The purpose of this section is to provide a basic definition of some terms, widely used in this document, in order to facilitate the reading of this manual from the start. Many of the terms listed below will be thoroughly explained in the following chapters. Area: Relational container of inspection points and users. It can be considered as territorial area, production plant, a building floor, etc. In order to be able to compile a checklist, every user with Auditor profile must be associated to at least one area that contains at least one inspection point. Chapter: Chapters are part of the checklist; they gather sections, which gather queries. Checklist: Object that gathers the queries of one specific audit. Inside, it is divided into chapters and sections. The checklist is compiled during an audit, and at the end of it, a report is generated. The data on the report cannot be modified, because they portray an image of the very moment when the audit has been carried out. Query: Central object of the checklist. Each query must be answered during the checklist compilation. Every query must obtain one and only answer: this can be a) positive b) non-applicable c) negative. Group: Object that allows to gather users and to manage authorizations in order to get access to the Checker system. In case of users with Auditor profile: the group they belong to can be associated with the checklists that the users of the group can compile. Each user with Auditor profile must be a member of at least one group (the “Auditors” group), which must be associated to at least one checklist. Action plan: Queries with negative answer can generate an action plan: that is to say, a corrective action aimed to bring back to compliancy status a non-compliant aspect spotted during the compilation of one checklist. Every action plan is defined by WHAT must be done in order to establish again the compliancy status, WHO must carry out the corrective action and within WHEN this activity must be carried out. Inspection point: Every compiled checklist is associated to one specific inspection point; this is either the place where the audit will be carried out, or the object that will undergo the audit. Section: Sections are part of the checklists, and they are gathered in chapters. Sections contain queries.