Misplaced Pages

#997002

35-626: The Global JXDM is a comprehensive product that includes a data model, a data dictionary , and an XML schema that together is known as the Global JXDM. Global JXDM is independent of vendors, operating systems, storage media, and applications and is quickly becoming key technology for assisting how criminal and judicial organizations exchange information. The Global JXDM is sponsored by the United States Department of Justice (DOJ), Office of Justice Programs (OJP), with development supported by

70-497: A collection of tables with metadata. The term can have one of several closely related meanings pertaining to databases and database management systems (DBMS): The terms data dictionary and data repository indicate a more general software utility than a catalogue. A catalogue is closely coupled with the DBMS software. It provides the information stored in it to the user and the DBA, but it

105-464: A cumulative change log published along with each release. When a reasonable number of updates are approved by the GXSTF, a new version is released. The Global JXDM is an XML standard designed specifically for criminal justice information exchanges, providing law enforcement, public safety agencies, prosecutors, public defenders, and the judicial branch with a tool to effectively share data and information in

140-668: A great deal of time and resources as they don't have to create an arrest filing data dictionary and data model from scratch. In September, 2005, the Office of Justice Programs (OJP), together with the Global Justice Information Sharing Initiative (Global), officially issued a newer version of the Global Justice Extensible Markup Language (XML) Data Model (Global JXDM) to the justice community, Version 3.0.3. This "maintenance" release of

175-524: A list of specific updates, refer to the Global JXDM Change Log. Since its first prerelease in April 2003, the Global JXDM has continued to undergo intensive reviews, receive feedback and error reports online from the public, and provide a Global JXDM Listserv discussion forum for sharing expertise and support. Today, more than 50 law enforcement and justice-related projects have been implemented utilizing

210-469: A timely manner. The Global JXDM removes the burden from agencies to independently create exchange standards, and because of its extensibility, there is more flexibility to deal with unique agency requirements and changes. Through the use of a common vocabulary that is understood system-to-system, the Global JXDM enables access from multiple sources and reuse in multiple applications. The federal government has long encouraged criminal justice agencies throughout

245-439: A very specific set of data (victim name, date and time of the offense, etc.) as well as any associated artifacts (dashcam video, 911 audio transcript). Complications arise, however, from the fact that the justice community does not utilize a standard, common vocabulary when describing and recording events. Differences in terminologies can make it difficult or impossible for shared data to be interpreted and utilized. For example, if

280-775: Is created when the Oracle Database is created. Developers may also use DDS context from free and open-source software (FOSS) for structured and transactional queries in open environments. Here is a non-exhaustive list of typical items found in a data dictionary for columns or fields: Office of Justice Programs The Office of Justice Programs ( OJP ) is an agency of the United States Department of Justice that focuses on crime prevention through research and development , assistance to state, local, and tribal criminal justice agencies, including law enforcement , corrections , and juvenile justice through grants and assistance to crime victims. The Office of Justice Programs

315-621: Is headed by an Assistant Attorney General . Brent Cohen is the Acting Assistant Attorney General. OJP's Assistant Attorney General is responsible for the overall management and oversight of the office. In 1968, the Law Enforcement Assistance Administration (LEAA) was established under the Omnibus Crime Control and Safe Streets Act ; LEAA was abolished in 1982. Its predecessor agency was

350-419: Is mainly accessed by the various software modules of the DBMS itself, such as DDL and DML compilers, the query optimiser, the transaction processor, report generators, and the constraint enforcer. On the other hand, a data dictionary is a data structure that stores metadata , i.e., (structured) data about information. The software package for a stand-alone data dictionary or data repository may interact with

385-407: Is no universal standard as to the level of detail in such a document. In the construction of database applications, it can be useful to introduce an additional layer of data dictionary software, i.e. middleware , which communicates with the underlying DBMS data dictionary. Such a "high-level" data dictionary may offer additional features and a degree of flexibility that goes beyond the limitations of

SECTION 10

#1733094105998

420-463: Is supported by software companies which provide API services to MLS organizations. Developers use a data description specification (DDS) to describe data attributes in file descriptions that are external to the application program that processes the data, in the context of an IBM i . The sys.ts$ table in Oracle stores information about every table in the database. It is part of the data dictionary that

455-557: Is to create standardized rules to maintain data integrity and enforce business rules throughout one or more related applications. Some industries use generalized data dictionaries as technical standards to ensure interoperability between systems. The real estate industry, for example, abides by a RESO's Data Dictionary to which the National Association of REALTORS mandates its MLSs comply with through its policy handbook. This intermediate mapping layer for MLSs' native databases

490-470: The ASP.NET environment, Base One's data dictionary provides cross-DBMS facilities for automated database creation, data validation, performance enhancement ( caching and index utilization), application security , and extended data types . Visual DataFlex features provides the ability to use DataDictionaries as class files to form middle layer between the user interface and the underlying database. The intent

525-565: The DBMS Software, it is called a passive data dictionary. Otherwise, it is called an active data dictionary or data dictionary. When a passive data dictionary is updated, it is done so manually and independently from any changes to a DBMS (database) structure. With an active data dictionary, the dictionary is updated first and changes occur in the DBMS automatically as a result. Database users and application developers can benefit from an authoritative data dictionary document that catalogs

560-574: The FAQ on compatibility for an explanation. [REDACTED]  This article incorporates public domain material from websites or documents of the United States Department of Justice . Data dictionary A data dictionary , or metadata repository , as defined in the IBM Dictionary of Computing , is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format". Oracle defines it as

595-501: The GJXDM. The GJXDD breaks down the information that is exchanged between agencies into individual data components and gives them unique names and definitions. These data components in turn serve as the “building blocks” of data exchanges. Because the GJXDD defines a massive number of data components, smaller data dictionaries must be created for individual IEPs. These data dictionaries only contain

630-413: The Global JXDM, further demonstrating the flexibility and stability of the Global JXDM. The Global JXDM, Version 3.0.3 Global Justice XML Data Dictionary (Global JXDD) types and properties are rendered as XML Schema types, elements, and attributes. Also included are the most current enumeration type schemas (code tables) and their proxy schemas. Version 3.0.3 is compatible with Versions 3.0.2 and 3.0. See

665-626: The Global XML Structure Task Force (GXSTF), which works closely with researchers at the Georgia Tech Research Institute (GTRI). New releases are issued by the GXSTF, which reviews and evaluates each version of the Global JXDM. The GXSTF solicits feedback from technical experts and practitioners in both industry and government and authorizes Global JXDM changes based on this feedback. All approved additions, deletions, and modifications are applied to future releases, with

700-719: The IEPD Clearinghouse. Whenever a data dictionary and data model are created for an IEP, they are packaged within Information Exchange Package Documentation (IEPD). These IEPDs can be utilized as standards or templates for the creation of IEPs. For example, if an agency created an IEPD for an arrest filing, they could submit the IEPD to the Clearinghouse, where it could be downloaded by any agency wishing to facilitate electronic arrest filings. This saves agencies

735-535: The Version 3.0 Global JXDM series is enhanced to increase the ability of justice and public safety communities to share justice information at all levels laying the foundation for local, state, and national justice interoperability. Some of the enhancements incorporated into Version 3.0.3 include the addition of new components that are compatible with previous version 3.0.2, new "sequenceID" values for "PersonNameType" sub-elements to assign an alternate ordering independent of

SECTION 20

#1733094105998

770-566: The amount of programming required to build menus , forms , reports, and other components of a database application, including the database itself. For example, PHPLens includes a PHP class library to automate the creation of tables, indexes, and foreign key constraints portably for multiple databases. Another PHP-based data dictionary, part of the RADICORE toolkit, automatically generates program objects , scripts , and SQL code for menus and forms with data validation and complex joins . For

805-411: The concepts and definitions relevant to their corresponding data transfers. While data dictionaries define the vocabulary utilized by the GJXDM to transmit IEPs, the relationships between the different data components need to be defined in order for the data to be interpreted correctly. For example, the personal information for a number of people may be included in a data exchange regarding a burglary. If

840-600: The country to share information electronically. Historically, however, justice agencies have developed or invested in information systems independently of one another. While the applications that different organizations utilize to manage cases and store important information typically perform very similar functions, they often utilize unique technology or formatting that makes them incompatible with other systems. Consequently, many justice agencies have been forced to resort to inefficient methods of delivering information to each other, such as delivering important filings and documents via

875-478: The database by systems generated command files, tailored for each supported back-end DBMS. Oracle has a list of specific views for the "sys" user. This allows users to look up the exact information that is needed. Command files contain SQL Statements for CREATE TABLE , CREATE UNIQUE INDEX , ALTER TABLE (for referential integrity), etc., using the specific statement required by that type of database. There

910-454: The first prerelease of GJXDM was released in April 2003. When criminal justice agencies share data, they transmit Information Exchange Packages (IEPs) to each other. An IEP is a set of data that is transmitted between agencies for a specific purpose. For example, if a police department wanted the local prosecutor to charge an individual for a crime, the IEP sent from the police department would contain

945-711: The native "low-level" data dictionary, whose primary purpose is to support the basic functions of the DBMS, not the requirements of a typical application. For example, a high-level data dictionary can provide alternative entity-relationship models tailored to suit different applications that share a common database. Extensions to the data dictionary also can assist in query optimization against distributed databases . Additionally, DBA functions are often automated using restructuring tools that are tightly coupled to an active data dictionary. Software frameworks aimed at rapid application development sometimes include high-level data dictionary facilities, which can substantially reduce

980-601: The organization, contents, and conventions of one or more databases. This typically includes the names and descriptions of various tables ( records or entities ) and their contents ( fields ) plus additional details, like the type and length of each data element . Another important piece of information that a data dictionary can provide is the relationship between tables. This is sometimes referred to in entity-relationship diagrams (ERDs), or if using set descriptors, identifying which sets database tables participate in. In an active data dictionary constraints may be placed upon

1015-556: The physical XML sequence, and an updated Frequently Asked Questions (FAQs) resource that incorporates content from the Global JXDM Version 3.0 Reference Notes along with added FAQs. An important feature is that the Global JXDM, Version 3.0.3, is forward compatible with all XML instances written for Global JXDM, Version 3.0. Global JXDM, Version 3.0, instances validate with all 3.0.3 schemas and schema subsets. Global JXDM, Versions 3.0.2 and 3.0, will remain available indefinitely. For

1050-409: The police department in the above scenario utilizes the term "Supervision Official" to describe the officer in charge of an arrest, while the prosecutor typically uses it to describe an officer supervising a suspect, the transmitted IEP will result in confusion. The Global Justice XML Data Dictionary (Global JXDD or GJXDD) provides a solution to this problem by defining the common vocabulary utilized in

1085-494: The postal service. In March 2001, the OJP and the DOJ sponsored an effort to create a framework for the secure and timely sharing of information across the justice domain. Their objective was to lay the foundation for local, state, tribal, and national interoperability by providing a “common ground” that information systems across the country could use for data exchanges. After a two-year effort,

GJXDM - Misplaced Pages Continue

1120-399: The relationships between these data components are not defined, it will be impossible for justice professionals to distinguish the personal information of the owner of the house from that of the person who burglarized it. The GJXDM utilizes data models to describe the relationships between the different "building blocks" included in an IEP. Data models link these different concepts together by

1155-438: The software modules of the DBMS, but it is mainly used by the designers, users and administrators of a computer system for information resource management. These systems maintain information on system hardware and software configuration, documentation, application and users as well as other information relevant to system administration. If a data dictionary system is used only by the designers, users, and administrators and not by

1190-437: The underlying data. For instance, a range may be imposed on the value of numeric data in a data element (field), or a record in a table may be forced to participate in a set relationship with another record-type. Additionally, a distributed DBMS may have certain location specifics described within its active data dictionary (e.g. where tables are physically located). The data dictionary consists of record types (tables) created in

1225-403: The use of two types of relationships: “is_a” and “has_a.” The “is_a” type is used when one object or concept inherits characteristics from another type. The “has_a” relationship shows what kind of information an object has. In the example above, the burglar “is_a” person, while an investigating officer “has_a” Employment Person ID. The true power of the GJXDM lies in its reuse repository, known as

#997002