Death and disease information are key information in priority setting. Because importance of valid and reliable mortality data, death Registration System in I.R.Iran as a multi source Registration System was established and improved from 1998. In this System mortality data are collected from hospitals, health houses and health centers, forensic medicine bureau, authorized cemeteries, civil Registration bureau and other probable sources in district and within a defined process data are collected in provincial health centers and then in ministry of health. For improvement of registered data some important activities have to done in different level such as continuous education and strengthening intersectoral collaboration.

Registration institution guarantees economic and legal security. Human societies always noted this point and created several Registration Systems. Land title Registration should be simple, reliable and well suited to the society it serves. With regard to social conditions, every society fallows from one of these Systems.Iranian Registration System has enough capacity to establish legal security, but doesn't overlap with owners, government, and society's interests and there are some problems and challenges that require amending Registration laws. Then it must to submit exact solutions that terminate challenges about interpretation and application of Registration regulations. In this thesis, among comparative perspective, is tried to determine the sort of Iranian Registration System about real properties and submitted some solutions and recommendations.

The sovereign nature of the Registration System has included them in the public domain and run by the public sector and through civil servant. The idea of "shrinking the state" and "increasing the regulatory role of governments" has led to the idea of privatizing registries, one of the proposed ways of privatizing is to do the registrar's work with non-governmental experts: notaries. what is the nature of notaries (public, private, privately public), and with what legal bases can they delegate this state sovereignty task? This article, with a comparative and historical overview, concludes that, on the one hand, it is necessary to distinguish between the "notary profession" which is a private profession and the "notary role" which is a public role, based on this role, that is the public authority acting in the name of the state and it has a sovereign nature. On the other hand, although Registration affairs are regarded as sovereign affairs, but based on the foreseeability of doing of sovereign affairs by attracting "people's participation" in laws, it is possible to extend the doing of registrar taskes by notary offices in accordance with the general policies of Article 44 of the Constitutional law.

Objectives: The goal of the present study was to design a Registration System for recording suicide in Iran, capable of designing identification pathways, Registration, and report and follow-up of suicide cases and deaths due to suicide.Method: Through library assessments and surveying suicide Registration Systems in other countries (Denmark, India and WHO), potential methods of suicide in Iran were identified; also, potential methods of identifying suicide cases in the country were designed and finalized subsequent to group consultation.Results: Suicide Registration forms were designed, using the collected data. In this System: 1- The Health and Treatment Network is considered to be the appropriate site for the collection of data related to suicide, 2- Instances of suicide deaths and suicide attempts will be completely registered, 3- Data will be gathered from treatment centers and other contributing centers in general monthly forms, 4- Mental health attendants will enter the data into the computer System each month, in the suicide Registration center affiliated to the health and treatment center, 5- The System will be primarily executed in two universities, 6- Training of target group (managers and personnel) in the primary stages of execution is important.Conclusion: The launch of the System for recording suicidal behavior in the country is the first essential step in the control and prevention of suicide.

Guaranty of security of juridical act about lands is a more important difficulties in every country. Disregarding the independence of land Registration System from the System of civil law and disregarding bases and functions of land Registration System has resulted in making mistakes by judicial doctrine and precedent in order to propose proper suggestions for solving the problems related to land Registration System and to sanction for juridical acts about lands.Whiles presentation every solution in this scope must be proper regarding to protective bases of owner and third parties and two functional characters of the land Registration System including “informing” and “protective” features.land Registration Systems can be divided in constitutive Registration System and confirmative one. This classification means land Registration in any case, has a very effective role in credit of judicial act about of land although the degree of this effect is different depending on the System.

from the point of view of the economicanalysis of law,one of the goals of the legal institution is "Registration of real estate transactions",reducing and correcting "Imperfect Contracts" and "Transaction Costs" for the "optimal use of scarce resources" i.e. real estate. considering that unregistered real estate transaction is one of the most important examples of imperfect contract, therefore, it is important to analyze the mutual impact of the economic theories of imperfect contracts and transaction costs with the legal System of secondary Registration, in preventing contractual defects. therefore, the question arises that how does the existence of the secondary Registration System help to correct imperfect contracts and reduce the costs of real estate transactions? This research is theoretical-applied and the research method in it is library and the method of investigating the issue and analyzing the data is descriptive-analytical. finally, it was concluded that the existence of an imperfect Registration System leads to the conclusion of imperfect contracts from the point of view of law and causes an increase in transaction costs.it is desirable not to have an "Absolutely imperfect real estate contract" from the point of view of economy. therefore, the existence of the principle of mandatory Registration of transactions is necessary.in fact, a secondary Registration System with full legal effect, it leads to the conclusion of a perfect contract from the point of view of law and a partially imperfect contract from the point of view of economy and causes the reduction of real estate transaction costs.

Companies Registration System as the only specialized entity in the field of companies information has the dual function on registering information. In the domain of identity information, provide an unchangeable certainty of corporate identity, is the aim of the System, while in the field of status information, establishment of information symmetry has been targeted by the System. Companies Registration Systems have not applied the same approach in achieving these goals, as they have created Monism and Dualism Systems in the field of identity, and regarding the status information, the Intermediary and Interactionist Systems have emerged. In this study, based on economic analysis, we concluded that, in order to achieve these goals, the Monism System in the field of identity information, and Intermediatory System in the context of status information, are the efficient Systems. On the basis of this, suggestions have been made for the establishment of laws in the field of companies Registration in Iran.

The efficiency of the land Registration System is affected by several components that are divided into two internal levels and specific to each legal and fundamental System. At the domestic level, these components are affected by the structure of the domestic System, especially property law, but at the basic level, the commonalities of various legal Systems are studied. The question is, what are the basic components and how is it achieved? In this paper, with a comparative study in the two land Registration Systems of Iran and the United Kingdom, after stating the basic components of land Registration, which are: Simplicity in the process of registering real estate, granting legal and economic security to real estate, complete Registration of land status, accuracy in registering land information, public access to Registration information, independence of land Registration System, low cost of real estate Registration, approach both Systems were examined in realizing such components.The result shows that in both Systems, all components are not strictly observed and in some cases there are shortcomings that need to be addressed.

Identification and transparency of the legal System of official Registration of any kind of companies can be important in development and facilitation of business and monitoring of business activists. In Iran laws because of Inefficient regulations due to the antiquity of commercial laws lots of problems have arisen for business activists and business corporations. Laws and regulations of company Registration in Iran do not have any specified System. The vague existence of laws and regulations of company’, s Registration and its inconformity with the recent situation caused the confusion of analytic laws and basic elements of company’, s Registration. However after constitutional revolution the situation of trading activities and procedure of formalizing the business activities have been find out so important but the lack of reform and updating, as well as the lack of proper localization of the necessary oversight and regulatory forecasts in business matters, have led to the incorporation of multiple corporate Registration structures into some other registries, and some of the substantive laws and regulations have taxis also extend the dominant space in the Registration process.