NOWADAYS, MUNICIPALITIES CAN PROVIDE SERVICES TO CITIZENS THROUGH INFORMATION TECHNOLOGIES, IMPROVING THEIR MASSIFICATION AND ACCESS. THESE ARE GENERALLY PROVIDED BASED ON A COUNTRY?S LAWS, BUT DIGITALIZATION DISSIMILARITIES AND THE LACK OF GUIDELINES COMPLICATE AN EQUILIBRIUM IN THEIR PROVISION BETWEEN THE DIFFERENT MUNICIPALITIES OF A COUNTRY. ON THE OTHER HAND, ENTERPRISE ARCHITECTURES CAN BE USED FOR STANDARDIZATION, CONVERGENCE, AND INTEROPERABILITY IN ELECTRONIC GOVERNMENTS, AS THEY ALLOW A HOLISTIC PERSPECTIVE FOR VIEWING THE INFORMATION TECHNOLOGY RESOURCES OF A MUNICIPALITY AND ALIGNING THEM WITH THEIR BUSINESS STRATEGY. THE CURRENT PROPOSAL EMERGES IN THIS SCENARIO, WITH THE OBJECTIVE OF PRESENTING A METHOD FOR DEVELOPING REFERENCE ENTERPRISE ARCHITECTURES BASED ON E-SERVICES AND ITS USE IN A SPECIFIC CASE. CONCRETELY, A REFERENCE ENTERPRISE ARCHITECTURE HAS BEEN DEVELOPED FOR A SET OF MINIMUM E-SERVICES THAT MUST BE PROVIDED BY CHILEAN MUNICIPALITIES.

CONTEXT THERE IS A GREAT VARIETY OF TECHNIQUES FOR PERFORMING AUTHENTICATION, LIKE THE USE OF TEXT PASSWORDS OR SMART CARDS. SOME TECHNIQUES COMBINE OTHERS INTO ONE, WHICH IS KNOWN AS MULTI-FACTOR AUTHENTICATION. THERE IS AN INTEREST IN KNOWING EXISTING AUTHENTICATION TECHNIQUES, INCLUDING THOSE AIMED AT MULTI-FACTOR AUTHENTICATION, AND THE FRAMEWORKS THAT CAN BE FOUND IN LITERATURE THAT ARE USED TO COMPARE AND SELECT THESE TECHNIQUES ACCORDING TO DIFFERENT CRITERIA. OBJECTIVE THIS ARTICLE AIMS TO GATHER THE EXISTING KNOWLEDGE ON AUTHENTICATION TECHNIQUES AND WAYS TO DISCERN THE MOST EFFECTIVE ONES FOR DIFFERENT CONTEXTS.

AGRICULTURE PRODUCTION HIGHLY DEPENDS ON WATER AND SOIL FACTORS WHICH INCREASINGLY NEED TO BE UTILIZED EFFICIENTLY. PRECISION AGRICULTURE, THROUGH THE SET OF INFORMATION TECHNOLOGIES THAT IT USES, ALLOWS TO EFFECTIVELY MANAGE THESE RESOURCES. THIS WORK AIMS TO GATHER THE EXISTING KNOWLEDGE ON TECHNOLOGIES USED IN PRECISION AGRICULTURE AND WAYS TO DISCERN THE MOST APPROPRIATE ONE FOR DIFFERENT CONTEXTS IN AGRICULTURAL PROCESSES. A SYSTEMATIC LITERATURE REVIEW IS PERFORMED TO IDENTIFY PRECISION AGRICULTURE IMPLEMENTATIONS AND TO ANSWER QUESTIONS SUCH AS THE TYPE OF TECHNOLOGIES USED, CRITERIA FOR THEIR COMPARISON AND SELECTION, AND THE EXISTENCE OF FRAMEWORKS THAT HELP TO DECIDE WHAT TECHNOLOGIES TO IMPLEMENT. A TOTAL OF 3,949 PUBLICATIONS WERE REVIEWED, OF WHICH 259 ADDRESSED THE POSED RESEARCH QUESTIONS. THE FINDINGS ARE THAT REMOTE SENSORS ARE THE MOST USED TECHNOLOGY, THE REQUIRED KNOWLEDGE IS AN IMPORTANT CRITERION FOR DECIDING TO IMPLEMENT PRECISION AGRICULTURE, AND NO FRAMEWORK WAS FOUND THAT GUIDES ITS IMPLEMENTATION.