En metod som används för lagerstyrning, och som fått ökat intresse inom forskningen de senaste åren, är klassificering med multipla kriterier (MCABC). Däremot har forskningen hittills tenderat att koncentrera sig på utveckling av klassificeringsmodeller snarare än på vägledning för tillämpning av modellerna. Studien påvisade med en litteraturstudie att forskningsområdet klassificering med multipla kriterier hade en begränsad mängd vägledning för tillämpning relativt mängden klassificeringsmodeller som utformats. Därför undersökte studien en modifierad lagerstyrningsstrategi. Syftet med studien var att finna produkter som lämpar sig för lagring av produktionskapacitet och att undersöka effekterna på färdigvarulagret om dessa produkter används för lageruppbyggnad inför säsongen. För att finna sådana produkter utformades en klassificeringsmodell med multipla kriterier, GTS-modellen (Good to Store). Modellen testades genom att ett antal scenarier simulerades på ett urval av produkter av det egentillverkade sortimentet i en fabrik. Detta gjordes i en fallstudie av ett företag inom processindustrin vars sortiment har säsongsvariationer. Resultatet av simuleringarna visade att lageruppbyggnad med GTS-modellen inför säsongen innebar att det genomsnittliga lagervärdet och antalet omställningar för det egentillverkade sortimentet minskade med ungefär 14 % vardera, jämfört med nuläget. Samtidigt kunde servicenivån bibehållas på i princip identisk nivå. Görs motsvarande jämförelse enbart på den simulerade delen av sortimentet blir minskningarna ungefär 35 % vardera. / Multi criteria classification (MCABC) is a method used for inventory management which has gained interest in research in recent years. However, research has tended to focus on the development of classification models rather than guidance on the application of the models. This study demonstrated, using a literature review, that the multi criteria classification field had a limited amount of guidance for application compared to the amount of classification models that were developed. Therefore, this study examined a modified inventory management strategy. The purpose of the study was to find products suitable for storing production capacity and to examine the effects on the finished goods inventory if these products are used for stock build-up prior to the season. A multi criteria classification model, the GTS (Good to Store) model, was developed to find such products. The model was tested by simulating several scenarios on a selection of products from the factory-made range. This was conducted in a case study regarding a company in the process industry whose range has seasonal variations. The simulations showed that stock build-up with the GTS model prior to the season resulted in an approximately 14 % decrease in average inventory value and number of setups for the factory-made range, compared to the current situation. At the same time, the service level was almost completely maintained. If the comparison is made exclusively on the simulated part of the assortment, the decrease will be approximately 35 %.

Магистерская диссертация посвящена разработке методического инструментария, направленного на совершенствование системы управления оборотными средствами на предприятии. В качестве научной новизны выявлена обратно-пропорциональная корреляция между рентабельностью оборотных активов и оборачиваемостью запасов предприятия, а также установлена обратно-пропорциональная зависимость между инфляцией и оборачиваемостью запасов. Автором предложен методический подход к определению потребности в запасах материалов на основе календарного плана-графика, разработаны методические основы для внедрения категорийного подхода к управлению закупками на предприятии. Полученные результаты и рекомендации могут использоваться специалистами предприятий при разработке тактических и стратегических мероприятий по управлению оборотными средствами. / The master's thesis is devoted to the development of methodological tools aimed at improving the working capital management system at the enterprise. As a scientific novelty, an inversely proportional correlation between the profitability of current assets and the turnover of stocks of the enterprise was revealed, and an inversely proportional relationship between the turnover of stocks and inflation was also established. The author has proposed a methodological approach to determining the need for stocks of materials based on a calendar schedule, developed methodological foundations for introduction of a categorical approach to procurement management at enterprise. The obtained results and recommendations can be used by specialists of enterprises in the development of tactical and strategic management measures for working capital.

This thesis work aims to improve the stock management system of Excillum AB, a Stockholm-based company that specializes in high-performance X-ray sources. The current stock management system has limitations, resulting in gaps when managing the inventory. To address this, the study focuses on developing a calculation model that takes into account various factors such as the global supply chain, customer expectations, service offerings, and financial concerns. The research questions revolve around understanding best practices in stock management from other companies, considerations for stock selection and ordering decisions, and additional parameters to ensure accurate safety stock calculations. The research involves carrying out a literature review, benchmarking practices from other organizations, analyzing Excillum's transaction data, and developing a reliable calculation model. However, some limitations exist, such as relying on Excel for calculations rather than changing values within the ERP system, which reduces demand projection accuracy due to high product customization. Human factors and unavoidable supply chain disruptions are not specifically addressed in the recommended approach. The proposed calculation model aims to improve stock management efficiency, ensure product availability, reduce stockouts, and ultimately contribute to Excillum's growth goals while meeting customer demands. Excillum can optimize stock levels and streamline inventory management by incorporating best practices and taking into account critical factors, establishing the way for long-term success and improved customer satisfaction. / Detta examensarbete syftar till att förbättra lagerhanteringssystemet för Excillum AB, ett Stockholmsbaserat företag som är specialiserat på högpresterande röntgenkällor. Det nuvarande lagerhanteringssystemet har begränsningar, vilket resulterar i luckor vid hanteringen av lagret. För att komma till rätta med detta fokuserar studien på att utveckla en beräkningsmodell som tar hänsyn till olika faktorer såsom den globala leveranskedjan, kundernas förväntningar, tjänsteerbjudanden och ekonomiska problem. Forskningsfrågorna kretsar kring att förstå bästa praxis inom lagerhantering från andra företag, överväganden för aktieval och beställningsbeslut och ytterligare parametrar för att säkerställa korrekta beräkningar av säkerhetslager. Forskningen innebär att man genomför en litteraturgenomgång, benchmarking praxis från andra organisationer, analyserar Excillumstransaktionsdata och utvecklar en tillförlitlig beräkningsmodell. Det finns dock vissa begränsningar, som att förlita sig på Excel för beräkningar snarare än att ändra värden inom ERP-systemet, vilket minskar noggrannheten i efterfrågeprojekteringen på grund av hög produktanpassning. Mänskliga faktorer och oundvikliga störningar i försörjningskedjan behandlas inte specifikt i den rekommenderade metoden. Den föreslagna beräkningsmodellen syftar till att förbättra lagerhanteringseffektiviteten, säkerställa produkttillgänglighet, minska lagerutbudet och i slutändan bidra till Excillumstillväxtmål samtidigt som kundernas krav tillgodoses. Excillum kan optimera lagernivåer och effektivisera lagerhantering genom att införliva bästa praxis och ta hänsyn till kritiska faktorer, etablera vägen för långsiktig framgång och förbättrad kundnöjdhet.

M. Tech. (Department of Process Control and Computer Systems, Faculty of Engineering and Technology), Vaal University of Technology. / Radio Frequency Identification Technology (RFID) technology is increasingly being used in multiple applications due to its low cost and ability to provide a high quality of identification. The cost benefit of RFID system is seen in the reduction in labor required to perform routine tasks such as inventory. With RFID, inventory-related tasks can be done in substantially less time compared to other commonly used auto-identification systems. Recent research has illustrated the application of RFID in multiple application scenarios. RFID can be used for real-time patient identification and monitoring in hospitals, but also for product expiration-date management in retail industries. Some enterprises in South Africa uses a combination of RFID technology and Internet of Things (IoT) to detect misplaced products and to detect low stock levels. Furthermore, RFID is also used for inventory management in libraries as discussed in this dissertation. In this dissertation, a combination of RFID and ZigBee technologies was used to reduce the time spent to perform inventory in libraries. An inventory management system was designed, simulated and built in order to count and locate books inside a library hence improving inventory process time in libraries. The overall results were satisfactory which lead to the achieving of the objectives set in this study.

A survey of the field revealed a need for a Confirmatory Factor Analysis of the Personal Orientation Inventory (POI). The two major objectives were to understand the concept of selfactualization and the use of the POI as a measuring instrument. The POI correlation coefficients were used as input data for the computer program, Linear Structural Relations (LISREL), to perform a Confirmatory Factor Analysis. A sample of 495 individuals was used in this research. This sample consisted of both male and female second-year Industrial Psychology students from various race groups. The research concluded that the Root Mean Square Error of Approximation (RMSEA) indicated a poor fit between the empirical model and the empirical reality. This determined that the POI's factor structure could not confirm the theoretical model of selfactualization. It is acknowledged that more research needs to be conducted, taking due consideration of bias variables and cultural diversity. / Industrial and Organisational Psychology / M. Com. (Industrial Psychology)

A survey of literature has revealed that there is a need for a reliability and validity study of the Personal Orientation Inventory in South Africa. The two major objectives of this research where therefore to determine firstly, the test-retest reliability of the Personal Orientation Inventory and secondly, to establish the construct validity, in other words, how well the Personal Orientation Inventory correlates with other measures purporting to measure similar traits. The total sample of 317 individuals used in this research, consisted of both male and female school leavers such as students and national servicemen, ranging in age from 17 to 22 years. The results of this introductory study regarding reliability and validity of the Personal Orientation Inventory in South Africa demonstrated clear support for similar research done overseas and showed to be compatible with the humanistic psychology movement's original concept of self-actualization. / Industrial and Organisational Psychology / M.A. (Industrial Psychology)

Kandidatuppsats i logistik för Civilekonomprogrammet (15 hp) Linnéuniversitetet, 2FE25E, VT16 Författare: Erik Karlsson, Faton Leku & Jeppe Lindström Handledare: Hana Hulthén Examinator: Åsa Gustavsson Titel: Effektivisering av lager för produkter i arbete Bakgrund: Ett tillverkningsföretag har ofta flera varianter av lager som till exempel färdigvarulager, säkerhetslager och produkter i arbete-lager. Produkter i arbete brukar benämnas som PIA. PIA-lagrets utformning är en viktig del för hur flödet i en verksamhet ser ut och fungerar. Syfte: Syftet är att föreslå en förbättrad hantering av PIA-lager för att bidra till ökad effektivisering av internt materialflöde. Metodval: Studien utgår ifrån en kvalitativ fallstudie. Studien utgår ifrån observationer på fallföretaget samt semistrukturerade intervjuer. Slutsatser: Vi kan efter genomförd studie påvisa att det finns skillnader mellan vad som beskrivs i teorin och hur PIA-lagret på Proton Lighting faktiskt ser ut. Det som har påvisats i jämförelsen mellan dessa är att MTO-artikeln är den som prioriteras före MTS-artikeln. Det innebär att lagringskostnaderna för MTS-artiklar automatiskt blir högre då MTO-artiklarna alltid har företräde i produktionen. Det finns inte heller någon fast artikelplacering i PIA-lagren vilket gör att artikelkomponenterna kan placeras var som helst i PIA-lagren, vilket leder till en ökning av de interna transporterna. Nyckelord: Produkter i arbete, lager, lagerlayout, make-to-order, make-to-stock, artikelplacering / Bachelor thesis, Program of Master of Science in Business and Economics School of Business and Economics at Linnaeus University in Växjö 2FE25E, spring 2016 Authors: Erik Karlsson, Faton Leku and Jeppe Lindström Advisor: Hana Hulthén Examiner: Åsa Gustavsson Title: Improving the efficiency of work in process inventory Background: A manufacturing company often has varieties of inventories, for example inventory of finished products, safety stocks and work in process inventory. The shaping of the WIP inventory is very important for a business since the other activities linked to the WIP inventory are effected of the shaping of the WIP inventory. Purpose: The purpose is to suggest an improved utilization process of WIP inventory in order to support an efficiency of internal flow of materials. Methodology: The study applies a qualitative case study. The study is based on observations at the case company together with semi-structured interviews. Conclusions: After concluded study we can show that there are differences between what is described in the theory and how the actual WIP inventory is constructed at Proton Lighting. What has been shown in the comparison between the theory and the collected data is that the MTO-flow precede the MTS-flow. Automatically the MTS-article gets a higher inventory cost because of the preceding of the MTO-article. There is not a fixed placement for the articles in the WIP inventories which can result in that the articles are placed anywhere in the factories WIP inventories, which leads to an increase of the internal transports. Keywords: Work in process, inventory, inventory layout, make-to-order, make-to-stock, article placement

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The study examined the validity of using the California Psychological Inventory (CPI) as a tool for police selection. The mean CPI profile of 211 police applicants was first compared to that of the CPI norms. Five performance criterion measures--retention on the job, academy grades, supervisory ratings, commendations, and reprimands of police officers--were studied to investigate their relationships with the CPI scales. The results indicated that there were significant mean differences on all the CPI scales between police applicants and CPI norms. The scale of Flexibility significantly differentiated the criterion groups of retention on the job. The CPI was useful in predicting academy performance; however, it did not correlate well with job performance as measured by supervisory ratings, commendations, and reprimands.

The use of the Minnesota Multiphasic Personality Inventory (MMPI) and the Health Attribution Test (HAT) for predicting referral compliance to a state vocational rehabilitation program was evaluated. Subjects included 53 patients (26 males, 27 females) who were chosen at random three to 18 months following discharge from an inpatient chronic and spinal pain center. Subjects were administered the MMPI and HAT upon hospital admission and seven outcome measures of referral compliance were obtained. A discriminant analysis was performed to test the hypothesis that certain items would best discriminate compliance. Most discriminative of compliance was the MMPI validity scale K (Wilks Lambda = .751, p ≤ .033). A regrouping of data into two groups, active and inactive, yielded ego strength (MMPI, ES) and ability to trust others (PA) as significant differentiating variables.