Arbitration, a form of alternative dispute resolution (ADR), is a technique for the resolution of disputes outside the courts, where the parties to a dispute refer it to one or more persons (the "arbitrators", "arbiters" or "arbitral tribunal"), by whose decision (the "award") they agree to be bound. It is a resolution technique in which a third party reviews the evidence in the case and imposes a decision that is legally binding for both sides and enforceable. Other forms of ADR include mediation (a form of settlement negotiation facilitated by a neutral third party) and non-binding resolution by experts. Arbitration is often used for the resolution of commercial disputes, particularly in the context of international commercial transactions.
Adjudication, is the legal process by which an arbiter or judge reviews evidence and argumentation including legal reasoning set forth by opposing parties or litigants to come to a decision which determines rights and obligations between the parties involved. Three types of disputes are resolved through adjudication:
Disputes between private parties, such as individuals or corporations.
Disputes between private parties and public officials.
Disputes between public officials or public bodies.
Expert Witness, is a witness, who by virtue of education, training, skill, or experience, is believed to have expertise and specialised knowledge in a particular subject beyond that of the average person, sufficient that others may officially and legally rely upon the witness's specialized (scientific, technical or other) opinion about an evidence or fact issue within the scope of his expertise, referred to as the expert opinion, as an assistance to the fact-finder. Expert witnesses may also deliver expert evidence about facts from the domain of their expertise. At times, their testimony may be rebutted with a learned treatise, sometimes to the detriment of their reputations.