Costs and benefits associated with decisions that characterize the daily life of man, are descended from multiple and often conflicting viewpoints or criteria used in the activity of decision making which has become the object of extensive and recent studies related to a real mathematical discipline called Multiple Criteria Decision Analysis. Any decision is not solely an "act of choice" but the result of a "decision process" of understanding and modeling the problem ie a series of activities that enable the transformation of the "problem" in the "solution" leading decision makers in a passage of psychological state by a sense of dissatisfaction to satisfaction. Studies carried out within the MCDA resulted in two different schools of thought: the French school based primarily on the concept of outranking and the American school of Multi - Attribute Utility and Value Theories, it belongs to the Analytic Hierarchy Process, MCDA methodology developed by Thomas Lorie Saaty to operate the ranking of a definite or indefinite number of alternatives, the comparison in pairs, ie the measurement of the relative importance of potential actions or alternatives, according to a criterion or point of view of a higher level, enables the determination of an entity to prioritize intangible, by definition devoid of scales, but also tangible entities assessed in metric topology of suitable scales. The aim of the thesis was to study the methodology AHP MCDA applied to procurement, management engineering process dedicated to the supply of goods and services in the context of a generic value chain. The e-procurement is a well-established contexts in business-to-consumer, business-to-business and business-to-government, but the generic procurement process model, given the present state ICT applied to the procurement, can not be considered as reference standards as developed in an era of computerized information systems and certainly different from the current with respect to technologies and conceptual schemes. The methodology Hybrid Analytic Hierarchy Process object of research, has originated from a definition of Saaty "a number has no meaning except the one assigned to it by those who are called upon to interpret it." In a context characterized by quantitative and qualitative criteria, methodologies hybrid AHP-R-H and H-AHP-A allow the ranking of definite or indefinite a number of alternatives by means of "lean" MCDA ie by direct calculation NO-AHP with reference to quantitative criteria, and by calculating the AHP and AHP-R-A with reference to qualitative criteria. In order to maximize value of purchase and minimize the time of choice, a process of "lean e - scouting" based on AHP MCDA-H-A was designed; in relation to specific types of purchases, was re-engineered part of the generic procurement process, with the goal of making rational efficient, effective and coherent the choice of the supply in the universe of solutions found on the web. The analytical and experimental research work has been the purpose of changing the methodology MCDA AHP MCDA introducing a hybrid version H-AHP-A very lean and potentially applicable in any decision-making context.
Costi e benefici connessi alle decisioni che quotidianamente caratterizzano la vita dell uomo, discendono dai molteplici e spesso contrastanti punti di vista o criteri utilizzati nell attività di decision making divenuta oggetto di approfonditi e recenti studi afferenti ad una vera e propria disciplina matematica definita Multiple Criteria Decision Analysis. Ogni decisione non rappresenta esclusivamente un atto di scelta bensì il risultato di un processo decisionale di comprensione e modellazione del problema ovverosia una serie di attività che consentono la trasformazione del problema in soluzione determinando nel decision maker un passaggio di stato psicologico da una percezione di insoddisfazione ad una di soddisfazione. Gli studi realizzati in ambito MCDA hanno originato due differenti scuole di pensiero: la scuola francese basata principalmente sul concetto di outranking e la scuola americana delle Multi - Attribute Utility and Value Theories; a quest ultima appartiene l Analytic Hierarchy Process, metodologia MCDA sviluppata da Thomas Lorie Saaty al fine operare il ranking di un numero definito o indefinito di alternative; il confronto a coppie, ovverosia la misurazione dell importanza relativa tra potenziali azioni o alternative, secondo un criterio o punto di vista di livello superiore, consente infatti la determinazione di una scala di priorità per entità intangibili, per definizione prive di scale di misura, ma anche per entità tangibili valutabili in topologia metrica su idonee scale di misura. Obiettivo della tesi di dottorato è stato lo studio, finalizzato alla modifica e all applicazione, della metodologia MCDA AHP al procurement, processo di ingegneria gestionale dedicato all approvvigionamento di beni e servizi nel contesto di una generica value chain. L e-procurement è una realtà consolidata nei contesti business-to-consumer, business-to-business e business-to-government, ma il modello concernente il generico processo di approvvigionamento, dato l odierno stato dell arte dell ICT applicata al procurement, non può considerarsi standard di riferimento poiché elaborato in un epoca caratterizzata da sistemi informativi ed informatici indubbiamente differenti dagli attuali riguardo a tecnologie e schemi concettuali. La metodologia Hybrid Analytic Hierarchy Process oggetto di ricerca, ha tratto origine dalla definizione di Saaty secondo la quale un numero non ha alcun significato se non quello assegnato ad esso da chi è chiamato ad interpretarlo . In un contesto caratterizzato da grandezze quali - quantitative, le metodologie ibride H-AHP-R ed H-AHP-A si caratterizzano poiché consentono il ranking parallelo e seriale di un numero definito o indefinito di alternative mediante lean MCDA ovverosia mediante calcolo diretto NO-AHP del rating ideale con riferimento ai criteri quantitativi e mediante calcolo AHP-R ed AHP-A del rating ideale riferito ai criteri qualitativi. Disegnando un processo di lean e scouting basato su metodologia MCDA H-AHP-A, lo studio eseguito, relativamente a specifiche tipologie di acquisti, ha re-ingegnerizzato parzialmente il generico processo di approvvigionamento, con l obiettivo di rendere razionale, efficiente, efficace e conforme ai criteri di valutazione individuati, la scelta dell alternativa di approvvigionamento nell universo delle soluzioni individuate sul web, al fine di massimizzare il valore dell acquisto e minimizzare i tempi di scelta.
Metodologie Analytic Hierarchy Process ibride per applicazioni di Multiple Criteria Decision Analysis ai processi di Procurement / Latora, ANTONIO GIUSEPPE. - (2011 Dec 10).
Metodologie Analytic Hierarchy Process ibride per applicazioni di Multiple Criteria Decision Analysis ai processi di Procurement
LATORA, ANTONIO GIUSEPPE
2011-12-10
Abstract
Costs and benefits associated with decisions that characterize the daily life of man, are descended from multiple and often conflicting viewpoints or criteria used in the activity of decision making which has become the object of extensive and recent studies related to a real mathematical discipline called Multiple Criteria Decision Analysis. Any decision is not solely an "act of choice" but the result of a "decision process" of understanding and modeling the problem ie a series of activities that enable the transformation of the "problem" in the "solution" leading decision makers in a passage of psychological state by a sense of dissatisfaction to satisfaction. Studies carried out within the MCDA resulted in two different schools of thought: the French school based primarily on the concept of outranking and the American school of Multi - Attribute Utility and Value Theories, it belongs to the Analytic Hierarchy Process, MCDA methodology developed by Thomas Lorie Saaty to operate the ranking of a definite or indefinite number of alternatives, the comparison in pairs, ie the measurement of the relative importance of potential actions or alternatives, according to a criterion or point of view of a higher level, enables the determination of an entity to prioritize intangible, by definition devoid of scales, but also tangible entities assessed in metric topology of suitable scales. The aim of the thesis was to study the methodology AHP MCDA applied to procurement, management engineering process dedicated to the supply of goods and services in the context of a generic value chain. The e-procurement is a well-established contexts in business-to-consumer, business-to-business and business-to-government, but the generic procurement process model, given the present state ICT applied to the procurement, can not be considered as reference standards as developed in an era of computerized information systems and certainly different from the current with respect to technologies and conceptual schemes. The methodology Hybrid Analytic Hierarchy Process object of research, has originated from a definition of Saaty "a number has no meaning except the one assigned to it by those who are called upon to interpret it." In a context characterized by quantitative and qualitative criteria, methodologies hybrid AHP-R-H and H-AHP-A allow the ranking of definite or indefinite a number of alternatives by means of "lean" MCDA ie by direct calculation NO-AHP with reference to quantitative criteria, and by calculating the AHP and AHP-R-A with reference to qualitative criteria. In order to maximize value of purchase and minimize the time of choice, a process of "lean e - scouting" based on AHP MCDA-H-A was designed; in relation to specific types of purchases, was re-engineered part of the generic procurement process, with the goal of making rational efficient, effective and coherent the choice of the supply in the universe of solutions found on the web. The analytical and experimental research work has been the purpose of changing the methodology MCDA AHP MCDA introducing a hybrid version H-AHP-A very lean and potentially applicable in any decision-making context.File | Dimensione | Formato | |
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