ENGLISH either DIRECT COSTS or INDIRECT COSTS. 286 VARIABLE INPUT F: FACTEUR VARIABLE DE PRODUCTION, FACTEUR OPERATIONNEL DE PRODUCTION S: INSUMO VARIABLE ..,, INPUT whose level is variable. Often the level used can be chosen by the decision maker. 289- VERIFICATION F: TEST S: VERIFICACION The process of ascertaining if a MODEL is internally consistent. 288 VILLAGE STUDIES F: ETUDE DE VILLAGE S: STUDIOS DE ALDEAS A form of data collection in which the village and its HOUSEHOLDS -oa the units of investigation. 289 VISUAL IMPACT METHOD F: METHOD DE L'IMPACT VISUEL S: METODO DEL IMPACT VISUAL A method of eliciting SUBJECTIVE PROBABILITIES based on allocation of counters over possible STATES OF NATURE. 290 WATER-BALANCE BUDGET F: BILAN EAU PREVISIONNEL S: PRESUPUESTO DE NECESIDADES DE AGUA A BUDGET of the irrigation water needs of a crop or combination of crops. 291 WHOLE-FARM BUDGET F: BUDGET D'EXPLOITATION S: PRESUPUESTO GLOBAL DE LA FINCA A BUDGET drawn up on a whole-farm basis to show the anticipated consequences, in terms of selected measures of performance of some actual or proposed farm plan. PAGE 56