The question of whether there are laws in ecology is important for a number of reasons. If, as some have suggested, there are no ecological laws, this would seem to distinguish ecology from other branches of science, such as physics. It could also make a difference to the methodology of ecology. If there are no laws to be discovered, ecologists would seem to be in the business of merely supplying a suite of useful models. These models would need to be (...) assessed for their empirical adequacy but not for their ability to capture fundamental truths, or the like. If, on the other hand, ecology does have laws, this prompts further questions about what these laws are and why even the best candidates for ecological laws fall short of what might be expected of laws. (shrink)

This study examined the contemporary ijtihād paradigm, especially in understanding the Islamic law sources, according to Muḥammad Shaḥrūr. This study focused on answering two things, namely Shaḥrūr's thinking in understanding the sources of contemporary Islamic law and compared it with the opinions of 'ulamā (Muslim scholars in Islamic law). An explorative method was used to explore the Shaḥrūr's thinking in understanding the contemporary Islamic law sources, and a comparative method was used to analyse it using 'ulamā's methodology. This research study (...) used an Islamic law methodology (uṣūl al-fiqh) approach. This study concluded that the Shaḥrūr's thinking in understanding the sources of contemporary Islamic law is not comprehensive and less of combination among sources and propositions used by 'ulamā. Etymology understanding is most dominant in his methodology. In addition, there are some misunderstandings on Islamic law concepts raised by 'ulamā. CONTRIBUTION: This research enriched the study of contemporary Islamic law in responding to challenges of different times. Shaḥrūr offered a new paradigm that in al-Quran, the laws have certain limits and they should not be violated. The sunnah was divided into two parts, the changing and the unchanging. Qiyas is an analogy with the problems that happen now with those that happened in the past. And ijma is an agreement from people who have authority in certain matters. (shrink)

ABSTRACTBuilding on Google's efforts to scan millions of books, this article introduces methodology using a database of annual word frequencies of the 40,000 most frequently occurring words in the American literature between 1800 and 2009. The current paper uses this methodology to replicate and identify terror management processes in historical context. Variation in frequencies of word usage of constructs relevant to terror management theory are investigated over a time period of 209 years. Study 1 corroborated previous TMT findings and demonstrated (...) that word use of constructs related to death and of constructs related to patriotism and romantic relationships significantly co-vary over time. Study 2 showed that the use of the word “death” most strongly co-varies over time with the use of medical constructs, but also co-varies with the use of constructs related to violence, relationships, religion, positive sentiment, and negative sentiment. Study 3 foun... (shrink)

This article engages two fundamentally different kinds of so-called natural law arguments in favor of specific moral absolutes: Elizabeth Anscombe's claim that certain actions are known to be intrinsically wrong through intuition, and John Finnis's claim that such actions are known to be wrong because they involve acting directly against a basic human good. Both authors maintain, for example, that murder and contraceptive sexual acts are known to be wrong, always and everywhere, through their respective epistemological lens. This article uses (...) the counter-example of anesthesia to challenge these two approaches to substantiating natural law claims. The paper concludes by rejecting the view shared by Professors Finnis and Anscombe that once one rejects these foundations for moral absolutes, one is left with moral subjectivism. In fact, one is left with moral absolutes of a more restricted nature, which are known philosophically, and with more robust moral absolutes held on religious grounds. Virtues are needed in the moral life, among other reasons, because such norms require discernment and integrity for their correct application. (shrink)

The aim of the article is to intervene in debates about the digital and, in particular, framings that imagine the digital in terms of epochal shifts or as redefining life. Instead, drawing on recent developments in digital methods, we explore the lively, productive and performative qualities of the digital by attending to the specificities of digital devices and how they interact, and sometimes compete, with older devices and their capacity to mobilize and materialize social and other relations. In doing so, (...) our aim is to explore the implications of digital devices and data for reassembling social science methods or what we call the social science apparatuses that assemble digital devices and data to ‘know’ the social and other relations. Building on recent work at CRESC on the social life of methods, we recommend a genealogical approach that is alive to the ways in which digital devices are simultaneously shaped by social worlds, and can in turn become agents that shape those worlds. This calls for attending to the specificities of digital devices themselves, how they are varied and composed of diverse socio-technical arrangements, and are enrolled in the creation of new knowledge spaces, institutions and actors. Rather than exploring what large-scale changes can be revealed and understood through the digital, we argue for explorations of how digital devices themselves are materially implicated in the production and performance of contemporary sociality. To that end we offer the following nine propositions about the implications of digital data and devices and argue that these demand rethinking the theoretical assumptions of social science methods: transactional actors; heterogeneity; visualization; continuous time; whole populations; granularity; expertise; mobile and mobilizing; and non-coherence. (shrink)

Research in the subject area of economics (as a social science) has defined its ontologie of scientific investigation through economic methodology; a philosophical approach entailing the proviso of empirical evidence and backed by an understanding of human interaction in their natural habitat. The contention of economic methodology being refuted for its non-scientific means of investigation and particularly with the application of Ceteris Paribus (CP) law, has been critically addressed in this article, with Sierra Leone as a case example. Sierra Leone (...) is a complex economy and issues surrounding the assumption of CP has been brought to the fore, with a view of the political economy structure being made transparent so as to make it possible for economists to address critical issues surrounding corruption (exogenous factors), not accounted for in econometric modelling. This is not necessarily that which is considered as the most obvious, with the use of CP concept, for example, the influence of naturally occurring incidents like adverse weather conditions, flooding and earthquakes. (shrink)

Taking as its starting-point Guido Calabresi’s latest book – The Future of Law and Economics – the present article aims to explore the often neglected issue of value judgments and normativity in Law and Economics. I will show the importance of enquiring Calabresi’s methodological distinction between Law and Economics and Economic Analysis of Law and the related bilateralism thesis in order to understand the problematic relationship between methodological value judgments and ethical value judgments, the ‘distance’ between Calabresi and Posner and (...) the problematic notion of reformism. Then I will try to introduce a different notion of normativity. I will also show the existence of an unresolved tension in Calabresi’s methodological discourse between a positive approach, which seems to be privileged in this book, and his insistence on the inevitability of value judgments in economic analysis. Finally, I clarify the reasons for the ‘ignorance’ of values by the economist by distinguishing between economists’ “lack of self-awareness”, economists’ idolatry and the economists’ lenses. (shrink)

Muslim legal culture is becoming more relevant to modern Ukraine, which can be explained, on the one hand, by the nature of Islam and, on the other, by the peculiarities of its current state in our country. After all, the internal logic of Islam, as a universal system that encompasses both religious and secular life, as one of the components of the awakening of Islam, involves recourse to Sharia, a strict adherence to which is an unmistakable criterion for Muslims of (...) deep religious faith. On the other hand, in addition to religious revival, in the lives of Muslims, social and economic, political, national and cultural problems need to be addressed and secular. It is secular relations that led to the formation of Muslim jurisprudence and its subsequent evolution. (shrink)

Rule of law is a concept that is regularly debated by legal philosophers, often in connection to discussion of the concept of law. In this article, the focus is not on the substance of the conceptual claims, but on the methodologies employed by legal philosophers, investigating seminal articles on the rule of law by Joseph Raz and Jeremy Waldron. I argue that their philosophical argumentations often crucially depend on empirical or legal doctrinal arguments. However, these arguments remain underdeveloped. I explore (...) how these arguments could be linked to approaches related to rule of law in different fields of legal scholarship and investigate how the methodologies of these fields may complement each other. Thus, the article aims to provide an argument for a specific form of triangulation of three kinds of approaches to the rule of law: philosophical, social-scientific and legal doctrinal. This method of triangulation is illustrated by a discussion of the World Justice Project’s Rule of Law Index. (shrink)

This paper discusses Ronald Allen’s article, Naturalized Epistemology and the Law of Evidence Revisited, and reflects on how epistemology can contribute to our understanding of the evidentiary proof process. I first situate Allen’s critique of recent philosophical scholarship, distinguishing between general theoretical accounts of proof (including the theory that Allen and I have defended), on one hand, and the applications of specific epistemological concepts or issues to law, on the other. I then present a methodological picture that diverges in some (...) respects from the one that emerges from Allen’s critique. In discussing this alternative methodological picture, I explain how epistemology can contribute to legal evidence and proof while avoiding the problems that Allen identifies. (shrink)

The status and nature of the state have been the traditional source of claims about the reality of supra-individual social entities. Kelsen was the dissolver of this problematic, by asserting the identity of state and law, and asserting that law was the authorized actions of individuals. But this required an account of the origin of law itself. He traced this to pre-state law, and the normative order of retribution, which he explained as part of a primitive mentality that depended on (...) an undeveloped ego and conceived causality collectively and magically, to include the dead and nature. The casually responsible individual as understood in modern law resulted from the overcoming of these notions. (shrink)

Leonid Pitamic was convinced that law could not be understood and explored by a single method aiming at a pure object of enquiry. He argued that it was necessary to employ other methods besides the normative one (especially the sociological and axiological methods), which, however, should not be confounded. Methodological syncretism can be avoided by clearly distinguishing between different aspects of law and by allowing the methods to support each other. By following this guideline, and by arguing according to a (...) clear method, we can also open up a space for dialogue and for the juxtaposition of contrasting points of view. (shrink)

"Law and Economics has become an established field worldwide and it may be argued that it is one of the few examples of a successful interdisciplinary project. This book explores whether, or to what extent, that interdisciplinarity has indeed been a success. It provides insights on the foundations and methods, achievements and challenges of Law and Economics, at a time when both the continuing challenges to academic economics and the growth of empirical legal studies raise questions about the identity and (...) possible further developments of the project. Through a combination of reflections on long-term trends and detailed case studies on current developments, contributors to this volume analyse whether and in which sense Law and Economics is a successful interdisciplinary endeavour. Inspired by insights from the philosophy of social sciences, the book shows how concepts travel between legal scholarship and economics, how they change meanings when applied elsewhere, how economic theories and models inform, and transform, judicial practice, and addresses whether the transfers of knowledge between economics and law are symmetrical exchanges between the two disciplines"--. (shrink)

The ramifications of modernity and the resultant challenges compelled Ottoman intellectuals and state officials to contemplate matters like as innovation, progress, and change. The pursuit of remedies to eradicate political, military, and economic deficiencies was similarly evident in the legal domain. Ziya Gökalp articulated his perspectives on the origins, societal efficacy, and adaptability of law within the framework of the Turkism movement, presenting several methodologies that redefined the interplay among religion, law, society, and state. The most characteristic method among them (...) is the internal sociological methodology of law, which he equated with his own identity. Other Turkist figures of the time supported this theory, which aimed to bring dynamism to Islamic law in line with modern demands and changing conditions, as well as to establish a national law-society-state relationship. Another approach put forward by Gökalp was based on the distinction between legal (qāḍāī) and ethical/spiritual (diyānī) aspects that were established in traditional Islamic law. In Gökalp's intellectual life that extends from the last years of the Ottoman Empire to the first years of the Republic, two different stages stand out. Gökalp, who tended to restructure jurisprudential concepts with an original interpretation in the late Ottoman period, became a persistent defender of the distinction between religion and state as well as religion and law in the Republican period. However, he did not deny the role of religion in the existence of the nation and emphasized the place of religious institutions, such as the office of Sheikhul-Islam, in the Republican period. Although he took the traditional jurisprudential perspectives into consideration, he could not escape from the criticism of his fellow intellectuals such as İzmirli İsmail Hakkı, who represented the traditional understanding. This article addresses Ziya Gökalp's views that he developed on fiqh and sociology in the Turkish modernisation process and sheds light on the possible reflections of these views on the Republican period. (shrink)

The purpose of this paper is to discuss the methodological foundations of the law and economics movement, with a special emphasis on the role and place of individuals in law and economics. Reviewing the works of the main contributors—the founders, indeed—to the law and economics movement, we show that all of them considered that the analysis of legal phenomena had to start from individual behavior, even as these very behaviors were embedded, to various degrees, though not determined, in legal and (...) institutional frameworks. They all use social, systemic, institutional, and anti-reductionist individualistic methodology. This is not inconsistent or contradictory. Indeed, methodological individualism does not imply to conceive human beings as (isolated) atoms living as if they were suspended in a social vacuum. (shrink)

In the TACITUS project for using commonsense knowledge in the understanding of texts about mechanical devices and their failures, we have been developing various commonsense theories that are needed to mediate between the way we talk about the behavior of such devices and causal models of their operation. Of central importance in this effort is the axiomatization of what might be called commonsense metaphysics. This includes a number of areas that figure in virtually every domain of discourse, such as granularity, (...) scales, time, space, material, physical objects, shape, causality, functionality, and force. Our effort has been to construct core theories of each of these areas, and then to define, or at least characterize, a large number of lexical items in terms provided by the core theories. In this paper we discuss our methodological principles and describe the key ideas in the various domains we are investigating. (shrink)

Professor Franklin shows how the humanist approach of Jean Bodin and other French jurists of the 16th century led to a break, at least in principle, with the intellectual authority of Roman law and to the attempt to reconstruct juristic science through a comparison and synthesis of all the juridical experience of the most famous states.

The Oxford Handbook of Law and Economics provides a broad overview of numerous current and developing topics in the field of law and economics. With contributions by over one-hundred experts in the field within one work, the volume covers issues ranging from as far as Law and Neuroeconomics to European Union Law and Economics to Feminist Theory and Law and Economics. Its detail and breadth make it an invaluable reference book and contribution to the field.

This article analyzes the main trends in the search for new philosophical foundations in Russian philosophy of law, the need for which arose due to the loss of Marxism’s former Soviet-era monopoly...

The field of socio-legal research has encountered three fundamental challenges over the last three decades - it has been criticized for paying insufficient attention to legal doctrine, for failing to develop a sound theoretical foundation and for not keeping pace with the effects of the increasing globalization and internationalization of law, state and society. This book examines these three challenges from a methodological standpoint. It addresses the first two by demonstrating that legal sociology has much to say about justice as (...) a kind of social experience and has always engaged theoretically with forms of normativity, albeit on its own empirical terms rather than on legal theory's analytical terms. The book then explores the third challenge, a result of the changing nature of society, by highlighting the move from the industrial relations of early modernity to the post-industrial conditions of late modernity, an age dominated by information technology. It poses the question whether socio-legal research has sufficiently reassessed its own theoretical premises regarding the relationship between law, state and society, so as to grasp the new social and cultural forms of organization specific to the twenty-first century's global societies. (shrink)

Alex Sarch’s recent book, Criminally Ignorant: Why the Law Pretends We Know What We Don’t is a wonderfully rich work.1 Sarch provides and defends an explanatorily powerful theory of criminal culpab...

The proposed reflection intends to present the problem of judicial adjudication as a substantially-axiologically founded autonomous moment on the practical realization of law, and to explore this understanding in confrontation with external exigencies, mostly teleologically determined—hence, beyond strict deductive application, as a syllogistic reference of facts to norms, and finalistically determined decision, as an option among possible alternatives to achieve specific aims. The main objective is to enter into a discussion on the methodological meaning of “integrity”, “hard cases” and “right (...) answer”, as presented by Ronald Dworkin, and a critical reflection on the criticism of that approach levelled by Neil MacCormick, so as to confront the relevance of principle and policy arguments, in order to bring about a different methodological approach, an alternative jurisprudentialist conception of adjudication, incorporating a practical-normative constitutive dialectics between legal controversy and legal system, such as that presented by Castanheira Neves. The focus will, then, be the legitimacy of the connection of arguments of principle and consequentialist arguments in adjudication, its selection and its justification, stating, therefore, a specifically assumed judicium, a judicative decision, having the legal system as its horizon of normative reference and of substantial and institutional autonomy. (shrink)

Contemporary international law. Methodology -- The origin of sovereignty in Roman and medieval law -- The transformation of sovereignty and international law in late modernity -- The transformation of international law by human rights -- The UN convention system and US foreign policy -- IR realism and the positivity of international law -- Containment and disengagement -- Assassination and international law -- Humanitarian intervention and international law -- Lawfare, Wikileaks, and the rule of law.

This course book serves an undergraduate course in introduction to legal reasoning. It is designed to initiate students in the legal methods of case law analysis and statutory interpretation, prompting students to take a critical distance from the wielding of the methods. It helps students acquire or refine the techniques of close reading, analogizing, distinguishing, positing related fact patterns, and criticizing judicial and legislative exposition and logic.

This book combines metaphysics, aspects of modern logic, and legal theory in order to conceptualise a wrong in law's claim of right. The book takes as its starting point a restriction on the freedom of concept formation that is dictated by classical logic's inability to handle antinomies in reason's attempts to constitute its own foundations. Relating this to law's claim of right, the notion of 'wrong' does not fasten on law's violence or injustice, and neither does it seek to elaborate (...) a moral or ethical critique of law. On the contrary: it is sceptical of, and seeks an alternative to, the various ethical turns of recent legal and political theory. The 'wrong' of the wrong of law is logical and epistemic in character. It is a failure or refusal to recognise the cognitive relevance of contradictions of self-reference. In this respect, The Wrong of Law draws on a metaphysical-logical development from Kant via Hegel and Marx to the foundations of modern logic, in order to establish the sense in which a restriction on self-reference amounts to a limitation on truth-seeking or comprehension. This limitation is then demonstrated through analysis of the reasoning in a series of legal cases in Australia, concerning Indigenous peoples. This book will be of significant interest to scholars in critical legal theory, the philosophy of law and jurisprudence; as well as others with an interest in foundational studies across the disciplinary borders of metaphysics, mathematical logic, sociology and legal theory. (shrink)

In Section 1, I outline the history of natural law theory, covering Plato, Aristotle, the Stoics and Aquinas. In Section 2, I explore two alternative traditions of natural law, and explain why these constitute rivals to the Aristotelian tradition. In Section 3, I go on to elaborate a via negativa along which natural law norms can be discovered. On this basis, I unpack what I call three 'experiments in being', each of which illustrates the cogency of this method. In Section (...) 4, I investigate and rebut two seminal challenges to natural law methodology, namely, the fact/value distinction in metaethics and Darwinian evolutionary biology. In Section 5, I then outline and criticise the 'new' natural law theory, which is an attempt to revise natural law thought in light of the two challenges above. I conclude, in Section 6, with a summary and some reflections on the prospects for natural law theory. (shrink)

This chapter contains sections titled: The Emerging Interest in Methodology Particular Arguments Particular Topics A Concluding Overview References.

It has been tacitly assumed that certain fundamental “laws” of science have the same meaning and significance in the different scientific disciplines. Outside of quantum physics the law of causality was regarded as such a concept which was most generally applicable in the description of the systems of nature. However, the role of causality in recent research in biology seems not quite clear. There an explanation of the specific properties of biological systems does not assume the form of a simple (...) law such as a mathematical expression relating different states of one and the same system. Rather it is attempted to show how the properties of the system as a whole are established by the specific interaction of the parts of the system. (shrink)

The essays in this volume of the Australasian Studies in History and Philosophy of Science series are devoted to the subjects of natural kinds, scientific ...

Scholars have given attention to the question of whether morally-neutral philosophical analysis of the concept ‘law’ is a sustainable project. Less at- tention has been given to whether the methodological approach that relies on morally-neutral description and explanation, rather than on philosophical analysis, is a defensible project. My primary goal in this paper is to argue that although descriptive/explanatory theorizing is a logically possible project, it is not a defensible one. I claim that there is no reason to insulate legal (...) theorizing from moral arguments. Indeed, it is desirable for legal theorists to employ moral considerations because it is only through moral argument that we can answer important questions we care about with respect to law.Resumen:Muchos teóricos han prestado su atención a la pregunta sobre si el análisis filosófico moralmente neutral del concepto ‘derecho’ es un proyecto sostenible. En cambio, se ha prestado menos atención a discutir si el en- foque metodológico basado en descripciones y explicaciones moralmente neutrales, en lugar del análisis filosófico, es un proyecto defendible. Mi objetivo principal en este artículo es argumentar que, si bien la labor teórica descriptiva/explicativa es un proyecto lógicamente posible, no es, sin embargo, defendible. Yo sostengo que no hay razón para aislar la labor teórico-jurídica de los argumentos morales. Por el contrario, es deseable que los teóricos del derecho empleen consideraciones morales, debido a que es sólo a través de argumentos morales como podemos responder las preguntas que nos preocupan en relación con el derecho. (shrink)

Throughout, the book is unified by Posner's distinctive stance, which is pragmatist in philosophy, economic in methodology, and liberal (in the sense of John ...

This thought-provoking book develops and elaborates on the artifact theory of law, covering a wide range of related theoretical and practical topics. Offering a range of perspectives that flesh out the artifact theory of law, it also introduces criticisms of previous formulations of the theory and inquires into its potential payoffs. Featuring international contributions from both noted and up-and-coming scholars in law and philosophy, the book is divided into two parts. The first part further explores and evaluates the concept of (...) law as an artifact and analyses the background and theoretical basis of the theory. The second part comprises three sections on legal ontology, semantics and legal normativity, specifically in relation to law's artifactual nature. Providing cutting-edge insights at the intersection of law and philosophy, this book will appeal to scholars and students in philosophy of law, empirical legal studies, social ontology and the philosophy of society. (shrink)

The last decade has witnessed a particularly intensive debate over methodological issues in legal theory. The publication of Julie Dickson's Evaluation and Legal Theory (2001) was significant, as were collective returns to H.L.A. Hart's 'Postscript' to The Concept of Law. While influential articles have been written in disparate journals, no single collection of the most important papers exists. This volume - the first in a three volume series - aims not only to fill that gap but also propose a systematic (...) agenda for future work. The editors have selected articles written by leading legal theorists, including, among others, Leslie Green, Brian Leiter, Joseph Raz, Ronald Dworkin, and William Twining, and organized under four broad categories: 1) problems and purposes of legal theory; 2) the role of epistemology and semantics in theorising about the nature of law; 3) the relation between morality and legal theory; and 4) the scope of phenomena a general jurisprudence ought to address. (shrink)

This paper explores the methodological foundations of Thomas Piketty's recent book Capital in the twenty-first century. The current literature on Piketty's work lacks consensus as to which paradigm of economic thought Capital fits into. In response to that literature, this paper argues that Piketty offers a new methodological direction for economic science in the form of an analytical 'new-historicism'. The central emphasis of this methodology is an analysis of general dynamic laws on three levels: distribution, institutions, and history. A new-historical (...) methodological framework applies new analytical tools to old economic problems raised by Smith, Ricardo, Marx, and others. This distinguishes Piketty's framework from other contending paradigms or schools of economic thought, thereby alleviating confusion in the current literature surrounding Piketty's book. (shrink)

Until quite recently questions about methodology in legal research have been largely confined to understanding the role of doctrinal research as a scholarly discipline. In turn this has involved asking questions not only about coverage but, fundamentally, questions about the identity of the discipline. Is it (mainly) descriptive, hermeneutical, or normative? Should it also be explanatory? Legal scholarship has been torn between, on the one hand, grasping the expanding reality of law and its context, and, on the other, reducing this (...) complex whole to manageable proportions. The purely internal analysis of a legal system, isolated from any societal context, remains an option, and is still seen in the approach of the French academy, but as law aims at ordering society and influencing human behaviour, this approach is felt by many scholars to be insufficient. Consequently many attempts have been made to conceive legal research differently. Social scientific and comparative approaches have proven fruitful. However, does the introduction of other approaches leave merely a residue of 'legal doctrine', to which pockets of social sciences can be added, or should legal doctrine be merged with the social sciences? What would such a broad interdisciplinary field look like and what would its methods be? This book is an attempt to answer some of these questions. (shrink)

What are the aims of legal philosophy? Which questions should it seek to address? How should legal philosophers approach and engage with their subject-matter, and what constraints are incumbent on them as they do so? What are the criteria of success of theories of law, and how do we know if they have been met? Can there be progress in legal philosophy? In Elucidating Law, Julie Dickson addresses these and other questions concerning the methodology, or the philosophy, of legal philosophy (...) and offers her own distinctive response to them. The book advocates that legal philosophers should espouse an approach that Dickson terms 'Indirectly Evaluative Legal Philosophy.' This distinctive approach can facilitate legal philosophers' understanding of aspects of the nature of law, whilst avoiding prematurely or inappropriately regarding law as inherently morally valuable. Law is a powerful, systemic, and institutionalized social tool. It should be understood in a manner appropriate to its character. (shrink)

Natural law ethicists have typically argued that homosexual activity is immoral because it is "unnatural." Recent scientific information and theories, on the other hand, have been used to challenge this description and to provide moral backing for sexual activity among homosexuals. This paper traces some of the recent scientific claims about possible natural bases of homosexuality and then examines what significance these claims might have for several contemporary forms of natural law ethics. It argues that natural law assessments ought to (...) develop a careful and informed account of whether or to what extent homosexual activity can contribute to integral human flourishing rather than focusing on its status as " natural " or "unnatural" per se. (shrink)

This paper presents a methodology to design and implement programs intended to decide cases, described as sets of factors, according to a theory of a particular domain based on a set of precedent cases relating to that domain. We useDialectical Frameworks, a recent development in AI knowledge representation, as the central feature of our design method. ADFs will play a role akin to that played by Entity–Relationship models in the design of database systems. First, we explain how the factor hierarchy (...) of the well-known legal reasoning system CATO can be used to instantiate an ADF for the domain of US Trade Secrets. This is intended to demonstrate the suitability of ADFs for expressing the design of legal cased based systems. The method is then applied to two other legal domains often used in the literature of AI and Law. In each domain, the design is provided by the domain analyst expressing the cases in terms of factors organised into an ADF from which an executable program can be implemented in a straightforward way by taking advantage of the closeness of the acceptance conditions of the ADF to components of an executable program. We evaluate the ease of implementation, the performance and efficacy of the resulting program, ease of refinement of the program and the transparency of the reasoning. This evaluation suggests ways in which factor based systems, which are limited by taking as their starting point the representation of cases as sets of factors and so abstracting away the particular facts, can be extended to address open issues in AI and Law by incorporating the case facts to improve the decision, and by considering justification and reasoning using portion of precedents. (shrink)