Conception of mobility and mobile workplace is analyzing into theoretic part of Master Thesis. Survey of devices and software for installing of mobile workplace, Lithuanian companies inculcated mobile decisions are presented as well. Objective of practical part is fit-out of mobile workplace in Stock company ��Siauliu energija”. Activity of company’s departments was analyzed for this objective achieving and was found that “mobile” and “manual” work is mostly conspicuous in subscription office, where work nature determines that workers most of time spend not in company, but outside. Exactly for this reason subscription office was chosen for fit-out of mobile workplace. After comprehensive analysis of subscription office work few prototypes of task solution were created, from which workers chose their mobile workplace device - Personal Digital Assistant (PDA). For this device with installed Palm OS operating system was written program for input of indications from Thermal registers, module for data transfer from PDA to desk computer and these data import to existing accounting system. There were calculated possibilities and time of this technology payback and future alternatives for getting data from thermal registers were reviewed. The results gained from literature analysis and at stage of programmable product creation are basis for conclusions and suggestions, which form the last part of the Thesis.