Made available in DSpace on 2014-12-17T14:52:34Z (GMT). No. of bitstreams: 1 IdelmarciaDO.pdf: 781272 bytes, checksum: fb2e5ba3247ab47eff60bb3c30b07e21 (MD5) Previous issue date: 2007-10-19 / The spread of the Web boosted the dissemination of Information Systems (IS) based on the Web. In order to support the implementation of these systems, several technologies came up or evolved with this purpose, namely the programming languages. The Technology Acceptance Model TAM (Davis, 1986) was conceived aiming to evaluate the acceptance/use of information technologies by their users. A lot of studies and many applications have used the TAM, however, in the literature it was not found a mention of the use of such model related to the use of programming languages. This study aims to investigate which factors influence the use of programming languages on the development of Web systems by their developers, applying an extension of the TAM, proposed in this work. To do so, a research was done with Web developers in two Yahoo groups: java-br and python-brasil, where 26 Java questionnaires and 39 Python questionnaires were fully answered. The questionnaire had general questions and questions which measured intrinsic and extrinsic factors of the programming languages, the perceived usefulness, the perceived ease of use, the attitude toward the using and the programming language use. Most of the respondents were men, graduate, between 20 and 30 years old, working in the southeast and south regions. The research was descriptive in the sense of its objectives. Statistical tools, descriptive statistics, main components and linear regression analysis were used for the data analysis. The foremost research results were: Java and Python have machine independence, extensibility, generality and reliability; Java and Python are more used by corporations and international organizations than supported by the government or educational institutions; there are more Java programmers than Python programmers; the perceived usefulness is influenced by the perceived ease of use; the generality and the extensibility are intrinsic factors of programming languages which influence the perceived ease of use; the perceived ease of use influences the attitude toward the using of the programming language / A difus?o da Web impulsionou a dissemina??o de Sistemas de Informa??o (SI) baseados na Web. Para apoiar a implementa??o desses sistemas, diversas tecnologias surgiram ou evolu?ram com este prop?sito, dentre elas as linguagens de programa??o. O Modelo de Aceita??o de Tecnologia - TAM (Davis, 1986) foi concebido com o intuito de avaliar a aceita??o/uso de tecnologias da informa??o por seus usu?rios. V?rios estudos e aplica??es diversas t?m utilizado o TAM, no entanto, n?o foi encontrada na literatura men??o a utiliza??o de tal modelo com rela??o ao uso de linguagens de programa??o. Este estudo objetiva investigar que fatores influenciam o uso de linguagens de programa??o utilizadas no desenvolvimento de sistemas Web por parte de seus desenvolvedores, utilizando uma extens?o do TAM, proposta neste estudo. Para tanto, foi realizada uma pesquisa com desenvolvedores Web pertencentes a dois grupos do Yahoo: java-br e python-brasil, no qual foram respondidos, na ?ntegra, 26 question?rios Java e 39 Python. O question?rio tinha quest?es de car?ter geral e quest?es que mediam os fatores intr?nsecos e extr?nsecos das linguagens de programa??o, a utilidade percebida, a facilidade de uso percebida, a atitude sobre o uso e o uso da linguagem de programa??o. A maioria dos respondentes eram homens, com n?vel superior, idade entre 20 e 30 anos, atuando nas regi?es sudeste e sul. Do ponto de vista de seus objetivos, a pesquisa foi descritiva. Em rela??o ? forma de abordagem, quantitativa. Para a an?lise de dados foram utilizadas ferramentas estat?sticas, estat?stica descritiva, componentes principais e an?lise de regress?o linear m?ltipla. Os principais resultados da pesquisa foram: Java e Python possuem independ?ncia de m?quina, extensibilidade, generalidade e confian?a; Java e Python s?o mais utilizadas por corpora??es e organiza??es internacionais do que apoiadas pelo governo ou institui??es de ensino; h? mais programadores Java do que Python; a utilidade percebida ? influenciada pela facilidade de uso percebida; a generalidade e a extensibilidade s?o fatores intr?nsecos as linguagens de programa??o que influenciam a facilidade de uso percebida; a facilidade de uso percebida influencia a atitude em rela??o ao uso da linguagem de programa??o

Made available in DSpace on 2014-12-17T13:53:26Z (GMT). No. of bitstreams: 1 LuanaOF_DISSERT.pdf: 1030039 bytes, checksum: b1f3a5572811212c68f8762f2fe14feb (MD5) Previous issue date: 2010-09-03 / This research aims to understand the factors that influence intention to online purchase of consumers, and to identify between these factors those that influence the users and the nonusers of electronic commerce. Thus, it is an applied, exploratory and descriptive research, developed in a quantitative model. Data collection was done through a questionnaire administered to a sample of 194 graduate students from the Centre for Applied Social Sciences of UFRN and data analysis was performed using descriptive statistics, confirmatory factorial analysis and simple and multiple linear regression analysis. The results of descriptive statistics revealed that respondents in general and users of electronic commerce have positive perceptions of ease of use, usefulness and social influence about buying online, and intend to make purchases on Internet over the next six months. As for the non-users of electronic commerce, they do not trust the Internet to transact business, have negative perceptions of risk and social influence over purchasing online, and does not intend to make purchases on Internet over the next six months. Through confirmatory factorial analysis six factors were set up: behavioral intention, perceived ease of use, perceived usefulness, perceived risk, trust and social influence. Through multiple regression analysis, was observed that all these factors influence online purchase intentions of respondents in general, that only the social influence does not influence the intention to continue buying on the Internet from users of electronic commerce, and that only trust and social influence affect the intention to purchase online from non-users of electronic commerce. Through simple regression analysis, was found that trust influences perceptions of ease of use, usefulness and risk of respondents in general and users of electronic commerce, and that trust does not influence the perceptions of risk of non-users of electronic commerce. Finally, it was also found that the perceived ease of use influences perceived usefulness of the three groups. Given this scenario, it was concluded that it is extremely important that organizations that work with online sales know the factors that influence consumers purchasing intentions in order to gain space in their market / A presente pesquisa tem como objetivo compreender os fatores que influenciam a inten??o de compra online dos consumidores, bem como identificar entre esses fatores os que influenciam os usu?rios e os n?o usu?rios de com?rcio eletr?nico. Assim, trata-se de uma pesquisa aplicada, explorat?ria e descritiva, que utilizou um levantamento de natureza quantitativa. A coleta dos dados foi feita atrav?s de um question?rio aplicado em uma amostra de 194 alunos de p?s-gradua??o do Centro de Ci?ncias Sociais Aplicadas da UFRN e a an?lise desses dados foi feita por meio de estat?sticas descritivas, an?lises fatoriais confirmat?rias e an?lises de regress?o linear simples e m?ltipla. Os resultados das estat?sticas descritivas revelaram que os pesquisados em geral e os usu?rios de com?rcio eletr?nico possuem percep??es de facilidade de uso, de utilidade e da influ?ncia social positivas em rela??o ? compra online e t?m a inten??o de comprar pela Internet nos pr?ximos seis meses. J? os n?o usu?rios de com?rcio eletr?nico n?o confiam na Internet para realizar transa??es comerciais, possuem percep??es de risco e da influ?ncia social negativas em rela??o ? compra online e n?o possuem a inten??o de comprar pela Internet nos pr?ximos seis meses. Atrav?s das an?lises fatoriais confirmat?rias, criaram-se seis fatores: inten??o de comportamento, facilidade de uso percebida, utilidade percebida, risco percebido, confian?a e influ?ncia social. Por meio das an?lises de regress?o m?ltipla, observou-se que todos esses fatores influenciam a inten??o de compra online dos pesquisados em geral, que somente a influ?ncia social n?o influencia a inten??o de continuar comprando pela Internet dos usu?rios de com?rcio eletr?nico, e que somente a confian?a e a influ?ncia social influenciam a inten??o de realizar compra online dos n?o usu?rios de com?rcio eletr?nico. Atrav?s das an?lises de regress?o simples, observouse que a confian?a influencia as percep??es de facilidade de uso, de utilidade e de risco dos pesquisados em geral e dos usu?rios de com?rcio eletr?nico, e que a confian?a n?o influencia a percep??o de risco dos n?o usu?rios de com?rcio eletr?nico. Por fim, constatou-se tamb?m que a facilidade de uso percebida influencia a percep??o de utilidade dos tr?s grupos analisados. Diante desse cen?rio, concluiu-se que ? de suma import?ncia que as organiza??es que trabalham com vendas online conhe?am os fatores que influenciam a inten??o de compra dos consumidores, a fim de conquistarem mais espa?o no seu mercado de atua??o

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-08-26T14:00:38Z No. of bitstreams: 1 2011- C?ntia Let?cia da Silva Rosa.pdf: 3366742 bytes, checksum: 280ece7f9ee6afde0d927d4a7dd0c3ef (MD5) / Made available in DSpace on 2016-08-26T14:00:38Z (GMT). No. of bitstreams: 1 2011- C?ntia Let?cia da Silva Rosa.pdf: 3366742 bytes, checksum: 280ece7f9ee6afde0d927d4a7dd0c3ef (MD5) Previous issue date: 2011-03-31 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / This study aimed to evaluate accessions of tomato 'heirloom' whose cultivation is still little known in Brazil, grown organically, and its physical-chemical, nutritional and sensory characteristics after processing to obtain concentrated pulp. We used the non-hybrid tomatoes (Lycopersicum esculentum Mill) San Marzano, Chico Grande, Amish Paste and called EUA 05. The fruits were produced in the period from May to September 2010, the sector of Horticulture Department of Plant Science, of UFRRJ. In fresh fruit were analyzed total soluble solids (TSS), acidity (TTA), pH, quantification and identification of carotenoids, color of skin and pulp, texture instrumental and analysis of pesticides. Access San Marzano was not processed because of bacterial contamination in the field. The process was composed of the stages of pre-washing, washing / screening, milling, pulping, concentration, filling, exhaustion, closing, heat treatment / cooling and storage. It were added in the formulation of 1% salt, 0.4% sugar and citric acid for pH correction for microbial control. It was performed viscosity and pre-commercial sterility analyses in addition to those cited in the fresh tomato, both in the pulps in this study as six commercial brands on the market. For the sensorial analysis of the product manufactured was performed the Quantitative Descriptive Analysis (QDA) with trained judges and acceptance test with consumers. With respect to the TSS in tomatoes fresh, the Chico Grand and San Marzano showed the highest values (5.2? Brix). Access Chico Grande showed greater balance between acidity and sugar content in fruit, established by the TSS / TA (? Brix /%) of 19.2. Regarding the content of lycopene, access San Marzano had a higher average level of 6029 ?g/100g and more red coloration observed in the amount of a *= 29.68. No pesticide residues were found in the samples for organochlorine and organophosphorus pesticides. Results for the SST of pulps showed that accessions Amish Paste and EUA 05 stood out with values of 10.1 ? Brix. Regarding ATT access Amish Paste showed higher citric acid (1.445 g/100g) and lower pH value (3.66), which can lead to an impairment of sensory quality. The efficiency of the processing of pulp was 73% for access Chico Grande, Amish Paste 72% and 81% for EUA 05. After analyzing the lycopene content of the samples, we observed that the sample Amish Paste (3346.0 ?g/100g) and EUA 05 (3375.0 ?g/100g) showed the highest values with no statistical difference between them, corroborating the red color represented by lower values of hue angle. With respect to viscosity, the samples Chico Grande (246cP) and EUA 05 (235cP) stood out by the highest maximum viscosity. The results found in ADQ characterized the pulps by the attributes of astringency, taste salty, sour and acid flavor, and the commercialpulps by the attributes sweet aroma and sweet taste, flavor and aroma of tomato pulp. With respect to acceptance, the lowest scores were attributed to pulp in this study. However, samples Chico Grande (4.41) and the EUA 05 (4.48) had the highest score for overall acceptability with statistically significant differences with regard to the sample Amish Paste (3.06). It can be concluded with respect to fresh tomatoes that tomato 'heirloom' evaluated showed good quality in relation to balance acidity/sugar, and lycopene content. In pulps prepared from the three accessions 'heirloom' studied, concentrated pulp obtained from tomato Amish Paste and USA 05 showed the best characteristics for the food industry, with respect to soluble solids, lycopene content and red color. However, access Chico Grande showed higher viscosity when compared to other accessions. After the sensory analysis concluded that there was a rejection by the majority of consumers with regard to all the pulps obtained from tomatoes 'heirloom' due to significant changes in aroma and taste sour, salty taste as well as during the preparation / Este trabalho teve como objetivo geral avaliar acessos de tomate ?heirloom? cujo cultivo ainda ? pouco conhecido no Brasil, cultivados no sistema org?nico, e suas caracter?sticas f?sicoqu?micas, nutricionais e sensoriais ap?s o processamento para obten??o de polpa concentrada. Foram utilizados os tomates n?o h?bridos (Lycopersicum esculentum Mill) San Marzano, Chico Grande, Amish Paste e o denominado EUA 05. Os frutos foram produzidos no per?odo de maio a setembro de 2010, no setor de Horticultura do Departamento de Fitotecnia, da UFRRJ. Os frutos in natura foram caracterizados pelas an?lises de s?lidos sol?veis totais (SST), acidez total titul?vel (ATT), pH, quantifica??o e identifica??o dos caroten?ides, cor da casca e da polpa, textura instrumental e an?lise de pesticidas. O processamento e as an?lises foram realizados na Embrapa Agroind?stria de Alimentos, Rio de Janeiro-RJ. O processamento foi composto pelas etapas de pr?-lavagem, lavagem/sele??o, tritura??o, despolpamento, concentra??o, envase, exaust?o, fechamento, tratamento t?rmico/resfriamento e armazenamento. O acesso San Marzano n?o foi utilizado devido ? contamina??o bacteriana no campo. Foram adicionados na formula??o 1% de sal, 0,4% de a??car e ?cido c?trico para corre??o do pH para controle microbiol?gico. As mesmas an?lises realizadas no tomate in natura e ainda as an?lises de viscosidade, coliformes a 45?C, salmonelas, pr?-esterilidade comercial e avalia??o sensorial foram realizadas nas polpas concentradas e em seis marcas comerciais do mercado. Para realiza??o da an?lise sensorial utilizou-se a An?lise Descritiva Quantitativa (ADQ) com equipe treinada e Teste de Aceita??o com consumidores. Com rela??o ao teor de SST nos tomates in natura os acessos Chico Grande e San Marzano apresentaram os maiores valores (5,2 ?Brix). O acesso Chico Grande apresentou maior balan?o entre acidez e o teor de a??cares no fruto, estabelecido pela rela??o SST/ATT (?Brix/%) de 19,2. Com rela??o ao teor de licopeno o acesso San Marzano apresentou maior teor m?dio de 6029 ?g/100g, bem como colora??o mais vermelha observada pelo par?metro instrumental a*=29,68. N?o foram encontrados res?duos de agrot?xicos organofosforados e organoclorados em nenhuma das amostras. Nas polpas concentradas os resultados encontrados para a an?lise SST demonstraram que os acessos Amish Paste e EUA 05 se destacaram com valores de 10,1?Brix. O acesso Amish Paste apresentou maior valor de acidez (1,445g/100g), bem como menor valor de pH (3,66), o que levou a um comprometimento da sua aceita??o sensorial. O rendimento ap?s despolpamento dos tomates foi de 73% para o acesso Chico Grande, 72% para Amish Paste e de 81% para EUA 05. Ap?s a an?lise do teor de licopeno das amostras, observou-se que a amostra Amish Paste (3346,0?g/100g) e EUA 05 (3375,0?g/100g) apresentaram os maiores valores sem diferen?a estat?stica entre si, corroborando com a colora??o vermelha representada pelos menores valores do ?ngulo hue (?h). As polpas Chico Grande (246cP) e EUA 05 (235cP) se destacaram pelos maiores valores de viscosidade m?xima. A avalia??o sensorial (ADQ) caracterizou as polpas obtidas pelos atributos adstring?ncia, gosto salgado, gosto ?cido e aroma ?cido; e as polpas comerciais pelos atributos aroma doce, gosto doce, sabor e aroma caracter?stico de polpa de tomate. Com rela??o ? aceita??o, as menores notas foram atribu?das ?s polpas deste estudo. No entanto, as amostras Chico Grande (4,41) e EUA 05 (4,48) apresentaram a maior nota de aceita??o global com diferen?a estat?stica significativa com rela??o ? amostra Amish Paste (3,06). Pode-se concluir com rela??o ao tomate in natura que os acessos de tomate ?heirloom? avaliados apresentaram boa qualidade com rela??o ao equil?brio acidez/a??cares e teores de licopeno. Nas polpas elaboradas dos tr?s acessos ?heirloom? estudados, a polpa concentrada obtida do tomate EUA 05 e Amish Paste apresentaram melhores caracter?sticas para a ind?stria de alimentos, com rela??o ao teor de s?lidos sol?veis, teor de licopeno e colora??o vermelha. No entanto, o acesso Chico Grande apresentou valores maiores de viscosidade quando comparados aos outros acessos. Ap?s an?lise sensorial concluise que houve uma rejei??o pela maioria dos provadores com rela??o a todas as polpas obtidas dos tomates ?heirloom? devido a altera??es significativas no aroma e sabor ?cido, bem como no gosto salgado, decorrentes de sua formula??o.

Made available in DSpace on 2014-12-17T13:53:24Z (GMT). No. of bitstreams: 1 AnnaCSN.pdf: 3032779 bytes, checksum: c9b62b38c5e42ff883e6b2946ccff0e1 (MD5) Previous issue date: 2009-09-04 / This study examines the factors that influence public managers in the adoption of advanced practices related to Information Security Management. This research used, as the basis of assertions, Security Standard ISO 27001:2005 and theoretical model based on TAM (Technology Acceptance Model) from Venkatesh and Davis (2000). The method adopted was field research of national scope with participation of eighty public administrators from states of Brazil, all of them managers and planners of state governments. The approach was quantitative and research methods were descriptive statistics, factor analysis and multiple linear regression for data analysis. The survey results showed correlation between the constructs of the TAM model (ease of use, perceptions of value, attitude and intention to use) and agreement with the assertions made in accordance with ISO 27001, showing that these factors influence the managers in adoption of such practices. On the other independent variables of the model (organizational profile, demographic profile and managers behavior) no significant correlation was identified with the assertions of the same standard, witch means the need for expansion researches using such constructs. It is hoped that this study may contribute positively to the progress on discussions about Information Security Management, Adoption of Safety Standards and Technology Acceptance Model / Este estudo analisa os fatores que influenciam os gestores p?blicos na ado??o de pr?ticas van?adas de Gest?o de Seguran?a da Informa??o. A pesquisa utilizou como base assertivas a Norma de Seguran?a ISO 27001:2005 e modelo te?rico baseado no TAM (Technology Acceptance Model) descrito em Venkatesh e Davis (2000). O m?todo adotado foi a esquisa de campo de alcance nacional que contou com a participa??o de oitenta gestores p?blicos dos Estados do Brasil, sendo todos coordenadores na ?rea de gest?o e planejamento dos governos estaduais. A abordagem da pesquisa foi quantitativa e foram utilizados m?todos de estat?stica descritiva, an?lise fatorial e regress?o linear m?ltipla para an?lise dos dados. Os resultados da pesquisa apresentaram correla??o entre os construtos do modelo TAM (facilidade na utiliza??o, percep??o sobre a utilidade, atitude e inten??o de utiliza??o) e a concord?ncia com as assertivas elaboradas de acordo com a norma ISO 27001, demonstrando que estes fatores influenciam os gestores na ado??o de tais pr?ticas. J? as outras vari?veis independentes do modelo (perfil organizacional, perfil demogr?fico e comportamental dos gestores) n?o tiveram correla??o significante com as assertivas da referida norma, demonstrando necessidade de amplia??o de pesquisas com utiliza??o de tais construtos. Espera-se que este estudo possa contribuir de forma positiva ao avan?o nas discuss?es sobre o tema Gest?o de Seguran?a da Informa??o e Ado??o de Normas de Seguran?a, bem como, Modelos de Aceita??o de Tecnologia

Made available in DSpace on 2014-12-17T13:53:26Z (GMT). No. of bitstreams: 1 CristinaKNY_DISSERT.pdf: 2647899 bytes, checksum: 38fec83f99c6340d8c2475bec099d1b8 (MD5) Previous issue date: 2010-09-03 / In recent decades the public sector comes under pressure in order to improve its performance. The use of Information Technology (IT) has been a tool increasingly used in reaching that goal. Thus, it has become an important issue in public organizations, particularly in institutions of higher education, determine which factors influence the acceptance and use of technology, impacting on the success of its implementation and the desired organizational results. The Technology Acceptance Model - TAM was used as the basis for this study and is based on the constructs perceived usefulness and perceived ease of use. However, when it comes to integrated management systems due to the complexity of its implementation,organizational factors were added to thus seek further explanation of the acceptance of such systems. Thus, added to the model five TAM constructs related to critical success factors in implementing ERP systems, they are: support of top management, communication, training, cooperation, and technological complexity (BUENO and SALMERON, 2008). Based on the foregoing, launches the following research problem: What factors influence the acceptance and use of SIE / module academic at the Federal University of Para, from the users' perception of teachers and technicians? The purpose of this study was to identify the influence of organizational factors, and behavioral antecedents of behavioral intention to use the SIE / module academic UFPA in the perspective of teachers and technical users. This is applied research, exploratory and descriptive, quantitative with the implementation of a survey, and data collection occurred through a structured questionnaire applied to a sample of 229 teachers and 30 technical and administrative staff. Data analysis was carried out through descriptive statistics and structural equation modeling with the technique of partial least squares (PLS). Effected primarily to assess the measurement model, which were verified reliability, convergent and discriminant validity for all indicators and constructs. Then the structural model was analyzed using the bootstrap resampling technique like. In assessing statistical significance, all hypotheses were supported. The coefficient of determination (R ?) was high or average in five of the six endogenous variables, so the model explains 47.3% of the variation in behavioral intention. It is noteworthy that among the antecedents of behavioral intention (BI) analyzed in this study, perceived usefulness is the variable that has a greater effect on behavioral intention, followed by ease of use (PEU) and attitude (AT). Among the organizational aspects (critical success factors) studied technological complexity (TC) and training (ERT) were those with greatest effect on behavioral intention to use, although these effects were lower than those produced by behavioral factors (originating from TAM). It is pointed out further that the support of senior management (TMS) showed, among all variables, the least effect on the intention to use (BI) and was followed by communications (COM) and cooperation (CO), which exert a low effect on behavioral intention (BI). Therefore, as other studies on the TAM constructs were adequate for the present research. Thus, the study contributed towards proving evidence that the Technology Acceptance Model can be applied to predict the acceptance of integrated management systems, even in public. Keywords: Technology / Nas ?ltimas d?cadas o setor p?blico vem sofrendo press?es com vistas a melhorar seu desempenho. A utiliza??o da Tecnologia da Informa??o (TI) tem sido uma ferramenta cada vez mais empregada na tentativa de alcan?ar esse objetivo. Dessa forma, passou a ser uma importante quest?o nas organiza??es p?blicas, e em particular nas institui??es de ensino superior, verificar quais fatores influenciam a aceita??o e o uso da tecnologia, impactando no sucesso de sua implementa??o e nos resultados organizacionais almejados. O Modelo de Aceita??o da Tecnologia TAM foi utilizado como base para o presente estudo e fundamenta-se nos construtos utilidade percebida e facilidade de uso percebida. No entanto, quando se trata de sistemas integrados de gest?o, devido ? complexidade de sua implanta??o, acrescentaram-se fatores organizacionais para assim buscar maior explica??o da aceita??o desses sistemas. Assim, acrescentaram-se ao modelo TAM cinco construtos relacionados aos fatores cr?ticos de sucesso na implementa??o de sistemas ERP, s?o eles: apoio da alta administra??o, comunica??o, treinamento, coopera??o, e complexidade tecnol?gica (BUENO e SALMERON, 2008). Com base no exposto, lan?a-se o seguinte problema de pesquisa: quais fatores influenciam a aceita??o e uso do SIE/m?dulo acad?mico na Universidade Federal do Par?, a partir da percep??o dos usu?rios t?cnicos e docentes? O objetivo geral da pesquisa foi identificar a influ?ncia de fatores organizacionais e comportamentais como antecedentes da inten??o comportamental de uso do SIE/m?dulo acad?mico na UFPA sob a perspectiva dos usu?rios docentes e t?cnicos. A presente pesquisa ? aplicada, explorat?ria e descritiva, de natureza quantitativa com a aplica??o de um survey, e a coleta de dados se deu por meio de question?rio estruturado aplicado a uma amostra composta por 229 docentes e 30 t?cnico-administrativos. A an?lise de dados se deu atrav?s de estat?sticas descritivas e modelagem de equa??o estrutural com a t?cnica de m?nimos quadros parciais (Partial Least Square-PLS). Primeiramente efetuou-se a avalia??o do modelo de mensura??o, no qual foram verificadas a confiabilidade, validade convergente e discriminante para todos os indicadores e construtos. Em seguida, o modelo estrutural foi analisado, com a utiliza??o de bootstrap como t?cnica de reamostragem. Na avalia??o das signific?ncias estat?sticas, todas as hip?teses formuladas foram suportadas. O coeficiente de determina??o (R?) foi considerado alto ou m?dio em 5 das 6 vari?veis end?genas, assim o modelo consegue explicar 47,3% da varia??o da inten??o comportamental. Ressalta-se que, dentre os antecedentes da inten??o comportamental (BI) analisados no presente estudo, utilidade percebida ? a vari?vel que possui maior efeito sobre a inten??o comportamental, seguida pela facilidade de uso (PEU) e a atitude (AT). Dentre os aspectos organizacionais (fatores cr?ticos de sucesso) estudados, complexidade tecnol?gica (TC) e treinamento (TRE) foram aqueles com maior efeito sobre a inten??o comportamental de usar, apesar desses efeitos serem inferiores aos produzidos pelos fatores comportamentais (origin?rios do TAM). Destaca-se, ainda, que o apoio da alta administra??o (TMS) apresentou, entre todas as vari?veis, o menor efeito sobre a inten??o de usar (BI) e foi seguida pela comunica??o (COM) e coopera??o (CO), as quais exercem um baixo efeito sobre a inten??o comportamental (BI). Portanto, conforme outros estudos, os construtos relativos ao TAM mostraram-se adequados para a presente pesquisa. Dessa maneira, o estudo contribuiu no sentido de demonstrar ind?cios de que o Modelo de Aceita??o da Tecnologia pode ser aplicado ? predi??o da aceita??o de sistemas integrados de gest?o, mesmo em organiza??es p?blicas.