The GIS industry, being multidisciplinary (see Figure 1), brings under the same roof an almost unlimited mix of different professionals such as geographers, surveyors, cartographers, computer scientists, geologists, etc. The list expands daily, quite literally. Indeed, while opening the 2009 ESRI International User Conference in San Diego, California, USA, Jack Dangermond, the President of ESRI, stated that, “…GIS is the technology that is working on all the world’s challenges such as climate change, agriculture, environment, planning, facility management, etc. It seeks to connect all and might just be the lynchpin for a powerful new global movement… [2]. This multidisciplinary application of GIS is also indicated in a proposed moral ideal for the GIS professional: “To apply geospatial technologies and spatial thinking to design futures for people and places everywhere” [3].

In addition, the use of GIS is not limited to professionals; indeed, the concept of a Spatial Data Infrastructure (SDI) envisages an all pervasive use of the technology that goes right down to the ordinary citizen [4]. One therefore ends up with a diverse mix of players in the industry that have a wide array of educational backgrounds (like they say, some have no degrees, while

some have many degrees) and GIS skills.

This question is often asked in view of the fact that many users of GIS, at least at the higher levels, are already certified or licensed in their own professions such as surveying, cartography, geology, etc. The key attributes common to all professions are:

• Skills based on a specialized body of knowledge;

• Advanced academic training;

• A professional association and/or regulatory body;

• Insignia, based on a nationally recognized certification/licensure program;

• A code of ethics;

• International mobility (i.e. cross border recognition of skills).

In many countries, the GIS industry has most of these attributes and hence qualifies to be a profession; For example, recommended skill sets are defined in documents such as the Geospatial Technology Competency Model (GTCM) [5], published by the US Department of Labour, Employment and Training Administration, and it is estimated that advanced academic training in GIS is available in over 7000 universities and colleges worldwide [3]. However, compared with long established professions such as medicine, engineering, surveying or law, the GIS profession is still very young and hence many aspects of its professionalism are still developing; A study [6] found that over 70% of people in GIS jobs think that GIS should be considered a profession and that GIS certification should be implemented.

The argument for certification is largely rooted in the fact that the professional diversity found in the GIS industry results in a mixed state of perceptions in which a GIS software operator, a statistician, an analyst, a programmer, a project manager, an average user of GIS products—none of whom share the same skill set—might be considered a GIS professional. As a result, job titles, responsibilities and professional expectations become confused and can result in serious misunderstandings and costly mistakes. Even worse, it leaves the consumer public in the dark in respect of who to go to for diverse GIS assignments. To many members of the public, anything coming out of a computer “must be right”, and this leaves such a public wide open to manipulation by unqualified people.

Certification would be able to clear much of this confusion by discriminating between the GIS user and the GIS professional. It could do this by codifying good and bad practice, implementing a professional code of ethics that establishes the consequences of bad practice, and outlining the education and work experience necessary to establish good GIS practice.

Specifically, certification is beneficial to:

• GIS Professionals: Certification helps distinguish professionals committed to the GIS profession from casual or inexperienced practitioners. In this way GIS expertise is recognized and promoted and genuine professional alliances built at the local, national and international levels. Certified GIS professionals will also be able to better lobby their governments and other facilitative bodies for resources or representation.

• Employers: Employers can have more confidence in certified GIS professionals, knowing they have met professional benchmarks, demonstrated extensive professional practice, and shown integrity in their work.

• The public: Given that the public sector is one of the largest employment sectors using GIS, tax payers will be assured to know that ethical and proficient GIS professionals are being hired with their tax money, and that certification protects them from quacks.

• GIS students: Students and young practitioners, by knowing about certification and interacting with certified professionals, become aware of what it takes to be a well rounded GIS professional both technically and ethically.

• Allied professionals: As GIS practitioners interact with others from nearly every field, allied practitioners such as planners, surveyors, engineers, etc will have the comfort of knowing that they are dealing with GIS professionals that have undergone professional scrutiny similar to their own.

It must be cautioned that in the absence of a national certification standard, certification could be tricky, with many different organizations putting together competing certification programs that are not uniform in terms of scope or level. This could only create more confusion in the industry. The adoption of such a standard will need consensus from GIS stakeholders such as data producers, users, academia, etc. Such stakeholders can be best rallied together by a strong GIS professional association. It was noted in [7] that the demand for GIS certification must come primarily from those who work in the profession. It must be further cautioned that a certification program that includes educational achievement as part of the criteria must necessarily go hand in hand with accreditation of the relevant academic programs. Accreditation means the recognition of an academic program as meeting defined minimum standards in terms of curriculum content, facilities, personnel and equipment [8]. The accreditation of a program expires after a predetermined period of time (often five years) when accreditation must be sought again.

The general trend worldwide is to move towards certification. There have been arguments to the effect that GIS certification would interfere with the “tool nature” of the technology and limit its wide applicability. However, one only needs to look at what happened in the general IT industry to see the lack of wisdom in this argument.

For long, practitioners in general IT (Programmers, system analysts, etc.) also resisted certification. However, a “free for all” situation soon developed, where anyone claimed to be anything, and all sorts of IT Colleges sprung up claiming to offer tuition in diverse aspects of IT. Many of the graduates of such colleges were often found wanting when subjected to scrutiny. Consequently, IT policies and legislation had to be developed, and professional associations formed to bring order to the industry. In the United States, where one of the biggest IT industries resides, the US Institute for Certification of Computing Professionals was set up for this purpose [9] and has been a role model for certification programs in the area of geoinformation.

GIS certification has been discussed and tried since the early 1990s in the US when the American Society for Photogrammetry and Remote Sensing (ASPRS) set up a limited certification program for “Mapping Scientists, GIS/LIS” [10,11]. A much more inclusive program has its origins in URISA (Urban and Regional Information Systems Association)’s certification committee that was formed in 1997 [12]. Following much debate, the committee eventually evolved into the GIS Certification Institute (GISCI), which has developed a code of ethics and a portfolio based certification program. The program requires minimum levels of achievement in education, professional experience and contributions to the profession (e.g. participation in conference organization, publications, etc.) in order to certify one as a GIS professional entitled to use the designation “GISP”, i.e. GIS professional; This is summarized in Table 1. The first 29 GISPs passed out in 2003 at URISA’s annual conference in Atlanta Georgia; They were required to re-submit their portfolios after five years for re-certification. One of those early GISPs was Roger Tomlinson, reputed to be the father of GIS. Up to the end of 2008, there was a grand fathering provision through which older members of the profession could gain GISP status through experience alone; however, this provision was not available for re-certification.

As of March 2013, there were 5241 GISPs around the world, but concentrated in the USA [13].

The basis for the GISP program is that experience is the most important factor in applying skills to real world problems, and education plays a very important role in providing the knowledge and intellectual maturity required to approach problems and communicate solutions effectively. In addition, professionals must contribute to the advancement of the profession by donating their skills in professional activities not designed for individual compensation, but rather to maintain the fundamental health of the profession.

The GISCI is currently (2013) developing an examination component to be added to their certification requirements in about 3 years time. The ESRI Technical Certification Programme, which requires a pass mark in the use of ESRI products is a likely model to guide the development of this component. ESRI technical certification examinations are offered at 2 levels, Associate and Professional, and each level reflects a recommended set of skills, knowledge and experience using ESRI products [14].

The GISP program is recognized by most of the US professional associations dealing with geo-information, such as the American Congress on Surveying & Mapping (ACSM), American Society for Photogrammetry and Remote Sensing (ASPRS), the Association of American Geographers (AAG) and the University Consortium for Geographic Information Science (UCGIS). The program is also recognized by ESRI, the world market leader in the development and sale of GIS software, which offered free training and materials for the first 1000 GISPs [15].

Table 2 summarizes the GIS certification scenarios in a number of selected countries, outside the USA, with large GIS industries. In all these countries, there is a long standing system of accreditation of surveyors; Since surveyors, due to their strong backgrounds in the spatial sciences, play a key role in any GIS industry, their accreditation systems could be used as suitable models to guide the development of similar systems for GIS professionals.