Enterprise Resource Planning Systems in a Manufacturing Company 1.1.Enterprise resource planning systems - research areas 1.2.ERPasanasset 1.3.ERP implementation as an investment project - assessment methods 1.4.Supporting decision making in ERP systems Objective and Thesis 2.1.Objective 2.2.Thesis 2.3.The main problem 2.4.Scope A Model for an Engineering to Order Production Company 3.1.Company modelling - review 3.2.Model of an engineer to order production company 3.3.Models of data flow in functional areas 3.4.The ERP system model dedicated to an engineer to order company 3.5.Measures for assessing the ERP system Case Study: Implementing ERP Systems in Enterprises Executing Engineer to Order Production 4.1.Case study as a research method 4.2.ERP system data analysis and economic analysis 4.3 Case study - the Alpha Company 4.3.1.The analysis of Alpha's economic data 4.3.2.Alpha's economic indicator analysis 4.3.3.Alphas ERP data analysis 4.3.4.Alphas economic indicators and ERP data analysis summary 4.4.Case study - the Beta company 4.4.1.Betas economic data analysis 4.4.2.Betas economic indicators analysis 4.4.3.Betas ERP system data analysis 4.4.4.Summary of economic indicator analysis and ERP data analysis in Beta 4.5.Case study - the Gamma company 4.5.1.Gammas economic data analysis 4.5.2.Economic indexes analysis of enterprise Gamma 4.5.3 Data analysis from Gamma enterprise's ERP system 4.5.4. Summary of economic indexes and data from ERP system in Gamma company 4.6.Case study - Delta company 4.6.1.Delta company's economic data analysis 4.6.2.Economic indexes analysis for Delta enterprise 4.6.3.Data analysis from Delta company's ERP system 4.6.4.Summary of analysis of economic indexes and data from Delta company's ERP system 4.7.Benchmarking analysis Evaluation Methods of ERP System's Implementation 5.1.Statistic methods of data analysis 5.2.Economic indexes correlation and ERP system data analysis 5.3.Methods of evaluation for ERP systems implementation in production enterprise 5.4.The criteria of the ERP system evaluation in FI area - Marketing and customer relationship management 5.5.The evaluation criteria of the ERP system in the F2 area – Sale and distribution 5.6.The evaluation criteria in the F3 area - Technical preparation of the production 5.7.The criteria of the ERP system evaluation in the F4 area – Planning and production control 5.8.The criteria of the ERP system evaluation in the F5 area – Production and products assembly 5.9.Evaluation criteria for ERP system in area F6 - Supplies logistic and cooperation 5.10.Evaluation criteria for ERP in area F7 - Materiał management and warehousing 5.11.Criteria for ERP initiation in area F8 -Tool management and repair 5.12.Efficiency evaluation index for ERP initiation in an enterprise realizing engineer to order production Methodology of Improving the ERP System in an Enterprise Executing Engineer to Order Production 6.1.The survey of ERP system endusers 6.2.Business processing improvement propositions in area F3 -Technical production preparation 6.3.Improving business processing in F5 - Production and product assembly -propositions 6.4.Improving the efficiency of business processing in F7 - Materiał management and warehousing - propositions 6.5.Methodology of improving the ERP system