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Operation-oriented, a combination of both black and white box, with one or more black-box operations interleaved with one or more white-box operations. This mode of testing is not preferred, however, some complex systems do not have the necessary interfaces to perform one or the other type
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Knowledge-Driven diagnostic system (such as a technician or diagnostician) where the knowledge acquired over time is used as a "mental model" of the system's operation and informs the diagnostic system through logical reasoning to one or more possible or likely causes for a situation to
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Operation-interleaved diagnostics, that incorporate diagnostics into the normal operation of a system component, thus any marginal operating mode is immediately diagnosed. Examples of hardware components with features that assist a diagnostic program are:
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Multi-purpose diagnostic, a monolithic program that performs multiple tasks that may or may not be suitable for all uses. This would be similar to a hammer that will perform well with nails, less so with screws, and poorly with nuts and
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Sometimes if the owner of an electronic device asks the manufacturer how to access the hidden diagnostic program, they may reply to the consumer saying that the information is considered to be "proprietary" and cannot be shared.
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Diagnostics programs may be simple or complex, operating unknowingly within everyday devices or awaiting their invocation to make more complex performance assessments. Everyday examples are a
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that standardized the diagnostics port across all models of cars and light trucks allowing vehicle owners and repair technicians access to the vehicle's error code and emissions history.
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Personal computer users have diagnostics options from both software and hardware sources, e.g., Hewlett-Packard's (HP's) diagnostics guide for confirming hardware failures.
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The diagnostics program for a device or system may be independently located or integrated within. These
Methods of Operation are arranged, more-or-less, in order of
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342:"Off-line diagnostics" that are run outside the primary operating system, typically to reduce the masking influence of software on hardware issues
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As computers became smaller, more mobile, computer programs were used to perform diagnostics tasks. In the late 1960s, Volkswagen introduced the
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Single-purpose diagnostic, also referred to as "Defined-purpose" diagnostic, such as a program that validates the
Windows DirectX configuration.
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Diagnostics that are run on-demand when a user needs assistance, typically within the primary operating system of the computer (e.g.Windows)
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that flashes its control board's LED four times warning of critically misaligned safety sensors and impending shutdown.
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says its version number such as "one point three six" and starts playing through a set of sounds one after the other.
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that determines the operational status within the software, hardware, or any combination thereof in a component, a
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end-user targeted diagnostics, with an easy to comprehend non-technical presentation, and an emphasis on solutions
263:-like, into an environment easily tailored to particular industry requirements. Key to its design is its reusable
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Solution-based diagnostics, that test for known failure modes by identifying if their known symptoms are detected.
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Background monitoring of system indicators, for statistical analysis of trends, and for recording abnormal events.
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Household refrigerators that display diagnostics of their internal temperature, ice machine functionality, etc.
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operating system that performs all of its diagnostics programs. Application examples are:
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with an emphasis on checking assembly-related issues and optimizing for time
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Diagnostic programs are also inserted into consumer electronic products and
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service/warranty testing, focusing on identifying a failed or marginal
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Modular diagnostic, which combines sets of single-purpose diagnostics,
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that logs memory failure events that were automatically corrected.
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that enabled system operators to perform testing and diagnostics.
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that displays code F6 to warn of a shorted temperature probe or a
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and their increasing value of diagnostics information.
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performed by humans, not by computer programs. See
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231:Self-Monitoring, Analysis and Reporting Technology
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336:embedded hardware diagnostic program in OEM PCs
362:that diagnoses electronic devices or systems.
321:program that performs a basic check of the
413:"Craftsman Garage Door Opener Error Codes"
388:"Microwave Error, Fault or Function Codes"
113:Learn how and when to remove this message
463:"HP PCs - Testing for Hardware Failures"
304:Example diagnostics program applications
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350:Onboard Diagnostics II system (OBD II)
365:When an electronic device such as a
51:adding citations to reliable sources
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16:For medical diagnosis software, see
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325:before commencing normal operation
238:Error Correcting Code (ECC) memory
129:(also known as a test mode) is an
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438:"Error Codes - Refrigerator"
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392:products.geappliances.com
319:Power-on self-test (POST)
417:www.searspartsdirect.com
229:Modern hard drives have
174:Built-in test equipment
169:procedural instructions
494:Utility software types
442:www.lg.com/us/support/
358:Industrial production
285:field-replaceable unit
467:support.hp.com/us-en/
275:manufacturing testing
236:Some systems may use
194:increasing complexity
291:refurbishing centric
188:Methods of operation
62:"Diagnostic program"
47:improve this article
149:garage door opener
127:diagnostic program
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103:December 2009
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58:Find sources:
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36:This article
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470:. Retrieved
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45:Please help
40:verification
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374:References
73:newspapers
348:The 1996
317:embedded
213:White box
207:Black box
488:Category
472:29 April
447:29 April
422:27 April
397:27 April
269:software
265:hardware
134:sequence
163:History
87:scholar
367:Bop It
299:exist.
256:bolts.
138:system
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287:(FRU)
94:JSTOR
80:books
474:2018
449:2018
424:2018
399:2018
334:UEFI
330:BIOS
315:UEFI
311:BIOS
267:and
261:Lego
66:news
49:by
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