed on theIndonesia Stock Exchange in 2011-2015. The sample selection usingpurposive sampling method with final sample 18 observation data duringthe period of 2011-2015. The type of data used is secondary data taken fromCompany Financial Statement and Company Annual Report. Data analysistechnique used in this research is multiple linear regression analysistechnique with SPSS 20 program application. The results showed that thevariable of institutional ownership, size and profitability (ROA) have aneffect on tax avoidance. While the audit committee, the proportion ofindependent commissioners and laverage have no effect on tax avoidance.The coefficient of determination in this research is 35.8%. Further researchis expected to add the number of samples, extend the study period and addother variables that affect Tax Avoidance such as audit quality for betterresearch results.

The purpose of this research is to examine the effect of job experience, independence, objectivity, integrity, and competence on the quality of audit results at Representatives BPKP of Central Java. Job experience was measured by indicators the length of works as an auditor and the number of inspection tasks are performed. Independence was measured by indicators of independence in programming, in the execution of work, and independence in reporting.Objectivity was measured by indicator, free from conflict of interest and disclosure of factual conditions. Integrity was measured by indicator honesty, courege, prudence, and responsibility that auditors have. Competency was measured by indicator personal quality, general knowledge, and specialized expertise. While quality of audit results was measured by indicator of compliance with auditing standard and quality of examination report. The population of this study is civil servants whose work at Representatives BPKP of Central Java with sample is the civil servants has been following education and training as functional auditor. Data analysis was performed with multiple linear regression model. Test result showed that job experience, independence, and objectivity has no effect on quality of audit result at representatives BPKP of Central Java. While the integrity and competence have influence to quality of audit result at representatives BPKP of Central Java. Key words: job experience, independency, objectivity, integrity, competency, quality of audit result.

Decision Support System couple the intellectual resource of individuals with the capabilities of the computer to improve the quality of decision. It's a computer based support system for management decision makers who deal with semi-structured problem. An integrated decision support system for use in an machine mollen product has been developed. It incorporates a linear Programming model that represents the contribution optimal and optimizes the production water pump and mollen machine. An optimization model is performed using a management scient model called linear programming approach in older to determine media selection. To use this model, the DSS needs ti interface with another software. Mathematical Programming is a technique used in mathematical models, particularly optimization models, to assist in decision making. The Simplex Method is "a systematic procedure for generating and testing candidate vertex solutions to a linear program." (Gill, Murray, and Wright, p. -137) It begins at an arbitrary corner of the solution set. At each iteration, the Simplex Method selects the variable that will produce the largest change towards the minimum (or maximum) solution. The  development of computer programs to be used as Decision Support Systems involves several tasks such as mathematical modeling, technical and data collection and development of a user friendly interface.