Electronic Engineering, Aerospace Engineering, Physics, Earth and Space Sciences, Atmos 
pheric and Marine Sciences e.t.c. 
Especially, the tremendous needs for multidimensional, accurate, reliable and dynamic 
qualitative and quantitative information for natural phenomena and processes as well as for 
human activities and their interrelations, promoted a continuously growing use of computers 
and high technology sensors in Remote Sensing which in its turn profoundly affected both data 
gathering, handling and management procedures and decision making. 
2. The basic characteristics of Remote Sensing science, technique and methodology. 
The basic characteristics of Remote Sensing as a science, technique and methodology 
for data collection and analysis from a distance could be easily concluded by the author’s 
definition for Photointerpretation / Remote Sensing methodology as: the Multidimensional and 
Interdisciplinary Integration process of Experience, Logic, field checking (Fig. 1) and Specific 
Scientific / Technical Knowledge in the acquisition, communication, analysis, processing, in 
terpretation, evaluation, mapping and monitoring of qualitative, quantitative and dynamic in 
formation for our natural and built environment by man and analogue and/or digital Remote 
Sensing Systems. 
Therefore the core philosophical concepts which conditionally determine the very basic 
characteristics of Remote Sensing in complete accordance with the respective characteristics 
of the natural and socioeconomic reality are: 
- MULTIDIMENSIONALITY 
- INTERDISCIPLINARITY 
- SPECIFIC CONSIDERATION AND STUDY 
- INTERGRATION and 
-DYNAMICS 
According to collegiate dictionaries the two less obvious basic terms of these concepts have 
the following meanings: 
Interdisciplinary: of more than one branch of learning; 
covering more than one area of study; 
Integrate : combine (parts) into a whole; 
complete something that is imperfect or incomplete by adding parts; 
combine something in such a way that it becomes fully a part of something else; 
Both Interdisciplinarity and Integration characteristics are also by their nature Multi 
dimensional and Dynamic and presuppose Specific scientific/technical/technological con 
siderations (principles, instrumentations, methodologies and applications). 
Taking into consideration the specific, dynamic and interactive nature of the physical, 
chemical and biological properties, phenomena and processes of the real world we could 
easily and analytically present the above characteristics in the three distinct phases of Photoin 
terpretation and Remote Sensing Procedure as follows: 
Acquisition of Multidimensional Remotely Sensed Information 
MULTI APPLICATION -, 
MULTI TEMPORAL 
MULTI INTEREST 
MULTI SENSOR 
MULTI BAND > IMAGERY 
MULTI SPECTRAL 
MULTI RESOLUTION 
MULTI SCALE 
MULTI FOCAL 
MULTI MEDIA (CCT’s, Films, Prints, Mosaics, Special Products) 
MULTI TYPE (Mono, Stereo) 
MULTI MODE (Pan, XS)