Dataremanence is the residual representation of data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that does not remove data previously written to the media, or through physical properties of the data storage device storage medium that allow previously written data to be recovered. Dataremanence may make inadvertent disclosure of information sensitivity ... been developed to counter dataremanence. These techniques are classified as Clearing clearing , Purging ... of dataremanence. Causes Many operating system s, file manager s, and other software provide ... on complications gives further explanations for causes of dataremanence. Countermeasures Main Data ... used to counter dataremanence is to overwrite the storage medium with new data. This is often called ... Encrypting data before it is stored on the medium may mitigate concerns about dataremanence. If the Key ... remanence , it may effectively make any data on the medium unrecoverable. Even if the key is stored ... considered the most certain way to counter dataremanence. However, the process is generally .... Attempts to counter dataremanence by Overwriting overwriting may not be successful in such situations ... Secure Erase Trash. ref name SSD rp section 5 Data in RAM Dataremanence has been observed in static .... ref name skorobogatov cite paper title Low temperature dataremanence in static RAM author Sergei ... techreports UCAM CL TR 536.html ref Dataremanence has also been observed in dynamic random ... from fading away from the capacitors in their integrated circuits. A study found dataremanence ... cite book title A Guide to Understanding DataRemanence in Automated Information Systems publisher ... Overwritten Data Recovering Overwritten Data Forensics Wiki Data Erasure DEFAULTSORT DataRemanence ... of data throughout the data s life cycle, and persistence of data in memory that is typically ... more details
About magnetic remanence the data storage term DataremanenceRemanence or remanent magnetization is the magnetization ... ref Colloquially, when a magnet is magnetized it has remanence. ref Strictly speaking, it is still in the Earth s field, but that has little effect on the remanence of a hard magnet . ref The remanence ... . Sometimes the term retentivity is used for remanence measured in units of magnetic flux density ... glossary.html ref Types of remanence Saturation remanence The default definition for remanence is the magnetization ... such as a vibrating sample magnetometer and the zero field intercept is a measure of the remanence ... from other kinds of remanence it is called the saturation remanence or saturation isothermal remanence SIRM and denoted by math M rs math . In engineering applications the residual magnetization .... 1 . This is represented by a flux density math B R math . This value of remanence is one of the most ... they can produce. Neodymium magnets , for example, have a remanence approximately equal to 1.3 tesla ... electrical steel math B R math denotes remanence and math H C math is the coercivity . Isothermal remanence Often a single measure of remanence does not provide adequate information on a magnet. For example ... of remanence. One way of doing this is first Magnet Magnetization and demagnetization demagnetizing the magnet in an AC field, and then applying a field math H math and removing it. This remanence ... It is called the initial remanence ref Harvnb McCurrie Gaunt 1966 ref or the isothermal remanent ... giving the magnet a saturation remanence in one direction and then applying and removing a magnetic field in the opposite direction. ref name Wohlfarth This is called demagnetization remanence or dc demagnetization remanence and is denoted by symbols like math M d H math , where math H math is the magnitude of the field. ref name Pfeiffer Harvnb Pfeiffer 1990 ref Yet another kind of remanence can be obtained by demagnetizing the saturation remanence in an ac field. This is called ac demagnetization ... more details
Data mining Data modeling Computer data processing DataremanenceData set Data warehouse Database ...two other uses data in computer science Data computing pp move indef Editors please keep the count mass discussion and etymology in the body, not the intro. Data IPAc en icon d e t respell DAY t ... data qualitative or Quantitative data quantitative variable mathematics variable s, belonging to a set of items. Data in computing or data processing are often represented by a combination of items organized in rows and multivariate analysis multiple variables organized in columns. Data are typically the results of measurements and can be data visualisation visualised using graph data structure graph s or image s. Data as abstract concept can be viewed as the lowest level of abstraction from which information and then knowledge are derived. Raw data , i.e., unprocessed data, refers to a collection of number s, character computing characters and is a relative term data processing commonly occurs by stages, and the processed data from one stage may be considered the raw data of the next. Field work Field data refers to raw data collected in an uncontrolled in situ environment. Experimental data refers to data generated within the context of a scientific investigation by observation and recording. The word data is the plural of datum , Grammatical gender neuter past participle of the Latin ... , and so on, the terms givens and data are used interchangeably. Such usage is the origin of data as a concept in computer science or data processing data are numbers, words, images, etc ... which distances to all other data are measured. Any measurement or result is a datum , but data ... Latin plural data are used as the plural of datum in English, but data is commonly treated ... usage. For example, This is all the data from the experiment . This usage is inconsistent with the rules of Latin grammar and traditional English These are all the data from the experiment . Even ... more details
otheruses Data disambiguation Debt, AIDS, Trade, Africa or DATA was a multinational Non governmental organization non government organization founded in January 2002 in London by U2 s Bono along with Robert Sargent Shriver III Bobby Shriver and activist s from the Jubilee 2000 Drop the Debt campaign. DATA was created for the purposes of obtaining social equality equality and justice for Africa through debt relief adjusting trade rules which burden Africa eliminating the AIDS in Africa African AIDS epidemic strengthening democracy furthering accountability by the wealthiest nations and African leaders and Transparency humanities transparency towards the people. In 2007, DATA and Bono were jointly awarded the National Constitution Center s 2007 Liberty Medal for their groundbreaking efforts to address the AIDS crisis and extreme poverty in Africa. Start up funds came from the Bill & Melinda Gates Foundation , financier George Soros , and technology entrepreneur Edward W. Scott . ref cite news url http www.time.com time printout 0,8816,1142270,00.html title The Constant Charmer author Josh Tyrangiel date 2005 12 19 work Time Magazine ref In 2007, DATA and the ONE Campaign decided to join forces, and in January 2008, they formally merged under the name ONE. ref cite news url http www.reuters.com article idUSN2953856520071029 title Bono s U.S. based anti poverty groups to merge author Lesley Wroughton date 2007 10 29 work Reuters ref DATA received support from the Christian rock Alternative rock bands Switchfoot and Third Day . References references External links http www.one.org ONE official site Category International nongovernmental organizations Category HIV AIDS in Africa Category Organizations founded by Bono int org stub de Debt, AIDS, Trade in Africa it DATA sv DATA f rening vi DATA ... more details
Infobox software name Data Shredder logo caption screenshot developer CBL Datenrettung latest release version 1.0.1 latest release date release date 2007 04 03 operating system Windows, MS DOS language Multilingual genre Dataremanence Secure erase license Proprietary, freeware website http www.cbldatarecovery.com cbldatarecovery.com Data Shredder also known as CBL Data Shredder is a data destruction utility designed to Data erasure securely erase a hard disk or digital storage device, completely removing the data and making it Data recovery unrecoverable . The software utilizes an overwrite method of destroying data rather than other means of data destruction such as degaussing , physical destruction . Wiping standards class wikitable Windows Version DOS Version Linux Edition United States ... Yes Yes International Data Destruction and Demand Widespread need for secure data destruction meant ... Magazine included Data Shredder as one of its must have security tools. ref http www.pcmag.com article2 ... made security of data stored on hard drives a bigger concern of the general public. ref http www.pbs.org ..., 2009 ref Data destruction became a part of regular service offerings from the company as press coverage highlighted the step in the data recovery process. ref http www.tomshardware.com reviews saving data a head crash,1044 6.html Saving your data after a head crash What Happens with Customer Data? Tom s Hardware ref See also Dataremanence Computer recycling References reflist External links http ph.hardwarezone.com news view.php?cid 12&id 6027 CBL Data Recovery Offers Tool to Protect Users ... to make deleted files unrecoverable 4 File Shredders to Make Deleted Data Unrecoverable https www.protectstar.com index.php?site en data shredder pro ProtectStar Data Shredder Professional for Microsoft ... iShredder for Apple iOS to secure erase Apple iPhone iPad iPod touch devices Data Erasure Category Data erasure ... more details
Data erasure also called Dataremanence Clearing data clearing Contradict inline article Dataremanence reason Dataremanence Clearing says the data may still be recoverable after data clearing date January 2012 or data wiping is a software based method of overwriting data that completely destroys all Dataremanence electronic data residing on a hard disk drive or other digital media . Permanent data erasure goes beyond basic file deletion commands, which only remove direct pointers to data disk sector s and make data recovery possible with common software tools. Unlike degaussing and physical destruction, which render the storage media unusable, data erasure removes all information while leaving .... By accessing the entire hard drive, data erasure eliminates the risk of dataremanence . Data erasure ... of other tools for various operating systems. See also DataremanenceData recovery Electronic ... application to write patterns of random Citation needed date January 2012 meaningless data onto all of a hard drive s sectors. There are key differentiators between data erasure and other overwriting methods, which can leave data intact and raise the risk of data breach or Data breach spill , identity theft and failure to achieve regulatory compliance. Many data eradication programs also ... software should provide verification of data removal, which is necessary for meeting certain standards. To protect data on lost or stolen media, some data erasure applications remotely destroy data if the password is incorrectly entered. Data erasure tools can also target specific data on a disk for routine ... data. Social security numbers, credit card numbers, bank details, medical history and classified .... Data breach Cleanup section Makes an unclear link between data theft and data erasure date January 2012 Increased storage of sensitive data, combined with rapid technological change and the shorter lifespan of IT assets, has driven the need for permanent data erasure of electronic devices as they are retired ... more details
topic. ref http www.cypherpunks.to peter usenix01.pdf DataRemanence in Semiconductor Devices ...refimprove date February 2012 Data recovery is the process of salvaging data from damaged, failed, corrupted, or inaccessible Computer data storage Secondary storage secondary storage media when it cannot be accessed normally. Often the data are being salvaged from storage media such as internal or external ... common data recovery scenario involves an operating system OS failure typically on a single ... data files or copies of them on a different partition from the replaceable OS system files. Another ... partition , or a hard disk failure . In any of these cases, the data cannot be easily read. Depending ... , or hard disk recovery techniques ranging from software based recovery of corrupted data to hardware ... data can be read. In a third scenario, files have been file deletion deleted from a storage medium ..., the original file may be restored. Although there is some confusion over the term, data recovery ... data after physical damage A wide variety of failures can cause physical damage to storage media .... Physical damage always causes at least some data loss, and in many cases the logical structures ... the hardware or technical expertise required to make these repairs. Consequently, costly data recovery companies are often employed to salvage important data. Recovery techniques Recovering data ... failure requires data recovery in order to salvage its contents. Examples of physical recovery ... them into a healthy drive, and oftentimes a combination of all of these procedures. Some data recovery ... individual. Many of these procedures will void the manufacturer s warranty. Recovering data after logical non hardware damage Image Data loss of image file.JPG thumb Result of a failed data recovery from a Hard disk drive. Corrupt partitions and filesystems, media errors In some cases, data on a hard ... media errors. In the majority of these cases, at least a portion of the original data can be recovered ... more details
Wiktionary dataData consist of propositions that reflect reality, such as measurements or observations of a variable. Data or DATA may also refer to Data computing , in computer science, often distinguished from code or software Data Euclid Data Euclid , a book by Euclid Data moth Data moth , a moth genus Data Star Trek Data Star Trek , a fictional android in the Star Trek universe DATA , a non governmental organization founded by Bono DATA band , a techno pop band created by Georg Kajanus Data Records , a record label Data URI scheme Design and Technology Academy , a school in San Antonio, Texas, USA Durham Area Transit Authority , the public transit agency serving Durham, North Carolina, USA Data, a character in The Goonies DATA, a diarylpyrimidines diaryltriazine , a class of organic molecules disambiguation da Data flertydig de Data el es Data desambiguaci n eu Datu argipena fr Data it Data ms Data nyahkekaburan nl Data no Data nn Data pt Data desambigua o simple Data sv Data ... more details
Data driven means that progress in an activity is compelled by data , rather than by intuition or personal experience . This often refers to Data driven programming Data driven journalism Data driven testing Data driven learning, or DDL Data driven science disambig ... more details
Unreferenced date March 2007 A data field is a place where you can store data . Commonly used to refer to a column in a database or a field in a data entry form or web form. The field may contain data to be entered as well as data to be displayed. See also wiktionary DataData dictionary Data element Data acquisition Data hierarchy Category Data management it Campo informatica ... more details
Unreferenced date December 2009 Data auditing is the process of conducting a data audit to assess how company s data is fit for given purpose. This involves data profiling profiling the data and assessing the impact of data quality poor quality data on the organization s performance and profits. DEFAULTSORT Data Auditing Tech stub Category Data management Category Data quality zh ... more details
Unreferenced date December 2009 Dynamic data or transactional data denotes information that is asynchronously changed as further updates to the information become available. The opposite of this is persistent data , which is data that is infrequently accessed and not likely to be modified. Dynamic data is also different from streaming media streaming data , in that there is no constant flow of information. Rather, updates may come at any time, with periods of inactivity in between. See also Transaction data compsci stub DEFAULTSORT Dynamic Data Category Computer data ... more details
Data retention defines the policies of persistent data and records management for meeting legal and business data archive data archival requirements. A data retention policy weighs legal and privacy concerns against economics and need to know concerns to determine both the retention time, archival rules, data formats, and the permissible means of storage, access, and encryption. Data retention issues plagued recovery of essential data of many early computer system s, notably the data recovery for the Viking lander . ref http nssdc.gsfc.nasa.gov nssdc news sept00 viking lander.html Data Recovery for Viking Lander , NASA , September 2000 ref See also Telecommunications data retention http wiki.openrightsgroup.org wiki Data Retention Open Rights Group s page on Data Retention References refs Category Computer data law stub computing stub no Datalagring ... more details
Unreferenced date October 2006 Data maintenance is the adding, deleting, changing and updating of binary data binary and high level computer file files , and the real world data associated with those files. Data can be maintained manually and or through an automated Computer program program , but at origination and translation delivery point must be translated into a binary representation for storage. Data is usually edited at a slightly higher level in a format relevant to the content of the data such as text, images, or scientific or financial information . It is also the backing up, storage and general up keep of this all this data in the long term. See also SCADA Data base dataData destruction Data governance Data management Information management Product Information Management DEFAULTSORT Data Maintenance Category Data management pt Manuten o de dados ... more details
Data matrix can refer to Matrix mathematics A rectangular array of elements Data matrix statistics A matrix, generally of numbers, representing data used in statistical analysis Data matrix computer An encoded barcode. Data set A collection of data in tabular form. Data matrix multivariate statistics A mathematical Matrix mathematics matrix of data whose rows represent different repetition of an experiment, and whose columns represent different kinds of datum taken for each repetition. dab ... more details
Data classification may refer to Data classification data management Data classification business intelligence Classification machine learning , classification of data using machine learning algorithms Assigning a level of sensitivity to classified information In computer science, the data type of a piece of data A specialist technology company who specialise in delivering http www.dataclassification.com Data Classification Solutions See also Classification disambiguation Categorization disambig ... more details
A data source is any of the following types of sources for mostly digitized data a database in the Java software platform, datasource is a special name for the connection set up to a database from a server a computer file a data stream disambig Category Computer data ... more details
Reference data are data describing a physical or virtual object and its properties. fact date April 2008 Reference data are usually described with nouns. fact date April 2008 Reference data is used in data management to define characteristics of an identifier that are used within other data centric processes. For example reference data within finance might be a product master or a security master. Typical reference data are Physical products, material, assets, customers, locations Virtual cost centers, planned buildings Reference data can change over time via transactions described in transaction data . E.g. a logistical transaction can change the location of an object, a financial transaction like adding tax can change the price of an object and a series of work transaction can change a virtual object like a planned building into a physical object. Master reference data A special type of reference data is master reference data these are reference data shared over a number of systems. Some master reference data are universal like the list of Country Countries and can be covered by a global standard in this case ISO 3166 1 . Master data and Master reference data Master reference data are sometimes called Master Data . This usage of the term Master data should be avoided, fact date April 2008 since Master data is also the term used for original data , like an original recording see also Master Tape . Master data is collected on a http www.polarlake.com reference data management introduction Data Management Platform . The platform enables the acquisition, management and distribution of vendor and internally sourced Reference Data. See also Data modeling Master Data Management Enterprise bookmarking Data architecture Transaction data Category Data management de Stammdaten ... more details
A data architect is a person responsible for ensuring that the data assets of an organization are supported ... should cover database s, data integration and the means to get to the data. Usually the data architect achieves his her goals via setting enterprise data standards. A Data Architect can also be referred to as a Data Modeler, although the role involves much more than just creating data model s. The definition ..., and the principles governing its design and evolution ., where the data architect primarily focuses on the aspects related to data. In TOGAF the Open Group Architecture Framework http www.togaf.org ... and evolution over time. According to DAMA Data Management Association http www.dama.org , , Data Architect ... Certified Data Management Professional would have a wide range of such skills. Translating this to Data architecture helps defining the role of the data architect as the one responsible for developing and maintaining a formal description of the data and data structures this can include data definitions, data models, data flow diagram s, etc. in short metadata . Data architecture includes topics such as metadata management, business semantics, data modeling and metadata workflow management. A data architect s job frequently includes the set up a metadata registry and allows domain specific stakeholders to maintain their own data elements. Some fundamental skills of a Data Architect are logical data model Logical Data modeling physical data model Physical Data modeling Development of a data strategy and associated polices Selection of capabilities and systems to meet business information needs A Data Strategy enumerates the Data Policies each of which commit the organization to codifying a best practice. A policy may specify any one area of data standards data security or Information Assurance data retention or data steward ship. Data architects usually have experience in one or more of the following technologies Data Dictionary Data dictionaries Data warehouse Data warehousing ... more details
In the field of data management , data classification as a part of Information Lifecycle Management ILM process can be defined as tool for categorization of data to enable help organization to effectively answer following questions What data types are available? Where are certain data located? What access ... or application owners. IT staff is informed about the data value and on the other hand management usually application owners understands better to what segment of data centre has to be invested ..., legal discovery, and compliance with government regulations. Data classification is typically a manual ... the data. How to start process of data classification? First step is to evaluate and divide the various applications and data as follows Structured data statistically around 15 of data Generally describes proprietary data which can be accessible only through application or application programming interfaces API Applications that produce structured data are usually database applications. This type of data usually brings complex procedures of data evaluation and migration between the storage tiers ... Matter Experts. Unstructured data all other data that cannot be categorized as structured around 85 . Generally describes data files that has no physical interconnectivity e.g. documents, pictures, multimedia files, ... . Relatively simple process of data classification is criteria assignment. Simple process of data migration between assigned segments of predefined storage tiers. Types of data classification ... a discrete and b continuos Basic criteria for unstructured data classification Time criteria is the simplest and most commonly used where different type of data is evaluated by time of creation ... content classification algorithms are most advanced forms of unstructured data classification Basic criteria for structured data classification These criteria are usually initiated by application requirements such as Disaster recovery and Business Continuity rules Data centre resources optimization ... more details
Data at Rest is an IT term referring to inactive data which is stored physically in any digital form e.g. databases, data warehouses, spreadsheets, archives, tapes, off site backups, mobile devices etc. . File 3 states of data.jpg thumb Figure 1 The 3 states of data. Three States of DataData at Rest is used as a complement to the terms Data in Use and Data in Motion ref http www.nortoninternetsecurity.cc 2011 03 data loss prevention.html ref which together define the 3 states of digital Data see Figure 1 . Alternative definitions of Data at Rest There is some disagreement as to the boundary between Data at Rest and Data in Use. While it is generally accepted that archive data i.e. which never changes , regardless of its storage medium, is Data at Rest and active data subject to constant or frequent change is Data in Use, inactive data could be taken to mean data which may change, but infrequently. The imprecise nature of terms such as constant and frequent means that some stored data cannot be comprehensively defined as either Data at Rest or Data in Use. Alternative definitions of Data at Rest include all data in computer storage while excluding data that is traversing a network or temporarily ... definition data at rest ref File DAR v DIU.JPG thumb Figure 2 Data at Rest vs Data in Use. The term used to describe all data in storage but excludes any data that frequently traverses the network or that which resides in temporary memory. Data at rest includes but is not limited to archived data, data which is not accessed or changed frequently, files stored on hard drives, USB thumb drives, files ... . ref http www.webopedia.com TERM D data at rest.html ref These definitions could be taken to assume that Data at Rest is a superset of Data in Use however, Data in Use, subject to frequent change, has distinct processing requirements from Data at Rest, whether completely static or subject to occasional change. The division of Data at Rest into the sub categories static and inconstant addresses ... more details
Data binding is a general technique that binds two data information sources together and maintains synchronization of data. This is usually done with two data information sources with different types as in XML data binding . However, in UI data binding , data and information objects of the same type are bound together e.g. Java UI elements to Java objects . If the binding has been made in the proper manner, then, each data change is reflected automatically by the elements that are bound to the data. The term data binding is also used in case where an outer representation of data in an element changes, and the underlying data is automatically updated to reflect this change. As an example, a change in a text box code TextBox code element could modify the underlying data value. ref http msdn.microsoft.com en us library ms752347.aspx what is data binding What is data binding? ref See also XML data binding UI data binding References references Categories DEFAULTSORT Data Binding Category Data management Interwikies ja pl Data Binding pt Liga o de dados ... more details
Persistent Data denotes information that is infrequently accessed and not likely to be modified. The opposite of this is dynamic data also known as transactional data where information is asynchronously changed as further updates to the information become available. Updates to dynamic data may come at any time, with periods of inactivity in between. Category Computer data ... more details
Data format in information technology can refer to either one of Data type , constraint placed upon the interpretation of data in a type system Signal electrical engineering , a format for signal data used in signal processing Recording format , a format for encoding data for storage on a storage medium File format , a format for encoding data for storage in a computer file Container format digital , a format for encoding data for storage by means of a standardized audio video codecs file format Content format , a format for converting data to information Audio format , a format for processing sound audio data Video format , a format for processing video data Disambig simple Data format uk ... more details
In database s and computer networking data truncation occurs when data computing data or a data stream such as a computer file file is stored in a location too short to hold its entire length. Data truncation may occur automatically, such as when a long string computer science string is written to a smaller data buffer buffer , or deliberately, when only a portion of the data is wanted. Depending on what type of data validation a program or operating system has, the data may be truncated silently i.e., without informing the user , or the user may be given an error message . See also Fixed point arithmetic Precision loss and overflow Fixed point arithmetic Precision loss and overflow Data loss Category Data quality Comp sci stub hr Kra enje podataka ... more details
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