Introduction
Information and communication technology (ICT) has played an important role in sustainable development. Sustainable development as the comprehensive and simultaneous development in social, economical and environmental aspects by optimum utilization of limited available resources of societies, has been introduced as the first priority of developed and developing societies affecting all their activities pervasively. This situation has created a valuable opportunity for developing societies towards taking a huge step towards reducing the gap exists between them and developed societies. Therefore, any activity, which could accelerate the sustainable development trend potentially, is under especial consideration and acts as priority of societies [16,17].

Information and communication technology (ICT) is one of these accelerators allocated itself special roles in sustainable development presenting considerable capabilities. ICT, which is created through digital era manifestation defined as the technologies which affords facilities and expedites data creation, utilization, contribution and dissemination to societies and brings the possibility of communication between societies through computer networks [1,2,6,8,17].

The ICT development and utilization experiences highlight ICT benefits diffusion dependency to existing developments of societies. While developed societies could utilized high levels of ICT benefits having the required development background, developing societies are facing by lack of such an infrastructure [1,2,17]. This situation, which has created different viewpoints against ICT utilization defects and benefits dealing with sustainable development, results some vague and complexity in ICT concepts. Accordingly in some cases ICT is known in contrary to the global sustainable development aims as it could increase the gap between developing and developed societies. This complex situation arised from the lack of sufficient and clear justifications for ICT efficiencies in sustainable development [9].

Recommended solution is aiming each activity towards sustainable development [1,17] results in simultaneous and comprehensive contribution of these activities. Applying this approach for ICT made it to act as a sustainable development enabler. Some evolutionary changes have created in ICT nature conserving its fundamental specifications. This process is carried out through utilization of new concepts in strategy and policy making for development, which entails the contribution of all the stakeholders in the development process.

Despite the activities have been carried out, the main problem is lack of definite approach, which could provide the required framework [1].

Understanding the necessity of dealing with such a supportive framework definition, this research provided and studied spatial data infrastructure concepts.

Geo-Spatial Information Rationale
Geo-spatial information, contains at least one spatial factor by which is referenced to a unique place, forms a wide spectrum of existing and potential information and datasets in societies (it has been claimed that 80% of information are geo-spatial information [10]). Regarding this comprehension, the general nature of information (information is not consumable, not transferable, accumulative and integratable), the special charactristic of geo-spatial information as their widespread definition domain (our universe) and it’s dependence to related applications and features (scale dependence) has made us to create and utilize various techniques, tools and technologies dealing with geo-spatial information. In this situation, ever increasing demand of geo-spatial information users for technological advance is the direct result of benefits and potentiality emerged from such an information and technology appliance. Similar development, which is created in user communities, entailed an extensive market known as GI-market. Simultaneously, the technical human resource has been developed in different sectors. Understanding the above-mentioned condition, GI-technology providers have been moved towards stimulating and responding to this market needs, which introduces GI-market as one of the most prosper markets [18,20]. Additionally, trends like sustainable development, globalization, environment conservation, political disputes and wars, individualization, human rights and economical reforms have effected this situation and being affected accordingly [6,26].

As all stakeholders contribution in each activity is defined as one of the main aims of decision-makings [6,11], mechanisms which create frameworks for such a contribution are under special considerations of societies. A main portion of this aim dealing with information subject could be come off through the concepts of information communication and technology. Considering the trend of communication technologies and dealing with GI, necessitate these technology growth and evolution for transferring large amount of data with various formats and meta-data and providing analysis capabilities, which is under progress [15].

Besides, the universality of illustrated trends and processes in all societies, the innovational nature of ICT is important too as it necessitates existence of especial economical, social and political backgrounds in different levels of societies for ICT diffusion [6,17].

Spanning and integrating the above-mentioned aspects for ICT towards its utilization in sustainable development introduces the subject of strategy making for ICT.

Dealing with such strategies, common aspects are distinguished as [11,17]:

• Development and utilization of ICT for public benefits provision
• Development of required human resource supporting ICT aims
• ICT management for sustainable development
• Impartial provision of ICT in societies
• Promoting and supporting the financial support creation for ICT related-activities
• Development of required technical knowledge
• Management and supervision of ICT trend

Meanwhile, as no unique solution or process has been emerged dealing with the above-mentioned aim realization, because of their local dependence [1], the effective solutions in support of ICT optimum utilization is the development of spatial data infrastructure (SDI).