Dear Khalid,
Thank you for yr questions and welcome to the forum ! 
I think an answer to yr first query will depend on accurate knowledge of the local regulations. Anyone ? (I have heard equivalent questions many times in restaurant around the world and never knew the actual responsibilities for such things, my guess is that it varies widely. )
I presume the DineSafe you refer to are systems of evaluating the food safety of restaurants like this –
http://app.toronto.ca/food2/index.jsp
I guess that most / all developed (?) countries have a requirement for a satisfactory restaurant inspection by Public Health operatives (or the equivalent) in order to be allowed to serve food to the public for direct consumption. The practical difficulty is often concerned with aspects like frequency of inspection, how to standardise the safety requirements, how to effectively enforce the results (particularly negative ones), etc. Additionally, there have been many criticisms from the public sector that the results / details of evaluations, eg excellent, just passed, failed / passed on re-inspection, are mostly unknown.
As a result, the Dinesafe concept has become popular in many countries in recent years, eg USA, Canada, UK, Australia. It is an attempt to boost safety in food eating establishments by defining the requirements and publishing the results of official inspections in a highly visible way. The methods vary although they are usually based on a pass / borderline / fail type system and some use numerical scores. The “visibility” factor also varies eg, coloured icons / cards on the windows, doors or posters giving the specific result. The results are typically summarised in a database on the net which is freely accessible.
(Regarding the referred link above, I liked their including the basic risk assessment procedure for determining inspection frequency plus the detailing of the hygiene procedures which would be particularly focused on during an inspection. Didn’t see anything about microbiological testing though or how they analysed the results. )
Naturally, these projects have been widely sourced / analysed in the media, both officially and otherwise. Many disturbing results have also been published on the net, for example, can see this link (warning ! – I suggest you don’t read this if you are of a sensitive nature or having a meal !) –
http://www.blogto.co...dumpling_house/
Must say that I have not seen any assessments of whether these schemes are believed to have been successful or not although must be some on the net somewhere.?
Regret that I couldn’t find any google refs to such projects being currently in use in Arabic countries. Anyone ?
Rgds / Charles.C
